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Audio Editor by BIAS
$129 / $599 / $1199
Peak by BIAS is an Audio Plugin Host for macOS. It can host VST Plugins and Audio Units Plugins.
Can Host
Can Host
Sample Formats
Loads and/or Saves
Copy Protection
Online Activation (Challenge / Response)
My KVR - Groups, Versions, & More
13 KVR members have added Peak to 5 My KVR groups 14 times.
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+2 in private groups

KVR Rank

Overall: 5524   3970

30-Day: 3735; 7-Day: 2949; Yesterday: 1909

BIAS Peak is a stereo audio editing, processing, and mastering application for the Macintosh.


  • Fastest & most intuitive waveform editing available on any platform.
  • Displays multiple documents simultaneously.
  • Multithreaded processing and compatible with multi-processor (MP) Macs.
  • Unlimited Undo/Redo with independent graphic edit history for each audio document.
  • User-definable display size & color.
  • Record audio directly or import all QuickTime-compatible audio formats.
  • Supports built-in Mac I/O, plus OS X and Core Audio-compatible audio hardware.
  • Easily create, edit, read & write region, loop & reference markers.
  • Automated Redbook (Disk-at-Once /DAO) CD burning direct from the Playlist as well as any audio document window.
  • Full DSP (Digital Signal Processing) Toolset, including Fade In/Out, Normalize, Gain Envelope, ImpulseVerb Reverse, Invert, Harmonic Rotate. Rappify, ultraaccurate Pow-r dithering, Convolve, Reverse Boomerang, Convert sample rate, Mix, Change Pitch, Panner, Amplitude Fit, Find Peak, Bit Usage Graph & more.
  • Sophisticated playlist featuring advanced crossfades, real-time effects, & Nudge Regions window.
  • Bit depths up to 32-bit.
  • Sample rates up to 10Mhz.
  • Master Volume Fader.
  • Advanced looping tools- including the highly acclaimed Loop Surfer, LoopTuner, Crossfade Loop & Guess Tempo.
  • AudioUnit Plug-in support.
  • VST plug-in support.
  • Over 25 VST audio effects plug-ins bundled free.
  • Includes new BIAS Sqweez procaliber compressor/limiter VST plug-in and BIAS Freq 4-band paragraphic EQ.
  • Advanced VST audio effects routing matrix via integrated Vbox support (Vbox SE included).
  • Automated Repair Clicks & Remove DC Offset.
  • ImpulseVerb - instantly applies recorded room ambiance to any audio document.
  • Supports all SMDI hardware samplers.
  • Reads/writes multiple file formats - even MP3 and AAC (MP4).
  • Full-featured batch processing options - including Export Regions & much more.
  • Change Duration DSP function allows high-quality time compression/expansion without affecting pitch.
  • Recording notepad & timer.
  • Threshold function automatically divides files into discrete regions based on amplitude.
  • Trigger playback & cueing of up to 10 audio documents using Mac keyboard.
  • Dynamically resizable and customizable toolbar & keyboard shortcuts.
  • Advanced QuickTime movie & DV (digital video) clip support features better-than-frame accurate synchronization of audio & movie playback, even during selection & scrubbing.
  • Supports DV standard (16-bit/48kHz) without additional hardware.

Peak is available in several different versions, a comparison chart is available here.

Latest User Reviews

Average user rating of 1.00 from 1 review

Reviewed By ipbrjt-3
September 26, 2017

PeakPRO WAS a great program, 9/10, and I had used it extensively for audio editing and CD mastering. It all came to a crashing halt in 2012.

A major upgrade of PeakPRO was slated to come out years ago, and I even pre-paid for the next version (which promised multitrack editing which would have made it a 10/10- since this was based on the old-fashioned two track editing Soundedit16/SoundDesigner model), but the company "ceased operations" suddenly with no warning. I even called and talked to some folks, as well as emailed them and got borderline rude responses assuring me it was going to happen (it had been delayed for almost a year).

I'm not entirely sure WHAT the hell happened, but there were many rumors about fraud and financial skimming, inter-office-affairs, sex with dead animals, etc, so one cannot be sure what they read is true (a disease of our current times, for sure).

If you are interested in this program, it no longer is being developed and distributed. Although if you can get your hands on a free copy, and codes, it does still work- I am using it on El Not-Work-itan, with a few quirks. It amazes me that it still fires up. I also know that they have kept a website up for re-registering their products, which is mighty "big" of them.


As for the chunk of change they owe me, I'll probably never get it back. Its on their conscience- which must be heavy since they completely abandoned their users. Such is the warning tale of a once cool company gone completely sour.

Read Review

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Comments & Discussion for BIAS Peak

Discussion: Active
27 September 2017 at 8:54pm

I'm still using Bias Peak Pro!!.

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