switching at zero cross/noiseless switching

Caloroso, Michael E CalorosoME at corning.com
Wed Nov 10 22:13:35 CET 1999

> I'm wondering if there's anyone out there who can point me towards a
> resource on switching audio at the zero crossing.  Or for that matter,
> other techniques for noiseless switching at speed.
The ARP ProSoloist uses a technique that might work in your application.

Audio outputs are switched in and out by tying them to the open-collector outputs of ROMs.  The collector shunts the audio to ground when the transistor is enabled, effectively turning off the output.

Opinions (and mistakes) expressed herein are my own and not those of my employer.

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