Hey - one of the industry standard time stretching library is "elastique" by Zynaptiq (licensed, not open source). Used by Ableton, FL Studio etc. If you want

Hey - one of the industry standard time stretching library is "elastique" by Zynaptiq (licensed, not open source). Used by Ableton, FL Studio etc. If you want to peak into some source code - you can look into Rubberband library: https://breakfastquay.com/rubberband/ https://breakfastquay.com/rubberband/ Rubberband is one of the time stretching/pitch shifting algorithms used in Reaper. You can download reaper trial and listen to the results with different parameters to see how you can tweak the code and if that gets any results you're happy with: https://www.reaper.fm/ https://www.reaper.fm/