Sorry for the missing tag lead. Here it goes again:

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Hello, Gods' oracle.

One question:

I will be using the 567 filter IC to separate 12kHz signals from regular
audio. The problem is that the 12kHz has a much lower amplitude. Should I
amplify and then insert the full audio mixture to the 567, or will it be
able to detect a much lower signal, at the right frequency ?

Thanks in advance.


Pedro.

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