[sdiy] Mute solution?

Byron G. Jacquot thescum at surfree.com
Thu May 24 19:43:08 CEST 2018


>A while back I had asked about clickless mutes and got some good ideas 
>but could not get anything to work. I am leaning towards using a digital 
>pot as an attenuator. This may seem a bit overkill but it will get 
>things moving. The DS1882 is a dual log dig pot that is unique in that 
>it will handle bipolar audio up to +/- 7 volts. Since my design already 
>has a small processor, it is no problemo to controls these.

Have you been through the iterative mute circuits presented in Doug Self's Small Signal book?

My recollection is that he settles on a series/shunt FET solution, as found in the Soundcraft 6000.  It's also similar to the bypass circuit found on most Boss pedals.

-Byron Jacquot


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