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the limiter works, you cant destroy the band with this now

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Kuba 2024-03-22 14:57:24 +01:00 committed by GitHub
parent 2dae591244
commit 7f80d00b21
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1 changed files with 2 additions and 8 deletions
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10
src/pifmrds/fm_mpx.c
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@ -24,8 +24,6 @@
monaural or stereo audio.
*/
// #define ExperimentalLimiter
#include <sndfile.h>
#include <stdlib.h>
#include <strings.h>
@ -74,14 +72,12 @@ float left_max=1, right_max=1; // start compressor with low gain
SNDFILE *inf;
#ifdef ExperimentalLimiter
float limiter(float input, float threshold) {
if (fabsf(input) > threshold) {
return (input > 0) ? threshold : -threshold;
}
return input;
}
#endif
float *alloc_empty_buffer(size_t length) {
float *p =(float *) malloc(length * sizeof(float));
@ -333,10 +329,8 @@ int fm_mpx_get_samples(float *mpx_buffer, int drds, float compressor_decay, floa
if(channels > 1) out_right = 0;
}
#ifdef ExperimentalLimiter
out_left = limiter(out_left, 10); //chatgpt says that its 20db
if( channels > 1 ) out_right = limiter(out_right, 10);
#endif
out_left = limiter(out_left, 0.8); //chatgpt says that its -1.9382 db, amplified a mp3 2000 times, without this it was fucking huge it took like a mhz but with this, about 20khz
if( channels > 1 ) out_right = limiter(out_right, 0.8);
// Generate the stereo mpx
if( channels > 1 ) {