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muting/volume adjustment for audio out

Honored Contributor II

I'm trying to use Verilog to have my DE2 board play songs, and so far I've managed to figure out how to make different notes/tones, but the one thing I can't seem to figure out is simply how to make the board stop playing sounds.  


Surely there must just be some kind of volume register or an audio reset/mute signal somewhere that I've missed? None of the 8 audio signals that are listed in the DE2 manual suggest that they control volume, as far as I can see, so I'm stumped. 


Thanks everyone!
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