Digital audio workstations, editing, effects and processing |
Record, edit and process audio for radio, television and film post-production

Worx4 X
Apple Final Cut Pro X companion that consolidates and trims media in a project
Worx4 X
Produce » Post Production » Audio Post-Production » Digital audio workstations, editing, effects and processing »
Worx4 X is a new application for users of Apple FCP X, which solves the problem of needing to consolidate, and trim media used in a project.
Worx4 X takes an FCP X XML that contains one or more Projects. It works through the XML finding all the media references, adds handles, joins any overlapping references and then copies just the used portions to a new directory.
Finally it writes the XML back out, into the same directory, but having adjusted the media references to point to the new media, and all the start times of the references to reflect the new trimmed lengths of the media.
Worx4 X takes an FCP X XML that contains one or more Projects. It works through the XML finding all the media references, adds handles, joins any overlapping references and then copies just the used portions to a new directory.
Finally it writes the XML back out, into the same directory, but having adjusted the media references to point to the new media, and all the start times of the references to reflect the new trimmed lengths of the media.

X2Pro Audio Convert
X2Pro Audio Convert integrates Final Cut Pro X into the professional audio workflow
X2Pro Audio Convert
Produce » Post Production » Audio Post-Production » Digital audio workstations, editing, effects and processing »
X2Pro Audio Convert is a cutting edge conversion application for delivering Final Cut Pro X projects to Avid Pro Tools for audio finishing.
X2Pro provides a smooth workflow between Final Cut Pro X and Avid Pro Tools, allowing users to take full advantage of the functionality of these world-class products now and in the future.
X2Pro integrates Final Cut Pro X into professional audio workflows, converting the exported Final Cut Pro X XML into an AAF file, which Avid Pro Tools can open as a session, delivering seamless integration between the two applications.
Using the enhanced metadata in FCPXML 1.4 from Final Cut Pro X, X2Pro provides a high fidelity conversion to a Pro Tools session, with support for audio gain and key frames.
Taking advantage of the innovative metadata-based organizing features in Final Cut Pro X, unlimited numbers of audio Roles in Final Cut Pro X are converted into Pro Tools tracks, allowing sound designers and mixers to start working immediately.
X2Pro provides a smooth workflow between Final Cut Pro X and Avid Pro Tools, allowing users to take full advantage of the functionality of these world-class products now and in the future.
X2Pro integrates Final Cut Pro X into professional audio workflows, converting the exported Final Cut Pro X XML into an AAF file, which Avid Pro Tools can open as a session, delivering seamless integration between the two applications.
Using the enhanced metadata in FCPXML 1.4 from Final Cut Pro X, X2Pro provides a high fidelity conversion to a Pro Tools session, with support for audio gain and key frames.
Taking advantage of the innovative metadata-based organizing features in Final Cut Pro X, unlimited numbers of audio Roles in Final Cut Pro X are converted into Pro Tools tracks, allowing sound designers and mixers to start working immediately.

SigMod
Enhance the functionality of your plug-ins and DAW with twelve different signal modification units.
SigMod
Produce » Post Production » Audio Post-Production » Digital audio workstations, editing, effects and processing »
Custom signal architecture
Instantly enhance the functionality of your plug-ins and DAW with thirteen different signal modification units. Explore new creative possibilities and quickly add missing features. Each module can easily be inserted, swapped and moved around making new options to correct, convert or tweak your audio.
Combine these thirteen single-process modules in any order to design the precise routing you require. Auto-resizing keeps the signal flow and functionality clear at all times.
Use stereo plug-ins in mid/side mode
Use the Mid/Side module to add mid/side functionality to classic stereo compressor and EQ emulations, or get creative with mid/side delays, distortion and many other effects by inserting the mid/side encoder/decoder either side of any left/right plug-in instance. On top of this, the Split module allows you to set up an entirely different signal chain for each channel for even more flexibility.
Protect speakers, ears & sanity
Insert the Protect unit across your output bus and this safety module will automatically cut in to prevent bursts of noise or feedback howls due to system errors, saving both your nerves and your speakers. Manual or auto reset options give you the level of protection you need - a real gift when working with headphones!
Tap and crossover
Want to try some parallel processing? Drop in the Tap module and you are good to go. Use the Crossover module to split the highs from the lows and apply different effects to different frequency ranges - great for avoiding muddying up the low frequencies or getting creative with automation and sweep effects.
Expand your system
Instantly enhance the functionality of your plug-ins and DAW with thirteen different signal modification units. Explore new creative possibilities and quickly add missing features. Each module can easily be inserted, swapped and moved around making new options to correct, convert or tweak your audio.
Combine these thirteen single-process modules in any order to design the precise routing you require. Auto-resizing keeps the signal flow and functionality clear at all times.
Use stereo plug-ins in mid/side mode
Use the Mid/Side module to add mid/side functionality to classic stereo compressor and EQ emulations, or get creative with mid/side delays, distortion and many other effects by inserting the mid/side encoder/decoder either side of any left/right plug-in instance. On top of this, the Split module allows you to set up an entirely different signal chain for each channel for even more flexibility.
Protect speakers, ears & sanity
Insert the Protect unit across your output bus and this safety module will automatically cut in to prevent bursts of noise or feedback howls due to system errors, saving both your nerves and your speakers. Manual or auto reset options give you the level of protection you need - a real gift when working with headphones!
Tap and crossover
Want to try some parallel processing? Drop in the Tap module and you are good to go. Use the Crossover module to split the highs from the lows and apply different effects to different frequency ranges - great for avoiding muddying up the low frequencies or getting creative with automation and sweep effects.
Expand your system
- Master & channel strip features
- Signal monitoring & routing options
- Mid/side conversion
- Output level protection
- Frequency banded splits
- 1000's of possibilities...

