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Amplify(clip, float amount1 [, ...])

Amplify(clip, float left, float right)

AmplifydB(clip, float amount1 [, ...])

AmplifydB(clip, float left, float right)

Amplify multiplies the audio samples by amount. You can specify different factors for each channel.

If there are more volumens than there are channels, they are ignored. If there are fewer volumes than channels, the last volume is applied to the rest of the channels.

AmplifydB is the same except values are in dB. You can use negative dB values (or scale factor between 0 and 1) for reducing volume. Negative scale factors will shift phase by 180.

Audio samples are converted to 16 bits in the process.

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Document last modified Sun, 30 Nov 2003 15:13:09