cesco/bassofono
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refactor

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This commit is contained in:
nzasch
2022-01-01 02:10:06 +01:00
parent 8fe05fdf5e
commit 9a2f5c0069
11 changed files with 344 additions and 28 deletions
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4
codice/Core/Src/rx.c
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@@ -250,8 +250,8 @@ void audio_filter_init(void){
void audio_filter_generate_coeffs(int32_t *Coeffs, uint32_t freq, uint32_t bw, uint8_t beta){
double FPCoeff[AUDIO_FILTER_TAP_NUM + 1];
double normalized_center_freq, normalized_bw, fp_beta;
normalized_center_freq = (double)(freq*2)/DAC_SAMPLE_RATE;
normalized_bw = (double)(bw*2)/DAC_SAMPLE_RATE;
normalized_center_freq = (double)(freq*2)/RX_DAC_SAMPLE_RATE;
normalized_bw = (double)(bw*2)/RX_DAC_SAMPLE_RATE;
fp_beta = beta/4;
RectWinFIR(FPCoeff, AUDIO_FILTER_TAP_NUM, firBPF, normalized_center_freq, normalized_bw);
FIRFilterWindow(FPCoeff, AUDIO_FILTER_TAP_NUM, wtKAISER, fp_beta);