radio95/fm95
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Code Issues Activity

optimize and fix some stuff

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This commit is contained in:
kuba
2026-04-29 13:55:07 +02:00
parent 00219d862a
commit 099d9b97e7
4 changed files with 47 additions and 82 deletions
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modulation/stereo_encoder.c
+9 -6
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@@ -5,7 +5,7 @@ void init_stereo_encoder(StereoEncoder* st, uint8_t stereo_ssb, uint8_t multipli
st->multiplier = multiplier;
st->osc = osc;
st->pilot_volume = pilot_volume;
st->audio_volume = audio_volume;
st->audio_volume = audio_volume * 0.5f;
if(stereo_ssb) {
init_delay_line(&st->delay_pilot, stereo_ssb*2);
init_delay_line(&st->delay, stereo_ssb*2);
@@ -15,7 +15,10 @@ void init_stereo_encoder(StereoEncoder* st, uint8_t stereo_ssb, uint8_t multipli
float stereo_encode(StereoEncoder* st, uint8_t enabled, float left, float right, float *audio) {
float mid = (left+right) * 0.5f;
if(!enabled) return mid * st->audio_volume;
if(!enabled) {
*audio = mid * 2.0f * st->audio_volume;
return 0.0f;
}
if(st->stereo_hilbert) mid = delay_line(&st->delay, mid);
@@ -33,12 +36,12 @@ 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);
*audio = (mid*st->audio_volume);
*audio = mid * st->audio_volume;
if(st->stereo_hilbert) {
float stereo = (crealf(stereo_hilbert) * signalx2) - (cimagf(stereo_hilbert) * signalx2cos);
*audio += (stereo * st->audio_volume);
} else *audio += ((side*signalx2) * st->audio_volume);
return (signalx1*st->pilot_volume);
*audio += stereo * st->audio_volume;
} else *audio += (side*signalx2) * st->audio_volume;
return signalx1 * st->pilot_volume;
}
void exit_stereo_encoder(StereoEncoder* st) {