SEQ-S
Produce » Post Production » Audio Post-Production » Digital audio workstations, editing, effects and processing »
Powerful sonic sculpting
SEQ-S delivers sculpting power beyond any other EQ. The resizable direct-draw interface makes it easy to quickly fine-tune your audio, with incredible resolution that you can’t get with a traditional parametric interface. The 3 independent EQ curves can be individually assigned to channels across the surround panorama, giving complete control over your spatial environment, with access to stereo, mid/side, 5.1 and 7.1 surround sound operation.
Unparalleled flexibility
Fluid EQ morphing
SEQ-S is capable of fluid filter morphs, introducing a wealth of new options ranging from controlled scene transitions up to groundbreaking creative sound design.
Seamless transitions between different environments, creative morphs and tempo-locked effects are easily achieved, with full dynamic visual feedback.
Intuitive EQ matching
Use SEQ-S to capture the flavour of a piece of source audio and match it to your current work – great for restoration work, and as a reference for mastering. Or use this match technique on individual tracks to unify different takes, microphone positions, and more.
Plus, by inverting the match EQ curve, you can achieve a minimally invasive technique for carving out space in a complex mix where traditional EQs won’t cut it.
For post and broadcast
Precise corrections which would be very time consuming with a traditional parametric interface are a breeze with SEQ-S’s flexible nodes and direct draw interface.
Match 'invert' makes it quick and easy to find space for dialogue in a busy soundtrack, avoiding heavy-handed EQ or intrusive ducking.
Flexible to suit your needs
SEQ-ST
Mono and stereo audio production
SEQ-S
Surround compatibility up to 7.1 for post & movie production
Typical applications
SEQ-S delivers sculpting power beyond any other EQ. The resizable direct-draw interface makes it easy to quickly fine-tune your audio, with incredible resolution that you can’t get with a traditional parametric interface. The 3 independent EQ curves can be individually assigned to channels across the surround panorama, giving complete control over your spatial environment, with access to stereo, mid/side, 5.1 and 7.1 surround sound operation.
Unparalleled flexibility
- Linear phase spline EQ
- Curve scaling and smoothing
- Zoomable and resizable interface
- No phase smearing
- Dynamic EQ morphs
- Frequency node locking
- Psychoacoustic banding
- Match EQ presets
Fluid EQ morphing
SEQ-S is capable of fluid filter morphs, introducing a wealth of new options ranging from controlled scene transitions up to groundbreaking creative sound design.
Seamless transitions between different environments, creative morphs and tempo-locked effects are easily achieved, with full dynamic visual feedback.
Intuitive EQ matching
Use SEQ-S to capture the flavour of a piece of source audio and match it to your current work – great for restoration work, and as a reference for mastering. Or use this match technique on individual tracks to unify different takes, microphone positions, and more.
Plus, by inverting the match EQ curve, you can achieve a minimally invasive technique for carving out space in a complex mix where traditional EQs won’t cut it.
For post and broadcast
Precise corrections which would be very time consuming with a traditional parametric interface are a breeze with SEQ-S’s flexible nodes and direct draw interface.
Match 'invert' makes it quick and easy to find space for dialogue in a busy soundtrack, avoiding heavy-handed EQ or intrusive ducking.
Flexible to suit your needs
SEQ-ST
Mono and stereo audio production
SEQ-S
Surround compatibility up to 7.1 for post & movie production
Typical applications
- Independent control of left/right, mid/side & surround channels
- EQ matching
- Fluid EQ morphing
- Creating 'perfect space' for vocals or dialog

Paragon
True convolution reverb with the flexibility and control of a classic algorithmic reverb.
Paragon
Produce » Post Production » Audio Post-Production » Digital audio workstations, editing, effects and processing »
Reverb taken to new heights
Paragon is a true convolution reverb with the flexibility and control of a classic algorithmic reverb, giving you the sound of real spaces, now with unprecedented tweakability. Via re-synthesis, Paragon offers full control of the decay, room size and brightness of reverbs modelled on 3D recordings of real spaces - with no time-stretching, which means no artefacts - not to mention spectral analysis and precise EQ of the Impulse Responses themselves.
Gone are the days of enormous IR libraries. Why have 30 recordings of different-sized churches, when you can meticulously adjust the characteristics of one church?
Perfect for surround applications including Dolby Atmos bed tracks, the reverb operates in up to 7.1.2 channels of audio.
Purity of sound
Seamless tweakability
The IR library isn’t too big, and it isn’t too small, it’s just right. Gone are the days of keeping an Impulse Response saved for every possible configuration of every possible space - with Paragon, all you need is a select few, which can be tweaked to create almost limitless combinations of spaces.
Using state of the art technology developed alongside the University of York’s Dr. Jez Wells, 3D Impulse Responses are analyzed, decomposed and re-synthesized to create new authentic spaces.
Paragon’s IR panel also allows you to seamlessly tweak the frequency response of real spaces, by EQing the reverb model itself and altering the frequency-dependent decay rate.
Real spaces reimagined
Paragon’s reverb decay and room size can be set significantly longer, larger, shorter and smaller than that of the original IR space, without introducing ugly artefacts as a result of stretching or removing samples. Unlike a traditional convolution reverb, Paragon does not use a static Impulse Response, and this wider scope allows you to transparently transform the sound of the space.
For film & television
As the first 3D-compatible convolution reverb, Paragon is an ideal addition to your Dolby Atmos workflow - create a sense of space like never before.
Paragon’s adjustable crosstalk creates a sense of liveliness and interaction between channels, and allows you to produce surround reverb even from mono or stereo sources. Paragon offers the control and flexibility to determine how reverb from each channel interacts with the other channels, for example improving dialog intelligibility by removing reverb from the centre channel, but maintaining a sense of space and location by sending the dry centre channel audio to other reverb channels.
