SoundTouch allows you to add audio effects on a Call.

SoundTouch Request URL

To add audio effects, make an HTTP POST to the below URL with the required parameters:

http://{BASEURL}/{ApiVersion}/SoundTouch/

POST Parameters

Required Parameters

You must POST any of the following parameters:

Parameter Description
CallUUID A unique identifier of the call earlier returned by Plivo to which the action should be applied.
Optional Parameters

You may POST the following parameters:

Parameter Description
AudioDirection ‘in’ or ‘out’. Change ‘in’coming or ‘out’going audio stream. (default ‘out’)
Audio Effects Parameters

You must POST one or more of the following parameters:

Parameter Description
PitchSemiTones Adjust the pitch in semitones, values should be between -14 and 14, default 0
PitchOctaves Adjust the pitch in octaves, values should be between -1 and 1, default 0
Pitch Set the pitch directly, value should be > 0, default 1 (lower = lower tone)
Rate Set the rate, value should be > 0, default 1 (lower = slower)
Tempo Set the tempo, value should be > 0, default 1 (lower = slower)

Response Parameters

When you initiate a RESTAPI, Plivo responds with the standard parameters as mentioned here. No additional parameters are sent.

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