Nugen Audio

NUGEN Audio - ISL 2

Mastering & post production


ISL 2 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 ‘Mastered for iTunes’ true-peak detection), and is suitable for the control of audio for Post Production and Broadcast applications. True-peak limiting can also be used to ensure that down-stream 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

For music production

Let ISL take care of your mastering for today's music delivery services (Apple Music, Spotify, Tidal etc.) The risk of distortion from down-stream codec conversion (mp3, AAC etc.) is eliminated with ISL on the master bus.

Mix and master with confidence that your audio will be delivered the way you intend, without downstream distortions introduced by inter-sample clip reconstruction errors.

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 Post 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.

Product Features

Transparent True Peak Limiting
  • Adjust adjustable look ahead
  • Two stage, non-linear adaptive algorithm
  • Adjustable channel linking
  • Includes iTunes True Peak option
Standard compliant
  • Compatible with ITU-R BS. 1770
  • True brick-wall limited output
  • Mono through 7.1 surround compatible
Clear, intuitive operation
  • Intelligent adaptive algorithm
  • Clear metering
  • Multiple diagnostic listen modes
Reliable metering
  • Accurate, standard compliant I/O metering
  • Precise direct numeric maxima
  • Adjustable ballistics and colour splits
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System Requirements

Protection Type
  • Serial Number (no Dongle required)
Available formats
  • AAX (64-bit only)
  • VST
  • VST3
  • AU
  • AudioSuite (64-bit and 32-bit)
Minimum System Specification
  • Mac OSX 10.7.x, 512 MB RAM
  • Windows XP or above, 512 MB RAM
  • Surround capable DAW/NLE

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