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Not if the sound driver is doing its job properly -- it's generally bad form to add harmonics above the Nyquist frequency[1] of the input file. If you do have
by kd5bjo 9y ago
Not if the sound driver is doing its job properly -- it's generally bad form to add harmonics above the Nyquist frequency[1] of the input file. If you do have to deal with a buggy sound driver, you can use any small multiple of the tone frequency as your sampling rate and still have efficient LZW compression.
[1] https://en.wikipedia.org/wiki/Nyquist%E2%80%93Shannon_sampling_theorem https://en.wikipedia.org/wiki/Nyquist%E2%80%93Shannon_sampli...
- jcims 9y agoWell I'll be...TIL - https://imgur.com/a/vr580 https://imgur.com/a/vr580 Actual sawtooth on the left (done at higher bit rate), tone on right is 2khz tone at 8khz sample rate (audacity won't generate tone right at nyquist). Looks like a triangle wave in audacity, but the tone is fairly pure with just a whisper of harmonics, and those are probably from the speaker.