Timeline for Audio frequency sweep spectrogram artifacts... hints?
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| Jul 6, 2017 at 4:17 | comment | added | cJ Zougloub | ... with some interesting hints. I'll try to test your sweep theory in simulation, intuitively I'd be inclined to only see the sweep pattern instantly containing frequencies neighbouring the current frequency. I'll also check if an anti-aliasing filter is here or not, by playing sounds above the Nyquist frequency... somehow. Then about "harmonics", in the case the culprit is not known, the first thing is to look at finding out who's introducing them, player or recorder, by using a third device. | |
| Jun 30, 2017 at 1:15 | history | edited | alephzero | CC BY-SA 3.0 |
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| Jun 30, 2017 at 0:18 | history | edited | alephzero | CC BY-SA 3.0 |
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| Jun 30, 2017 at 0:08 | history | edited | alephzero | CC BY-SA 3.0 |
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| Jun 30, 2017 at 0:01 | history | answered | alephzero | CC BY-SA 3.0 |