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SoundComposer.ItemAmplitudeSet method |
  
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SoundComposer.ItemAmplitudeSet method |
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Remarks
Modifies the amplitude used to generate a specific item. The current amplitude can be obtained through the SoundComposer.ItemAmplitudeGet method.
This method cannot be used to modify the amplitude of a sliding wave tone: for this purpose you can use the SoundComposer.ItemSlidingWaveToneLimitsSet method.
For further details about sound composing see the the SoundComposer object and the How to compose a sound tutorial.
Syntax
[Visual Basic] control.SoundComposer.ItemAmplitudeSet ( nUniqueId as Long, fAmplitude as Single ) as enumErrorCodes |
[C++] short control.SoundComposer.ItemAmplitudeSet ( long nUniqueId, float fAmplitude ); |
Parameter |
Description |
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nUniqueId |
The unique identifier of the element previously returned by the call to one of the following methods: - SoundComposer.ItemDtmfStringAdd for DTMF items. - SoundComposer.ItemNoiseAdd for noise tone items. - SoundComposer.ItemSlidingWaveToneAdd for sliding wave tone items. - SoundComposer.ItemSoundFileAdd, SoundComposer.ItemSoundFileMemoryAdd, SoundComposer.ItemSoundFileRawAdd, SoundComposer.ItemSoundFileMemoryRawAdd, SoundComposer.ItemSoundFileFromEditorAdd,and SoundComposer.ItemSoundFileFromRecorderAdd for sound file items - SoundComposer.ItemWaveToneAdd for wave tone items. - SoundComposer.ItemSpeechFromStringAdd and SoundComposer.ItemSpeechFromFileAdd for text to speech items. |
fAmplitude |
The item's amplitude. - value 0.0 mutes the sound - values higher than 0.0 and lower than 1.0 attenuate the sound volume - value 1.0 sets the sound at full volume - values higher than 1.0 amplify the sound volume |
Return value
Value |
Meaning |
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Negative value |
An error occurred, check the LastError property value in order to get the error code |
enumErrorCodes.ERR_NOERROR (0) |
The method call was successful |
