Can Audacity multi track record?
Audacity supports recording however many channels the device offers (for example, 24). The number of channels desired can be selected in the Devices tab of Preferences. ... Playback support in Audacity is currently limited to stereo (2 channels), so all multi-channel recordings will be sent to your sound device in stereo.
Can you stretch audio in Audacity?
Importing and Time Stretching an Audio File
You can download it from the Audacity website. ... To access the time-stretching option, choose Effect > Change Tempo. To speed up the audio file, move the slider to the right and click Preview to hear a short clip.