actually, that part is correct. John-Robie is trying to calculate the amplitude every 8000 samples. Assuming it's an 8kHz sample rate on the mic, that would be related to the power for the last second of sound, which is quite reasonable thing to do.

In reply to Re^2: Measuring the sound level (dB(A)) with PERL by pryrt
in thread Measuring the sound level (dB(A)) with PERL by John-Robie

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