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Decimation instead of averaging.

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Troy
2024-03-03 15:29:43 -05:00
parent f46d7f197f
commit ed897968b9
1 changed files with 8 additions and 7 deletions
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15
usermods/audioreactive/audio_source.h
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@@ -382,14 +382,15 @@ class I2SSource : public AudioSource {
}
if (_sampleRate == 96000) {
int final_samples = num_samples/4;
for (int i = 0; i < final_samples; i++) {
newSamples[i] = 0;
for (int x = 0; x < 4; x++) {
newSamples[i] += newSamples4x[(i*4)+x]/4;
}
for (int i = 0; i < num_samples/4; i++) {
// Code for averaging. Decimation seems fine too.
// newSamples[i] = 0;
// for (int x = 0; x < 4; x++) {
// newSamples[i] += newSamples4x[(i*4)+x]/4;
// }
newSamples[i] = newSamples4x[(i*4)]; // every 4th sample, skip the rest.
}
num_samples = final_samples;
num_samples /= 4; // back to 512 samples
}
// Store samples in sample buffer and update DC offset