Applies Amplify effect to the selected part of an audio file. Changes the amplitude of the input audio file.
| Parameter |
Description |
Rate |
An amplification coefficient in percent. If Rate = 100, then audio array isn't changed. If Rate > 100 then the volume of audio is increased, otherwise it is decreased. |
 Tip
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You can select a part by mouse.
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This method is volume control by controlling of the amplitude of the signal by varying its attenuation. However, an active volume control will have the ability to increase the volume (i.e.. amplify the input signal) as well as attenuating the signal.
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Volume controls are useful for placing between effects, so that the relative volumes of the different effects can be kept at a constant level. However most, if not all effects have volume controls built-in, allowing the user to adjust the volume of the output with the effect on relative to the volume of the unaffected signal (when the effect is off).
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