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Hi,
I am looking for a 2 input mixing audio amplifier.
When "input A" has a signal, Amplifier should not amplify Signal B.
The amplifier is used in car and should be low noise.
Regtards
For example Input B is an audio of a radio. And output is Signal B, which is amplified. When Input A, which is Signal from a Microphone, is active, then the Radio signal should be cut off and output should only be Signal A.
Found those in a few minutes using Google. You can use the output from the VOX to turn on a transistor connected to the 'radio' input which will 'ground' that input, or LED/LDR, or ....................
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