The quality and usefulness of a loop is dependent on how far it can be pitch-shifted and time-stretched. When building a loop-based composition, if a musical loop does not match the key and tempo of the song, it must be pitch-shifted and time-stretched so it does.

In many loop-based compositions, you can clearly hear the artifacts of poor time-stretching and pitch-shifting, including repeated percussion hits, flanger and phaser effects, and granular distortion.

iZotope Omega opens a new range of musical possibilities allowing loops to be time-stretched and pitch-shifted further without artifacts.

For DJ applications, iZotope Omega allows for a highly optimized way to automate the slow tempo and pitch-shift necessary to beatmatch and key match a set.

Software virtual instruments struggle with the tradeoff of larger libraries and performance. One way to increase the realism of a instrument is to include every variation of performance style, dynamic, acoustic space, etc. for every note. As the number and size of samples increase, manufacturers must make compromises on the number of voices that can sound at one time. Though computer memory is always getting cheaper, not all users can afford to pack their systems with gigabytes of RAM. So, some users are left to use a subset of a sample library due to practical constraints.

To address the problem of enormous audio libraries, iZotope Omega is designed to provide quality pitch-shifting with merely a few processor multiplies per sample. The higher quality shifting allows manufacturers to include a subset of the audio samples and greatly reduce the memory footprint of a sample library.

Listen under the Sample Playlist for the original and pitch-shifted samples to see how Omega can optimize the size of a sampled instrument library. iZotope Omega is carefully designed to preserve the transient attacks, sound stage, and sustained material.

Additionally, iZotope Omega provides full automation allowing for realtime detune and portamento effects.

To obtain efficient operation at runtime, iZotope Omega allows a manufacturer to prescan and store analysis data on all audio samples. Leaving only the necessary steps at runtime, this pre-analysis enables Omega to be both high quality and fast.

Optimized for high voice counts and minimal realtime processing overhead


Pre-analysis phase further optimizes realtime performance


Time-stretch between 12.5% and 800%


Pitch-shift from -36 to +36 semitones


Fully automate pitch- and time-stretch


Extensive formant correction and control


Maintain phase coherency and sound stage


Supports sampling rates up to 192 kHz

Loop-based instruments, host applications


Virtual instrument samplers


DJ applications for tempo and key matching


Any application or device requiring high performance pitch-shifting and time-stretching

For more information on incorporating iZotope's technology into your application or device, please submit your contact information and a short description of the project.

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