On 1/6/2013 10:21 PM, Josh Koffman wrote:
>
> As a result, I'm starting to look at trying to build something
> similar, but not quite as sophisticated. I envision a small box that I
> can connect a headset (or other separate audio input and output
> device) to, and be able to control where my voice routes to, and what
> I'm hearing (ideally both volume and L-R panning). It would connect to
> my radio, controlling its transmit functionality. It would connect to
> my intercom, allowing me to talk and hear in full duplex. It would
> also take my in-ear feed and mix it in with my other audio feeds.

I think you can do everything you want with just  opamps.  I don't think=20
bringing in DSP and microcontrollers are going to be of a benefit and=20
the low end stuff and digitizing, while giving you more control over the=20
output seems like it would be overkill for just mixing and switching=20
signals.

Mark


--=20
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