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Algorithms for time stretching/pitch shifting - Music ...
https://music.stackexchange.com/questions/79596/algorithms-for-time-stretching-pitch-shifting
I want to change the pitch of an audio track and try to keep the highest quality possible, so when I click on processor algorithm setup, I have few options : Standard method (time stretches and pi...
Time Stretching And Pitch Shifting of Audio Signals – An ...
http://blogs.zynaptiq.com/bernsee/time-pitch-overview/
Typically, good algorithms allow pitch shifting up to 5 semitones on average or stretching the length by 130%. When time stretching and pitch shifting single instrument recordings you might even be able to achieve a 200% time stretch, or a one-octave pitch shift with no audible loss in quality. 2.
Programmatically increase the pitch of an array of audio ...
https://stackoverflow.com/questions/5156192/programmatically-increase-the-pitch-of-an-array-of-audio-samples
You can change the pitch, as well as make the sound play faster or slower by the same ratio, by just resampling the signal using properly filtered interpolation. Just move each sample point, instead of by 1.0, by floating point addition by your desired rate change, then filter and interpolate the data at that point.
Change Pitch Online - MP3 Cut
https://mp3cut.net/change-pitch
Audio Pitch Shifter supports all popular audio formats and works with files up to 10 GB. Upload your file and start editing without compressing or reformatting it. Upload your file and start editing without compressing or reformatting it.
Change music speed and pitch online | AudioSpeedChanger.com
https://www.audiospeedchanger.com/
The conversion process involves four steps: Step 1: Select song. Select a local music file, a file from a website, or a file from OneDrive or DropBox. The converter... Step 2: Speed and pitch. Select the playback speed change and the pitch change. …
Improve tempo/pitch change algorithms · Discussion …
https://github.com/audacity/audacity/discussions/1524
LWinterberg. Aug 24, 2021. Collaborator. Background. Currently, Audacity uses a Waveform Similarity Overlap and Add algorithm (WSOLA, via Soundtouch) for fast tempo/pitch change and SBSMS for "high quality" pitch/tempo change (but which is an order of magnitude and a half slower). Neither supports real-time capabilities (probably only relevant for pitch change), so …
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