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limit voices to working number

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This commit is contained in:
Jack Humbert 2019-05-28 01:04:58 -04:00
parent 9632b3379f
commit dfb401b950
1 changed files with 6 additions and 3 deletions
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9
quantum/audio/audio_arm.c
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@ -128,14 +128,17 @@ static void end_cb1(DACDriver * dacp, dacsample_t * samples, size_t pos) {
//} //}
uint16_t sample_sum = 0; uint16_t sample_sum = 0;
for (int i = 0; i < voices; i++) { int working_voices = voices;
if (working_voices > 3)
working_voices = 3;
for (int i = 0; i < working_voices; i++) {
dac_if[i] = dac_if[i] + ((frequencies[i]*(float)DAC_BUFFER_SIZE)/(float)DAC_SAMPLE_RATE*1.5); dac_if[i] = dac_if[i] + ((frequencies[i]*(float)DAC_BUFFER_SIZE)/(float)DAC_SAMPLE_RATE*1.5);
while(dac_if[i] >= DAC_BUFFER_SIZE) while(dac_if[i] >= DAC_BUFFER_SIZE)
dac_if[i] = dac_if[i] - DAC_BUFFER_SIZE; dac_if[i] = dac_if[i] - DAC_BUFFER_SIZE;
sample_sum += dac_buffer[(uint8_t)round(dac_if[i]) % DAC_BUFFER_SIZE] / voices; sample_sum += dac_buffer[(uint8_t)round(dac_if[i]) % DAC_BUFFER_SIZE] / working_voices;
} }
if (voices > 0) { if (working_voices > 0) {
samples[0] = sample_sum; samples[0] = sample_sum;
} else { } else {
samples[0] = DAC_SAMPLE_MAX; samples[0] = DAC_SAMPLE_MAX;