radio95/fm95
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suprisingly works

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This commit is contained in:
KubaPro010
2026-02-15 12:58:43 +01:00
parent 1053a1a8cc
commit 63976e4a98
3 changed files with 4 additions and 4 deletions
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4
modulation/stereo_encoder.c
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@@ -28,7 +28,7 @@ void init_stereo_encoder(StereoEncoder* st, uint8_t multiplier, Oscillator* osc,
st->pilot_volume = pilot_volume; st->pilot_volume = pilot_volume;
st->audio_volume = audio_volume; st->audio_volume = audio_volume;
#ifdef STEREO_SSB #ifdef STEREO_SSB
init_delay_line(&st->delay, 15); // 7*2+1 init_delay_line(&st->delay, STEREO_SSB*2+1);
#endif #endif
} }
@@ -55,7 +55,7 @@ float stereo_encode(StereoEncoder* st, uint8_t enabled, float left, float right)
float signalx2 = get_oscillator_sin_multiplier_ni(st->osc, st->multiplier * 2.0f); float signalx2 = get_oscillator_sin_multiplier_ni(st->osc, st->multiplier * 2.0f);
#ifdef STEREO_SSB #ifdef STEREO_SSB
float stereo = (crealf(stereo_hilbert) * signalx2cos) - (cimagf(stereo_hilbert) * signalx2); float stereo = (crealf(stereo_hilbert) * signalx2cos) + (cimagf(stereo_hilbert) * signalx2);
return (mid*half_audio) + (signalx1*st->pilot_volume) + (stereo * half_audio); return (mid*half_audio) + (signalx1*st->pilot_volume) + (stereo * half_audio);
#else #else
return (mid*half_audio) + (signalx1*st->pilot_volume) + ((side*signalx2) * half_audio); return (mid*half_audio) + (signalx1*st->pilot_volume) + ((side*signalx2) * half_audio);

2
modulation/stereo_encoder.h
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@@ -1,6 +1,6 @@
#pragma once #pragma once
#define STEREO_SSB #define STEREO_SSB 12
#include <stdint.h> #include <stdint.h>
#include "../dsp/oscillator.h" #include "../dsp/oscillator.h"

2
src/fm95.c
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@@ -493,7 +493,7 @@ void init_runtime(FM95_Runtime* runtime, const FM95_Config config) {
} }
#ifdef STEREO_SSB #ifdef STEREO_SSB
runtime->stereo_hilbert = firhilbf_create(7, 60); runtime->stereo_hilbert = firhilbf_create(STEREO_SSB, 80);
#endif #endif
if(config.preemphasis != 0) { if(config.preemphasis != 0) {