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Přemysl Eric Janouch 2021-07-07 17:55:44 +02:00
parent 66bc3f1c2c
commit 14ba637d4b
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GPG Key ID: A0420B94F92B9493
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nncmpp.c
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@ -781,6 +781,7 @@ spectrum_init (struct spectrum *s, char *format, int bars, struct error **e)
// having the amount of bins be strictly a factor of Nyquist / 20 (stemming // having the amount of bins be strictly a factor of Nyquist / 20 (stemming
// from the equation 20 = Nyquist / bins). Since log2(44100 / 2 / 20) > 10, // from the equation 20 = Nyquist / bins). Since log2(44100 / 2 / 20) > 10,
// it would be fairly expensive, and somewhat slowly updating. Always. // it would be fairly expensive, and somewhat slowly updating. Always.
// (Note that you can increase window overlap to get smoother framerates.)
double audible_ratio = s->sampling_rate / 2. / 20000; double audible_ratio = s->sampling_rate / 2. / 20000;
s->bins = ceil (necessary_bins * MAX (audible_ratio, 1)); s->bins = ceil (necessary_bins * MAX (audible_ratio, 1));
s->useful_bins = s->bins / 2; s->useful_bins = s->bins / 2;