Logic controlled mute
I am using an ADAU1701 and would like to mute the audio signal within Sigma Studio at the output depending on the status of logic and a few GPIOs. I am not sure what block to use that could be controlled by the output of a logic block or a GPIO input. Can someone help?
Thanks,
Bruce
Audio Signal Processors
mute
logic
SigmaDSP Audio Processors
gpio
adau1701
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You can use one of the volume controls with an external control (in library folder Volume Controls\Adjustable Gain\Ext Control). This block has an input pin for a volume level. If your logic input switches between 0 and 1 in 5.23 format, then the volume level will smoothly ramp between full-scale and muted.
If you don't need the slew ramp, you can just use a multiply block. 0 is mute, 1.0 in 5.23 is unmute.
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