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Minus 140dB is measurable.

Hi.

The very best auido analyser (tagged for USD22,800 a piece) can measure THDN down to -112dB with 2Vrms 1KHz as 0dB reference within 80KHz bandwidth limit.

With FFT (Fast Fourier Transformation) averaging, it can go down to -140dB.

But the arugment is: can such low low distortion level be achievable in commercial recording despite such distortion instrument now being available? Can our ears detect it?

c-J


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  • Minus 140dB is measurable. - cheap-Jack 09:34:14 01/10/07 (0)


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