Typical applications
Paragon is a true convolution reverb with the flexibility and control of a classic algorithmic reverb, giving you the sound of real spaces, now with unprecedented tweakability. Via re-synthesis, Paragon offers full control of the decay, room size and brightness of reverbs modelled on 3D recordings of real spaces - with no time-stretching, which means no artefacts - not to mention spectral analysis and precise EQ of the Impulse Responses themselves.
Gone are the days of enormous IR libraries. Why have 30 recordings of different-sized churches, when you can meticulously adjust the characteristics of one church?
Perfect for surround applications including Dolby Atmos bed tracks, the reverb operates in up to 7.1.2 channels of audio.
Purity of sound
- True convolution reverb
- Dolby Atmos and surround-compatible
- Individually configurable crosstalk per channel
- Unique technology for re-synthesis of authentic IRs
- HPF and LPF per channel
- Spectral analysis
- Switchable LFE
- Compact mode
Seamless tweakability
The IR library isn’t too big, and it isn’t too small, it’s just right. Gone are the days of keeping an Impulse Response saved for every possible configuration of every possible space - with Paragon, all you need is a select few, which can be tweaked to create almost limitless combinations of spaces.
Using state of the art technology developed alongside the University of York’s Dr. Jez Wells, 3D Impulse Responses are analyzed, decomposed and re-synthesized to create new authentic spaces.
Paragon’s IR panel also allows you to seamlessly tweak the frequency response of real spaces, by EQing the reverb model itself and altering the frequency-dependent decay rate.
Real spaces reimagined
Paragon’s reverb decay and room size can be set significantly longer, larger, shorter and smaller than that of the original IR space, without introducing ugly artefacts as a result of stretching or removing samples. Unlike a traditional convolution reverb, Paragon does not use a static Impulse Response, and this wider scope allows you to transparently transform the sound of the space.
For film & television
As the first 3D-compatible convolution reverb, Paragon is an ideal addition to your Dolby Atmos workflow - create a sense of space like never before.
Paragon’s adjustable crosstalk creates a sense of liveliness and interaction between channels, and allows you to produce surround reverb even from mono or stereo sources. Paragon offers the control and flexibility to determine how reverb from each channel interacts with the other channels, for example improving dialog intelligibility by removing reverb from the centre channel, but maintaining a sense of space and location by sending the dry centre channel audio to other reverb channels.
Typical applications
- Creating immersive reverb
- Atmos-compatible convolution reverb
- Manipulating IRs whilst maintaining true convolution characteristics
- Authentic sounds of real spaces

Monofilter
Bass management filter. Sharpen, define, and align your bass for the tightest mix.
Monofilter
Produce » Post Production » Audio Post-Production » Digital audio workstations, editing, effects and processing »
A solid foundation
When solid or natural sounding bass is a requirement in your recording projects, Monofilter provides the foundation for real power and definition. Bring transparent solidity to your bass; sharpen, define and align for the tightest mix.
Monofilter defines the centre of your bass, so easily lost through stereo effects processing, synth sound generation, unwanted phase inconsistencies and live recording microphone bleed. Market-leading features give accurate control over stereo spread, transition and phase alignment, with precise visual feedback in a tactile interface that lets you grab the applied stereo envelope and manipulate it directly – without using abstract parameters and knobs.
Trusted by producers
With presets for every situation and intuitive controls for fine tuning to perfection, Monofilter anchors your bass with ease, while retaining the perceived spatial characteristics of the original sound.
Detailed control
Monofilter offers powerful fine-tuning of your low end sounds and their interaction with higher frequencies. The plug-in's highly tweakable parameters include a high pass filter, plus independent width control of user-defined high and low frequencies.
These width controls range from completely mono at their minimum point, to completely unchanged at their maximum. The changes are clearly displayed in an easily intuitive stereo width envelope.
Automatic phase alignment
Stereo effects which use phase shifting can cause cancellations and superpositions of certain frequencies when played back in mono. Monofilter includes a Phase control which can correct phase imbalance below its threshold frequency by adjusting the phase of the L and R components being summed.
This function has an auto mode which can be especially useful for input signals with a dynamic phase shift.
Typical applications
When solid or natural sounding bass is a requirement in your recording projects, Monofilter provides the foundation for real power and definition. Bring transparent solidity to your bass; sharpen, define and align for the tightest mix.
Monofilter defines the centre of your bass, so easily lost through stereo effects processing, synth sound generation, unwanted phase inconsistencies and live recording microphone bleed. Market-leading features give accurate control over stereo spread, transition and phase alignment, with precise visual feedback in a tactile interface that lets you grab the applied stereo envelope and manipulate it directly – without using abstract parameters and knobs.
Trusted by producers
With presets for every situation and intuitive controls for fine tuning to perfection, Monofilter anchors your bass with ease, while retaining the perceived spatial characteristics of the original sound.
- Independent mono & stereo trim
- Stereo spectrum analysis
- Zero Latency option
- Linear Phase option
- HQ mode
- Phase correlation control
Detailed control
Monofilter offers powerful fine-tuning of your low end sounds and their interaction with higher frequencies. The plug-in's highly tweakable parameters include a high pass filter, plus independent width control of user-defined high and low frequencies.
These width controls range from completely mono at their minimum point, to completely unchanged at their maximum. The changes are clearly displayed in an easily intuitive stereo width envelope.
Automatic phase alignment
Stereo effects which use phase shifting can cause cancellations and superpositions of certain frequencies when played back in mono. Monofilter includes a Phase control which can correct phase imbalance below its threshold frequency by adjusting the phase of the L and R components being summed.
This function has an auto mode which can be especially useful for input signals with a dynamic phase shift.
Typical applications
- Bringing definition to weak bass
- Re-centering low frequencies
- Correcting phase issues
- Restoring old masters
- Mastering for vinyl
- Optimising for louder playback
- Ensuring mono-compatibility
- Fixing samples

LM-Correct
A unique, immediate, and hassle-free route to loudness-compliant audio in your workflow.
