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correct fixed volume spectrum scale - release

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Philippe G
2020-12-06 22:52:37 -08:00
parent 90ee59754d
commit 1a3c888f44
1 changed files with 2 additions and 2 deletions
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4
components/squeezelite/display.c
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@@ -877,7 +877,7 @@ static void visu_update(void) {
// convert to dB (1 bit remaining for getting X²/N, 60dB dynamic starting from 0dBFS = 3 bits back-off)
for (int i = visu.n; --i >= 0;) {
visu.bars[i].current = visu.max * (0.01667f*10*log10f(0.0000001f + (visu.bars[i].current >> (visu_export.gain == FIXED_ONE ? 7 : 1))) - 0.2543f);
visu.bars[i].current = visu.max * (0.01667f*10*log10f(0.0000001f + (visu.bars[i].current >> (visu_export.gain == FIXED_ONE ? 8 : 1))) - 0.2543f);
if (visu.bars[i].current > visu.max) visu.bars[i].current = visu.max;
else if (visu.bars[i].current < 0) visu.bars[i].current = 0;
}
@@ -919,7 +919,7 @@ static void visu_update(void) {
}
// convert to dB and bars, same back-off
if (power) visu.bars[i].current = visu.max * (0.01667f*10*(log10f(power) - log10f(FFT_LEN/(visu_export.gain == FIXED_ONE ? 128 : 2)*2)) - 0.2543f);
if (power) visu.bars[i].current = visu.max * (0.01667f*10*(log10f(power) - log10f(FFT_LEN*(visu_export.gain == FIXED_ONE ? 256 : 2))) - 0.2543f);
if (visu.bars[i].current > visu.max) visu.bars[i].current = visu.max;
else if (visu.bars[i].current < 0) visu.bars[i].current = 0;
}