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That should work. Set the corner frequency of each integrator somewhere below the low end of the audio band. Your audio response will roll of at a rate of 40dB/decade. Is that what you want? Why do you want the double integral of audio?I myself was thinking of something like the below pic. But I am not sure if such an op-amp integrator is able to be used to integrate the speech or audio spectrum, Is it?
Any idea please?
That should work. Set the corner frequency of each integrator somewhere below the low end of the audio band.
Your audio response will roll of at a rate of 40dB/decade. Is that what you want? Why do you want the double integral of audio
It won't work as shown since there is no DC path (or reset function) across the feedback capacitors. The output will just go to one rail voltage and saturate. If you add a high resistance between the output and the (-) input it should work.Here's another version of an double integrator using op-amps which uses just one op-amp, But unfortunately It did not work when I simulated it!