LM-Correct
Produce » Post Production » Audio Post-Production » Digital audio workstations, editing, effects and processing »
Immediate loudness compliance
LM-Correct gives you a unique, immediate and hassle-free route to loudness-compliant audio in your day-to-day loudness workflow, saving you time and preventing costly mistakes.
Either within your NLE/DAW or as a standalone application, LM-Correct delivers automated compliance with True Peak correction, solving your compliance issues on the spot. Used in conjunction with a real-time meter, LM-Correct saves iterative adjustments to the mix as you approach target levels, allowing transparent in-edit 'quick-touch' finishing of your audio. It’s an essential part of your loudness toolkit.
LM-Correct's interface is designed to facilitate intuitive operation. Whether the plug-in or the standalone application is in use, the process for using LM-Correct is conceptually the same.
Fully featured
In addition to standard loudness features, our unique look-ahead True Peak limiter also prevents potential compliance failure due to loudness correction. You can be sure your audio is compliant every time.
Automated, faster than real-time
For file based-processes (either with the standalone, Avid AudioSuite or Adobe Premiere Pro CC CEP version), LM-Correct rapidly assesses and adjusts the entire file much faster than real time.
Automatically handling audio files from mono through 7.1.2, LM-Correct is compliant with all current loudness standards, and if needed you can specify the optional dialog-gated measure.
Automatically repurpose & reversion
LM-Correct dramatically increases efficiency when delivering multiple versions and repurposing for different regions and playout specifications.
Transform audio from one specification to the next with a single click, faster than real-time, without the need to manually repurpose in your editor.
Optional DynApt extension
With this optional extension, powered by technology developed for our server-side solutions, even complex specifications can be met with great sounding algorithms and smooth efficiency. Uniquely, the new DynApt extension also allows immediate correction for LRA and dynamics, whilst preserving dialog intelligibility and correctly identifying and respecting intentional dramatic transitions.
For post and broadcast
LM-Correct is ideal for use in situations where time is of the essence, providing an automatic method of rapidly conforming audio to current loudness standards. The plug-in can be used within a project to measure and correct audio without needing to leave the editing environment, enabling rapid in-place loudness normalisation of mono, stereo or multi-channel audio.
LM-Correct can also be used as a final ‘back-stop’, ensuring that finished files are within specification and performing an in-place fix where errors are found.
Loudness Toolkit has been included in the audio tool category of Netflix’s Production Technology Alliance. This is a programme for manufacturers that handles sound, image or metadata during the processes of production to postproduction. If the product meets specific criteria, it is considered as a candidate for the alliance. Any product that bears the alliance logo has been assessed to ensure that it meets with Netflix’s technical and workflow requirements.
Feature summary
Typical applications
LM-Correct gives you a unique, immediate and hassle-free route to loudness-compliant audio in your day-to-day loudness workflow, saving you time and preventing costly mistakes.
Either within your NLE/DAW or as a standalone application, LM-Correct delivers automated compliance with True Peak correction, solving your compliance issues on the spot. Used in conjunction with a real-time meter, LM-Correct saves iterative adjustments to the mix as you approach target levels, allowing transparent in-edit 'quick-touch' finishing of your audio. It’s an essential part of your loudness toolkit.
LM-Correct's interface is designed to facilitate intuitive operation. Whether the plug-in or the standalone application is in use, the process for using LM-Correct is conceptually the same.
Fully featured
In addition to standard loudness features, our unique look-ahead True Peak limiter also prevents potential compliance failure due to loudness correction. You can be sure your audio is compliant every time.
- Faster than real-time
- Plug-in or standalone
- Integrated TP limiting
- Single-click loudness solution
- Clear, intuitive operation
- Accurate & quick-finishing
Automated, faster than real-time
For file based-processes (either with the standalone, Avid AudioSuite or Adobe Premiere Pro CC CEP version), LM-Correct rapidly assesses and adjusts the entire file much faster than real time.
Automatically handling audio files from mono through 7.1.2, LM-Correct is compliant with all current loudness standards, and if needed you can specify the optional dialog-gated measure.
Automatically repurpose & reversion
LM-Correct dramatically increases efficiency when delivering multiple versions and repurposing for different regions and playout specifications.
Transform audio from one specification to the next with a single click, faster than real-time, without the need to manually repurpose in your editor.
Optional DynApt extension
With this optional extension, powered by technology developed for our server-side solutions, even complex specifications can be met with great sounding algorithms and smooth efficiency. Uniquely, the new DynApt extension also allows immediate correction for LRA and dynamics, whilst preserving dialog intelligibility and correctly identifying and respecting intentional dramatic transitions.
For post and broadcast
LM-Correct is ideal for use in situations where time is of the essence, providing an automatic method of rapidly conforming audio to current loudness standards. The plug-in can be used within a project to measure and correct audio without needing to leave the editing environment, enabling rapid in-place loudness normalisation of mono, stereo or multi-channel audio.
LM-Correct can also be used as a final ‘back-stop’, ensuring that finished files are within specification and performing an in-place fix where errors are found.
Loudness Toolkit has been included in the audio tool category of Netflix’s Production Technology Alliance. This is a programme for manufacturers that handles sound, image or metadata during the processes of production to postproduction. If the product meets specific criteria, it is considered as a candidate for the alliance. Any product that bears the alliance logo has been assessed to ensure that it meets with Netflix’s technical and workflow requirements.
Feature summary
- Automated standard compliance
- ITU-R BS. 1770 | EBU R128 | CALM Act compliant
- Integrated loudness target
- Maximum True Peak Level
- Short-term and momentary loudness limiting
- Optional DynApt LRA dynamics targeting
- EBU mode
- Automatic mono through 5.1 compatibility + 7.1.2 support
- Leq(m) (TASA) measurement
Typical applications
- Faster than real-time loudness analysis
- Final compliance checks for mixed audio
- Immediate finishing of audio to loudness standards
- Integrated True Peak limiting

ISL
Produce » Post Production » Audio Post-Production » Digital audio workstations, editing, effects and processing »
Mastering & post production
ISL is a transparent look-ahead limiter designed to allow you to get on with creative audio production while it takes care of True Peak compliance for you.
