Audio Amplifier circuit refuses to work

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hi!

i want build clap switch, somehow doesnt seem work.

at beginning tried design: *click*

i checked several times, doesnt @ all.

then tried several other circuits this one or this one. none of them works. in every circuit used several different lm358s eliminate them cause. on top of that, 4 different microphones used.

the circuits soldered , built on breadboards, no improvement ever

the "amlified" signal looks this:

and "peaks" (which under 10mv) occur when tapping hard on mic. other stuff noise , changes time. average voltage level jumps , down 100mv or so, too.



what solution problem? ran out of ideas...

cheers, konrad

basically signal not big enough software work correctly.

quote
on top of that, 4 different microphones used.
now these microphones different types or different microphones of same type?

some microphones require supply voltage, electret microphone others crystal microphone not require this. have match input circuit microphone type have.

also sure using right value of resistor in amplifier's feedback circuit. 1m resistor brown black green.

can supply photograph of amplifier along circuit of supposed be.


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