Can't Turn Off the Audio!

[Nicnak044]

Im trying to stream me drawing on photoshop, and I'd like to turn off the sound, but there is no option to do so.

This is what I have in the audio tab:
Source: (Defult input device, IDT Audio, Device Audio)
Target Bit Rate
Sampling Rate
Channels
Audio Encoder.

Please tell me what I have to do to mute the sound!
~Thanks!

[davidaron]

If you are using Procaster, go to Preferences -> audio, then click on "mute" to the right of the audio settings.