ISL uses the standardised True Peak algorithms of ITU-R B.S. 1770 and related standards (including Apple ‘afclip’ True Peak detection), and is suitable for the control of audio for post production, music mastering and broadcast applications. True Peak limiting can also be used to ensure that downstream codecs (mp3, AAC etc.) do not introduce distortion into the signal.
Pristine quality
No need to second guess your sample-peak limiter time and again, or deliberately increase headroom to avoid a downstream problem. Just dial in your True Peak limit and let ISL take care of the rest.
Powerful processing
Unlike traditional limiters, ISL provides a TPlim control, automatically adjusting transfer curve parameters for minimally invasive brick-wall protection.
Auto-release monitors incoming audio for low frequency content, dynamically adapting to prevent distortions and deliver transparent audio in the most demanding of situations.
Innovative visualisations
With unique steering and ducking meters, ISL guides you to the perfect settings. Whether you are preserving directional integrity or atmospheric ambience, ISL gives you the information and control you need to achieve your objective with ease. New processing enhancements assess the incoming audio for frequency content and automatically take care of those minor adjustments required when LF content drives the limiter, delivering increased transparency whilst maintaining our renowned reputation of intuitive operation.
For post and broadcast
World class, broadcast quality limiting is an essential requirement for any broadcast production, and the latest standards also demand True Peak compliance. ISL delivers both, giving you superb sound with complete confidence when meeting True Peak delivery criteria.
With ITU-R B.S. 1170-4 compliance and a dedicated brick-wall TPlim setting, you can produce with confidence, leaving ISL to transparently take care of the compliance.
Loudness Toolkit has been included in the audio tool category of Netflix’s Production Technology Alliance. This is a programme for manufacturers that handles sound, image or metadata during the processes of production to postproduction. If the product meets specific criteria, it is considered as a candidate for the alliance. Any product that bears the alliance logo has been assessed to ensure that it meets with Netflix’s technical and workflow requirements.
Transparent, reliable
In use on a daily basis in thousands of studios across the world, ISL is a proven reliable standard for transparent True Peak limiting.
Now in version 2, ISL delivers reliable brick wall limiting and in-depth control to handle the most demanding of situations.
Available in several editions there is an ISL to suit every production requirement.
ISL 2st - Mono and Stereo audio production
ISL 2 - Surround compatibility up to 7.1.2 for Post & Movie production
ISL 2st DSP & ISL 2 DSP - Avid HDX hardware compatible editions
Typical applications
ISL is a transparent look-ahead limiter designed to allow you to get on with creative audio production while it takes care of True Peak compliance for you.
ISL uses the standardised True Peak algorithms of ITU-R B.S. 1770 and related standards (including Apple ‘afclip’ True Peak detection), and is suitable for the control of audio for post production, music mastering and broadcast applications. True Peak limiting can also be used to ensure that downstream codecs (mp3, AAC etc.) do not introduce distortion into the signal.
Pristine quality
No need to second guess your sample-peak limiter time and again, or deliberately increase headroom to avoid a downstream problem. Just dial in your True Peak limit and let ISL take care of the rest.
- Broadcast compliant
- Protect AAC, MP3 etc.
- Master for online delivery
- Surround capable
- ITU-R B.S. 1770-4
- Apple Afclip
- Auto release
- TPmax limit
Powerful processing
Unlike traditional limiters, ISL provides a TPlim control, automatically adjusting transfer curve parameters for minimally invasive brick-wall protection.
Auto-release monitors incoming audio for low frequency content, dynamically adapting to prevent distortions and deliver transparent audio in the most demanding of situations.
Innovative visualisations
With unique steering and ducking meters, ISL guides you to the perfect settings. Whether you are preserving directional integrity or atmospheric ambience, ISL gives you the information and control you need to achieve your objective with ease. New processing enhancements assess the incoming audio for frequency content and automatically take care of those minor adjustments required when LF content drives the limiter, delivering increased transparency whilst maintaining our renowned reputation of intuitive operation.
For post and broadcast
World class, broadcast quality limiting is an essential requirement for any broadcast production, and the latest standards also demand True Peak compliance. ISL delivers both, giving you superb sound with complete confidence when meeting True Peak delivery criteria.
With ITU-R B.S. 1170-4 compliance and a dedicated brick-wall TPlim setting, you can produce with confidence, leaving ISL to transparently take care of the compliance.
Loudness Toolkit has been included in the audio tool category of Netflix’s Production Technology Alliance. This is a programme for manufacturers that handles sound, image or metadata during the processes of production to postproduction. If the product meets specific criteria, it is considered as a candidate for the alliance. Any product that bears the alliance logo has been assessed to ensure that it meets with Netflix’s technical and workflow requirements.
Transparent, reliable
In use on a daily basis in thousands of studios across the world, ISL is a proven reliable standard for transparent True Peak limiting.
Now in version 2, ISL delivers reliable brick wall limiting and in-depth control to handle the most demanding of situations.
Available in several editions there is an ISL to suit every production requirement.
