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common code: Make preemphasis 0 dB @ 1000 Hz

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This commit is contained in:
Andreas Eversberg
2016-04-25 18:14:04 +02:00
parent 16acdbf59d
commit 0c99848120
2 changed files with 5 additions and 3 deletions
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6
src/common/emphasis.c
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@@ -35,11 +35,11 @@ int init_emphasis(emphasis_t *state, int samplerate)
return -1;
}
factor = 0.95;
factor = 0.97;
state->p.factor = factor;
state->p.amp = samplerate / 48000.0 * 4.0; /* mysterious 48000 */
state->p.amp = samplerate / 6350.0;
state->d.factor = factor;
state->d.amp = 1.0 / (samplerate / 48000.0 * 4.0); /* mysterious 48000 */
state->d.amp = 1.0 / (samplerate / 6350.0);
return 0;
}