[sdiy] Clipping summing opamp issue..
dlmanley at sonic.net
Fri Jan 29 06:39:58 CET 2010
Tom Wiltshire wrote:
> Alternatively, you could have a rotary switch to select different
> op-amp feedback resistors for different numbers of inputs.
> Then you could just select "3 inputs" or "5 inputs" or whatever, and
> have the right amount of headroom in the mixer.
If you have switching jacks on the input (and aren't using them for
normalization), you could automatically detect when an input was in use
and adjust the gain appropriately. No big, expensive rotary switch...
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