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Search for voice coding. That's how many voice coding algorithms work, you try to find a digital filter that generates a sound that is as close as the original
by carlosf 5y ago
Search for voice coding.
That's how many voice coding algorithms work, you try to find a digital filter that generates a sound that is as close as the original according to a perception based metric, then transmit the filter coefficients.
I don't remember the exact details, but if I'm not mistaken generating this sort of metric is really time consuming.
- crazygringo 5y agoThanks! That's definitely along the same lines, although that's for the special case of only a single fundamental frequency (with overtones). And I'm not sure it uses deconvolution -- I've heard of maximum likelihood estimation being used, in order to get a single frequency, though the ideas are closely related. Using deconvolution would be more for the purposes of cleaning up a general-purpose spectrogram for human eyes -- for analysis and for sound editing, whether a single voice or a band of several instruments.