Playback rate subparameters, Track gain subparameters, Extracting curves from sound files – Apple Shake 4 User Manual

Page 285

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Chapter 9

Using the Audio Panel

285

Source Out (seconds)
End point of the clip, listed as seconds.

Start Time (seconds)
Beginning point of the clip, listed as frames.

End Time (seconds)
End point of the clip, listed as frames.

Playback Rate Subparameters

These parameters allow you to specify the rate at which audio plays back, resampling
the audio tracks if necessary to make them conform. Audio playback is only possible on
computers using Mac OS X.

Playback Rate (percent)
Same as playback rate, but allows you to enter a specific cycle rate.

Playback Rate (Hz)
Same as playback rate, but allows you to enter a specific cycle rate.

Track Gain Subparameters

These parameters let you adjust the relative volume and stereo imaging of each audio
track you’ve imported into your project. Mixing the different channels of audio allows
you to adjust the loudness of a voiceover track in relation to a separate background
music track.

Track Gain (dB)
A decibel gain.

Track Pan
Adjusts the stereo effect by panning a track toward or away from one ear.

Track Wide
Controls how much uniqueness exists in the left and right channels, giving a feeling for
wider stereo.

Extracting Curves From Sound Files

The Create Curves subtree gives you control over sampling of the audio to be
converted into a curve. These curves appear in the Globals tab as a local parameter,
and can then be used by other functions in Shake as standard expressions. This is an
extremely powerful feature, and can be used to synchronize nearly any animated
parameter to the waveform of your audio.

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