ISL 2st - Mono and Stereo audio production
ISL 2 - Surround compatibility up to 7.1.2 for Post & Movie production
ISL 2st DSP & ISL 2 DSP - Avid HDX hardware compatible editions
Typical applications
- Mix and master for music streaming services
- Produce broadcast compliant audio
- Transparent end of chain limiting
- Apple 'afclip' inter-sample monitoring
- Protection for downstream data compression
- Preserving quality for podcast material
- Inter-sample clip management in hi-res files
- Loudness compliance
- Audio for video production

Halo Vision
Produce » Post Production » Audio Post-Production » Digital audio workstations, editing, effects and processing »
Customizable surround audio analysis
Comprehensive analysis for 3D and immersive audio; Halo Vision is a customizable, real-time visual analysis suite. A variety of modules provide audio professionals with a clearer understanding of every aspect of their audio, allowing for precise and confident decision making and troubleshooting, and pinpointing problem areas which might be missed using ears alone.
Configurable displays
Correlation views
The Correlation Matrix displays colour-coded phase relationships between every channel, with a larger arched meter for more detailed analysis, and anti-correlation alerts at a user-defined threshold.
The Correlation Web shows a network of channels with an interconnecting line between each pair. When the phase relationship between two channels becomes anti-correlated, the corresponding line lights up.
Both of these views use Contextual Correlation by default. Standard calculations used by other correlation meters are normalised in such a way that two signals might appear to be highly anti-correlated, even if one signal is so much louder or quieter than the other that mixing them together will not cause phase cancellation. Contextual Correlation compensates for these level differences, only highlighting correlation issues which are likely to cause a problem.
Haze views
With low frequencies at the centre and high frequencies on the outer edge, the circular Frequency Haze displays frequency content across the surround field, with channel labels in typical speaker positions.
The Location Haze provides a visualization of the perceived location of your audio, showing energy distribution across the surround field, with brighter sections indicating increased “energy”.
Other views
In ‘Combined’ mode, the Spectrum view displays an FFT level-against-frequency graph for all the channels in one spectrum. In ‘Groups’ mode, channels can be organised into groups of spectrums.
The True Peak view provides a True Peak dB level meter for each channel.
The Timecode view displays a timecode readout based on the current host/DAW playback position.
Effortlessly speed up your daily workflow
Halo Vision is the result of our most in-depth market research to date, the product of a series of interviews with many of our trusted and respected customers in the industry, with the aim of discovering exactly what they want, need and expect from surround and immersive visual audio analysis.
What makes Halo Vision unique is its ability to display a wide range of complex information intuitively, without the need for a crib sheet or tons of on-screen clutter. We have built upon features, ideas and inspiration from other products on the market - as well as other highly-regarded plug-ins of our own, including but not limited to Halo Upmix, Paragon and VisLM - in order to create a concise, streamlined analysis suite.
Typical applications
Comprehensive analysis for 3D and immersive audio; Halo Vision is a customizable, real-time visual analysis suite. A variety of modules provide audio professionals with a clearer understanding of every aspect of their audio, allowing for precise and confident decision making and troubleshooting, and pinpointing problem areas which might be missed using ears alone.
Configurable displays
- Correlation Matrix
- Correlation Web
- Frequency Haze
- Location Haze
- Spectrum
- True Peak
- Timecode
Correlation views
The Correlation Matrix displays colour-coded phase relationships between every channel, with a larger arched meter for more detailed analysis, and anti-correlation alerts at a user-defined threshold.
The Correlation Web shows a network of channels with an interconnecting line between each pair. When the phase relationship between two channels becomes anti-correlated, the corresponding line lights up.
Both of these views use Contextual Correlation by default. Standard calculations used by other correlation meters are normalised in such a way that two signals might appear to be highly anti-correlated, even if one signal is so much louder or quieter than the other that mixing them together will not cause phase cancellation. Contextual Correlation compensates for these level differences, only highlighting correlation issues which are likely to cause a problem.
Haze views
With low frequencies at the centre and high frequencies on the outer edge, the circular Frequency Haze displays frequency content across the surround field, with channel labels in typical speaker positions.
The Location Haze provides a visualization of the perceived location of your audio, showing energy distribution across the surround field, with brighter sections indicating increased “energy”.
Other views
In ‘Combined’ mode, the Spectrum view displays an FFT level-against-frequency graph for all the channels in one spectrum. In ‘Groups’ mode, channels can be organised into groups of spectrums.
The True Peak view provides a True Peak dB level meter for each channel.
The Timecode view displays a timecode readout based on the current host/DAW playback position.
Effortlessly speed up your daily workflow
Halo Vision is the result of our most in-depth market research to date, the product of a series of interviews with many of our trusted and respected customers in the industry, with the aim of discovering exactly what they want, need and expect from surround and immersive visual audio analysis.
What makes Halo Vision unique is its ability to display a wide range of complex information intuitively, without the need for a crib sheet or tons of on-screen clutter. We have built upon features, ideas and inspiration from other products on the market - as well as other highly-regarded plug-ins of our own, including but not limited to Halo Upmix, Paragon and VisLM - in order to create a concise, streamlined analysis suite.
Typical applications
- Surround and immersive mix analysis up to 7.1.2
- Checking phase correlation
- Visualising spatial information
- Ensuring mixes translate to different channel layouts
- Mixing in unfamiliar or badly treated rooms

Halo Upmix
Produce » Post Production » Audio Post-Production » Digital audio workstations, editing, effects and processing »
Full control, intuitive ease
From naturally extracted and expanded soundscapes to full cinematic big-stage enhancement, Halo Upmix delivers all the control you need to fine-tune your surround mix to perfection. With unique centre channel management, including switchable dialog extraction, Halo Upmix is perfect for all types of production from archive restoration and TV through to the full 7.1 feature film experience. An optional 3D extension adds Dolby Atmos bed track (7.1.2) and Auro 3D (7.1.4) compatibility, and Ambisonic outputs. The Halo Upmix algorithms produce a natural, coherent spatial upmix, preserving the character of the original audio without adding any artificial reverb, chorus or delays. With the 'Exact' control engaged, Halo Upmix can be used with confidence that the original source integrity is precisely preserved in the downmix.
Natural extension
Powerful real-time analysis of the original stereo material identifies and extracts locational cues to naturally extend the panorama, leaving the inherent character of the original source intact.
