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Tempo ► How tempo changes affect audio clips ► How tempo changes affect audio clips

An audio clip’s Time Base property determines what happens to the clip’s start time when you change the project tempo. You specify the time base in the Clip Properties Inspector’s Properties section (see Properties Inspector - Clip Properties and Properties section). The two Time Base options are as follows:
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Musical (M:B:T). If the clip is set to the Musical time base, the clip’s M:B:T position stays constant, and its Absolute (SMPTE) position shifts.
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Absolute (SMPTE). If the clip is set to the Absolute (SMPTE) time base, its Absolute position stays constant, and its M:B:T position shifts.
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Conform the audio to the project tempo. With this solution you stretch the audio so it follows the project tempo. For details, see Configuring audio clips to follow tempo changes.
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Conform the project tempo to the audio. With this solution you create a tempo map that matches the audio. The metronome click will perfectly follow along with the audio. Use this solution if you want to retain the recorded human performance variations. For details, see Setting the project tempo from an audio recording.
3.
Click the Clip Follows Project Tempo button on the AudioSnap palette.
The clip(s) displays the Auto Stretch icon , and is synchronized to the project’s tempo map (including future tempo changes). The drop-down list lets you specify at which resolution the clip should follow tempo changes. The options are as follows:
Note: The Clips follow project tempo command only works on clips that are configured to use musical time (the Time Base property is set to Musical in the Clip Properties Inspector).
Figure 143. AudioSnap palette
Alternatively, you can enable Follow Project Tempo in the Clip Properties Inspector:
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In the Clip Properties Inspector’s AudioSnap section, select Enable, then select Follow Project Tempo.
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Under Follow Options, specify at which resolution the clip should follow tempo changes:
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In the Clip Properties Inspector’s Groove Clip section, select Stretch to Tempo.
The audio clips stretch or shrink to fit the project’s tempo. Cakewalk uses the Beats in Clip and Original Tempo parameters to make the change.
Audio clips that do not have Stretch to Tempo enabled change in size when moved to a part of your project that has a different tempo.
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