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I have a recording in Audacity that I want to slow down for editing purposes only. When I'm finished editing and I go to export the file, the file should have the original tempo. Yes, I can go to Effect > "Change Tempo" to change the tempo until the song plays as slow as I want it to, but then I'd have to change the tempo back when I'm done editing the song.

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Play-at-Speed

Audacity has a "Play-at-Speed" feature located at Transcription Toolbar. Move the slider to choose a slower or faster speed than normal, then click the green triangle button to left of the slider to play at that speed.

The benefits of changing speed with Transcription Toobar are that you don't have to change the audio data in the track by running an effect, or worry about reverting the change if you want to export the project at its original speed. (source: http://wiki.audacityteam.org/wiki/Change_Speed)

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    Is there way to speed up the playback speed without the pitch increasing? – Geremia Sep 28 '17 at 0:11
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    This slider has no effect for me. (It is simply ignored). Also, your source is dead – Winter May 6 '18 at 22:01
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    @Winter You have to use the special transcription play button right next to the playback speed slider. The main play button will always play at normal speed. – Cin316 May 17 '18 at 0:24

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