Powerful spatial analysis
Halo also includes a powerful spatial analysis view, intuitively showing the energy distribution of the upmixed panorama. Colour can additionally be used to indicate the speaker source for audio in any position, clearly indicating cases including phantom vs hard centre predominance.
Downmix compatibility
Because Halo Upmix generates a coherent spatial sound, you can be assured of a high-quality downmix. The 'exact' mode function ensures ultimate downmix performance in situations where maintaining the relationship between the original, upmixed and downmixed versions is imperative, for example in TV repurposing.
3D Immersive Extension
The optional 3D Immersive Extension introduces additional vertical controls via an expanded user interface including control over Ltm and Rtm placement for Dolby Atmos compatibility. An additional real-time analysis view is also included for the vertical dimension, showing energy distribution of the output audio. The enhanced upmix algorithm allows for simultaneous use of all the original features including dialog isolation and individual channel output control. The 3D Immersive Extension is suitable for numerous applications including sound design, film score, restoration & archive, music and atmospheric soundscape production.
To suit almost any situation
Upmixing includes LCR, 3.1, 4.0, 4.1, 5.0, 5.1, 6.0, 6.1, 7.0 & 7.1.
The Halo Upmix 3D Immersive Extension expands this to 7.1.2 and Ambisonic, and currently supports Avid Pro Tools (AAX) & Steinberg Nuendo (VST3) for Windows and OSX.
Typical applications
From naturally extracted and expanded soundscapes to full cinematic big-stage enhancement, Halo Upmix delivers all the control you need to fine-tune your surround mix to perfection. With unique centre channel management, including switchable dialog extraction, Halo Upmix is perfect for all types of production from archive restoration and TV through to the full 7.1 feature film experience. An optional 3D extension adds Dolby Atmos bed track (7.1.2) and Auro 3D (7.1.4) compatibility, and Ambisonic outputs. The Halo Upmix algorithms produce a natural, coherent spatial upmix, preserving the character of the original audio without adding any artificial reverb, chorus or delays. With the 'Exact' control engaged, Halo Upmix can be used with confidence that the original source integrity is precisely preserved in the downmix.
Natural extension
Powerful real-time analysis of the original stereo material identifies and extracts locational cues to naturally extend the panorama, leaving the inherent character of the original source intact.
- Coherent spatial upmix
- Full access to surround balances
- Low frequency energy control
- Clear visual feedback
- Direct control over upmix parameters
- No artificial reverb, chorus or delays
- 'Exact' downmix mode with in-place audition
- Neural network dialog extraction
Powerful spatial analysis
Halo also includes a powerful spatial analysis view, intuitively showing the energy distribution of the upmixed panorama. Colour can additionally be used to indicate the speaker source for audio in any position, clearly indicating cases including phantom vs hard centre predominance.
Downmix compatibility
Because Halo Upmix generates a coherent spatial sound, you can be assured of a high-quality downmix. The 'exact' mode function ensures ultimate downmix performance in situations where maintaining the relationship between the original, upmixed and downmixed versions is imperative, for example in TV repurposing.
3D Immersive Extension
The optional 3D Immersive Extension introduces additional vertical controls via an expanded user interface including control over Ltm and Rtm placement for Dolby Atmos compatibility. An additional real-time analysis view is also included for the vertical dimension, showing energy distribution of the output audio. The enhanced upmix algorithm allows for simultaneous use of all the original features including dialog isolation and individual channel output control. The 3D Immersive Extension is suitable for numerous applications including sound design, film score, restoration & archive, music and atmospheric soundscape production.
To suit almost any situation
Upmixing includes LCR, 3.1, 4.0, 4.1, 5.0, 5.1, 6.0, 6.1, 7.0 & 7.1.
The Halo Upmix 3D Immersive Extension expands this to 7.1.2 and Ambisonic, and currently supports Avid Pro Tools (AAX) & Steinberg Nuendo (VST3) for Windows and OSX.
Typical applications
- Stem and group upmixing
- 7.1 cinematic sound stage enhancement
- TV stereo to surround upmixing with hard centre
- Repurposing of original stereo for cinematic release
- TV archive enhancement for 5.1 broadcast
- Natural extension of original stereo panoramas and atmospheres
- Upmix to Dolby Atmos compatible 7.1.2 bed track (3D Immersive Extension required)
- Upmix to 1st, 2nd & 3rd order Ambisonic (AmbiX format) for VR applications (3D Immersive Extension required)

Halo Downmix
Precise downmixing, surround balancing, mix monitoring, and sophisticated stereo fold-down.
Halo Downmix
Produce » Post Production » Audio Post-Production » Digital audio workstations, editing, effects and processing »
Complement your workflow
Halo Downmix enables precise downmixing, surround balancing, mix monitoring and sophisticated stereo fold-down. The glue that brings your workflow together, allowing you to deliver in surround and stereo with ease, and without compromise. Produce better downmixes and enhance the downmix compatibility of your surround mixes, with an interface perfectly designed for the task in hand. Halo Downmix is the ideal complement to any surround workflow.
Precise control
Streamline your workflow with versatile downmix balancing and mix monitoring.
Expert surround-to-stereo
Using standard downmix coefficients can sometimes lead to unsatisfactory results, particularly if legacy upmixing practices were used for the original surround mix. Halo Downmix quickly mitigates these issues and produces a more coherent stereo mix, controlling excessive diffuse sound from artificial reverb, and removing delay artefacts from the rear channels.
Fine-tune surround-to-surround
Adjust existing 5.1 or 7.1 mixes in surround-to-surround mode. Individual channels, and the balance between direct/diffuse sound can be adjusted to fine-tune or re-balance surround audio where access to the original mix is not possible.
3D Immersive Extension
The 3D Immersive Extension option for Halo Downmix adds the ability to downmix from 7.1.2 - the format used for Dolby Atmos bed tracks.
