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适用于以下浏览器
Realtime audio processing and looper for music practice. + Pitch shifting- change audio and video pitch up or down 12 semi-tones, in whole or fractional semi-tones. + Time stretching - Change the speed of online videos and some streaming music sites from 25% to 250% of original speed. + Change the speed of any other web audio from 25% to 100% of original speed. + Set loop points and practice sections over and over. + Tested on YouTube, Vimeo, YouTube Music, Spotify, Apple Music, Pandora, Deezer, Google Play Music. + Completely free. + Doesn't require intrusive permissions, only captures the audio on the active tab when you click on the extension icon.