Spectrum analyser: add some useful comments
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4
nncmpp.c
4
nncmpp.c
@ -569,6 +569,9 @@ item_list_resize (struct item_list *self, size_t len)
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// --- Spectrum analyzer -------------------------------------------------------
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// See http://www.zytrax.com/tech/audio/equalization.html
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// for a good write-up about this problem domain
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#ifdef WITH_FFTW
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struct spectrum
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@ -809,6 +812,7 @@ spectrum_init (struct spectrum *s, char *format, int bars, struct error **e)
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if (s->samples < 1)
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s->samples = 1;
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// XXX: we average the channels but might want to average the DFT results
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if (s->bits == 8) s->decode = spectrum_decode_8;
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if (s->bits == 16) s->decode = spectrum_decode_16;
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