Parallel workflows
Halo Downmix can also be used in conjunction with the NUGEN Receive plug-in (included) to enable a parallel surround/stereo workflow. This allows for rapid A/B checks between the full surround mix and the stereo downmix.
Flexible, intuitive interface
Halo Downmix provides a highly creative solution for precise downmixing. Intuitive, visual controls for relative levels, timing, and direct/ambient sound balance allow unprecedented fine-tuning, delivering accurate downmixes no longer limited by typical in-the-box processes. Halo Downmix’s highly customisable interface includes both advanced & compact modes, with quick-select ‘in-place’ monitoring of stereo and surround signals, as well as quick linked solo and mute functions at every stage, and clear visualisation of surround energy distribution.
Typical applications
Halo Downmix enables precise downmixing, surround balancing, mix monitoring and sophisticated stereo fold-down. The glue that brings your workflow together, allowing you to deliver in surround and stereo with ease, and without compromise. Produce better downmixes and enhance the downmix compatibility of your surround mixes, with an interface perfectly designed for the task in hand. Halo Downmix is the ideal complement to any surround workflow.
Precise control
Streamline your workflow with versatile downmix balancing and mix monitoring.
- Downmix surround-to-stereo
- Fine-tune surround-to-surround
- Regulate low frequency content
- Maintain dialog clarity
- Control excess ambient sound
- Remove delay artefacts
- Monitor surround and stereo in-place
Expert surround-to-stereo
Using standard downmix coefficients can sometimes lead to unsatisfactory results, particularly if legacy upmixing practices were used for the original surround mix. Halo Downmix quickly mitigates these issues and produces a more coherent stereo mix, controlling excessive diffuse sound from artificial reverb, and removing delay artefacts from the rear channels.
Fine-tune surround-to-surround
Adjust existing 5.1 or 7.1 mixes in surround-to-surround mode. Individual channels, and the balance between direct/diffuse sound can be adjusted to fine-tune or re-balance surround audio where access to the original mix is not possible.
3D Immersive Extension
The 3D Immersive Extension option for Halo Downmix adds the ability to downmix from 7.1.2 - the format used for Dolby Atmos bed tracks.
Parallel workflows
Halo Downmix can also be used in conjunction with the NUGEN Receive plug-in (included) to enable a parallel surround/stereo workflow. This allows for rapid A/B checks between the full surround mix and the stereo downmix.
Flexible, intuitive interface
Halo Downmix provides a highly creative solution for precise downmixing. Intuitive, visual controls for relative levels, timing, and direct/ambient sound balance allow unprecedented fine-tuning, delivering accurate downmixes no longer limited by typical in-the-box processes. Halo Downmix’s highly customisable interface includes both advanced & compact modes, with quick-select ‘in-place’ monitoring of stereo and surround signals, as well as quick linked solo and mute functions at every stage, and clear visualisation of surround energy distribution.
Typical applications
- Surround-to-stereo downmixing
- Surround re-balancing and fine-tuning
- Simultaneous surround/stereo workflow
- Surround restoration
- Stereo production within a surround workflow
- Maintaining dialog clarity in surround
- Removing rear-delay artefacts from legacy upmixing practices

AMB
Produce » Post Production » Audio Post-Production » Digital audio workstations, editing, effects and processing »
For one file, or thousands
AMB is a modular application for Windows and OSX that enables post production facilities to speed up workflows significantly for a range of different tasks, including upmixing and loudness management. AMB provides unprecedented power and control using threaded algorithm processing and multiple processing threads that are addressable for parallel file and queue handling.
Loudness Core Module
Rapid, file based loudness profiling and correction to ITU-R BS. 1770 (CALM) and EBU R128 standards. Watched folders, warning indicators, along with detailed post-mortem log files and graphing are all managed from a flexible intuitive interface. Easily meet multiple/complex delivery requirements through detailed auto-correct conditions, typically processing files at up to 100x realtime.
Upmix Core Module
Core technologies from NUGEN Audio’s acclaimed Halo Upmix plug-in are employed for batch processing, providing high-quality, automatic upmixing to 5.1 and 7.1 from stereo and multi-channel sources, with exact downmix compatibility if required.
Extensions
Our loudness products are compatible with all recommendations and guidance based upon the international standard ITU-R B.S. 1770, revisions 1, 2, 3 and 4 including:
AMB also supports Leq(m) measurement (TASA and SAWA variants).
AMB is a modular application for Windows and OSX that enables post production facilities to speed up workflows significantly for a range of different tasks, including upmixing and loudness management. AMB provides unprecedented power and control using threaded algorithm processing and multiple processing threads that are addressable for parallel file and queue handling.
Loudness Core Module
Rapid, file based loudness profiling and correction to ITU-R BS. 1770 (CALM) and EBU R128 standards. Watched folders, warning indicators, along with detailed post-mortem log files and graphing are all managed from a flexible intuitive interface. Easily meet multiple/complex delivery requirements through detailed auto-correct conditions, typically processing files at up to 100x realtime.
Upmix Core Module
Core technologies from NUGEN Audio’s acclaimed Halo Upmix plug-in are employed for batch processing, providing high-quality, automatic upmixing to 5.1 and 7.1 from stereo and multi-channel sources, with exact downmix compatibility if required.
Extensions
- DynApt
- ProRes & MXF
- Dolby E
- Enterprise
- Queue / Thread expansions
Our loudness products are compatible with all recommendations and guidance based upon the international standard ITU-R B.S. 1770, revisions 1, 2, 3 and 4 including:
- ATSC A/85 (CALM ACT)
- EBU R128
- EBU R128 S1
- ARIB TR-B32
- OP-59
- AGCOM 219/9/CSP
- Portaria 354
- DPP
AMB also supports Leq(m) measurement (TASA and SAWA variants).