Log InCreate An Account

Tachyon Audio Time Stretch

Tachyon Audio Time Stretch
Tachyon Audio Time Stretch
What is it?
UtilityStand-alone utility / application
Operating System Availability
Operating System Latest Version
System Requirements
Windows 11, 10, 8, 7 (SP1), 64-bit.
Minimum 500 MB RAM, 4 GB RAM recommended
System Requirements
Mac OS X 10.11 "El Capitan" or later (64-bit Intel), or MacOS 11 "Big Sur" or later (Apple M1).
Minimum 500 MB RAM, 4 GB RAM recommended
License & Installation Method
Instant (Serial Number)
Tell Me More
For related news items, downloads and more please see the full KVR product page for
Tachyon Audio Time Stretch

Tachyon Audio Time Stretch is a stand-alone application that does only one thing: time stretching audio files.

Tachyon Audio Time Stretch is designed for the highest possible quality rather than for speed. A fast CPU is required, and only off-line processing is possible.


  • Time stretch any music, track, speech or sound by any amount between 4 times slower and 4 times faster.
  • Professional-grade audio quality, based on state-of-the-art algorithms.
  • Support mono, stereo and multi-channel (5.1, 7.1) audio files. Fully preserve the stereo / spatial field.
  • Load and save WAVE (*.wav), AIFF/AIFC (*.aiff, *.aifc) and AU Sun/NeXT (*.au) audio files, in PCM 16-bit / 24-bit integer, or in 32-bit IEEE floating point format. Also load FLAC, OGG, OPUS, MP3 and M4A (AAC/ALAC) files.
  • Support sampling rates from 8 kHz to 384 kHz.
  • The time stretching factor can be specified in many ways: length change, speed change, length from/to, tempo from/to, video FPS from/to, etc.
  • Accurate to a single sample (with sub-sample accuracy internally).
  • Transform multiple audio files simultaneously on multi-core computers.
  • Four quality settings (default 4 - highest quality) are available. Real-time processing speed on most computers with quality setting 1 (lowest).
  • Integrated mini player to preview the result before it is fully transformed.

More information, audio examples and demo version at https://www.tachyon-sonics.com/tats/index.html.

User Reviews Average user rating of 5.00 from 2 reviews Add A Review
Tachyon Audio Time Stretch

Reviewed By tchenrezimusic [all]
December 1st, 2023
Version reviewed: 1.0.8 on Windows

Best time stretch algorithm that I have found, sounds natural on different sources.

Saves me a lot of time.

Read Review
Tachyon Audio Time Stretch

Reviewed By cheakypawl [all]
April 13th, 2023
Version reviewed: 1.0.7 on Mac

Quite incredible. I feel like I've stumbled upon some hidden holy grail. Speeding up is relatively uniform across most time-stretchers, losing material, or making things smaller is easier, you have the material to play with - but slowing down is a whole other calculation. Making more of something from less takes some high level of processing, and some delicacy when it comes to transients. Bear in mind this is not real-time (the developer would be a millionaire from this if it were so), this is calculated, and sometimes it take up to 5-10 times longer than the file, but the results are nothing short of impressive. Don't take my word for it, the demo give you a 30 second window to play with. Find a track with short delicate top end percussion and hear how they are kept (more) intact, compared to pretty much any other off line stretcher I have used. Extremely high quality. Don't tell everyone, I want it to myself. I know of one other time stretch app that works a little better, but for the money, this should be more known.

Read Review

Customers who like Tachyon Audio Time Stretch also viewed...

Products similar to Tachyon Audio Time Stretch...

More products by Tachyon Sonics...