From e07b35c5c6377ca903b0096730f422aa97b396ae Mon Sep 17 00:00:00 2001 From: KubaPro010 Date: Mon, 30 Dec 2024 16:09:31 +0100 Subject: [PATCH] slight changes --- stereo_coder.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/stereo_coder.c b/stereo_coder.c index acbd95e..11ce152 100644 --- a/stereo_coder.c +++ b/stereo_coder.c @@ -8,11 +8,11 @@ #define INPUT_DEVICE "real_real_tx_audio_input.monitor" #define OUTPUT_DEVICE "alsa_output.platform-soc_sound.stereo-fallback" #define BUFFER_SIZE 512 -#define CLIPPER_THRESHOLD 0.5 // Adjust this as needed +#define CLIPPER_THRESHOLD 0.45 // Adjust this as needed #define MONO_VOLUME 0.5f // L+R Signal -#define PILOT_VOLUME 0.025f // 19 KHz Pilot -#define STEREO_VOLUME 0.275f // L-R signal +#define PILOT_VOLUME 0.02f // 19 KHz Pilot +#define STEREO_VOLUME 0.4f // L-R signal volatile sig_atomic_t to_run = 1; @@ -140,10 +140,10 @@ int main() { signal(SIGINT, stop); signal(SIGTERM, stop); - int16_t input[BUFFER_SIZE*2]; - float left[BUFFER_SIZE], right[BUFFER_SIZE]; - float mpx[BUFFER_SIZE]; - int16_t output[BUFFER_SIZE]; + int16_t input[BUFFER_SIZE*2]; // Input from device + float left[BUFFER_SIZE], right[BUFFER_SIZE]; // Audio + float mpx[BUFFER_SIZE]; // MPX + int16_t output[BUFFER_SIZE]; // Output to device while (to_run) { if (pa_simple_read(input_device, input, sizeof(input), NULL) < 0) { fprintf(stderr, "Error reading from input device.\n"); @@ -161,9 +161,9 @@ int main() { float mono = (current_left + current_right) / 2.0f; float stereo = (current_left - current_right) / 2.0f; - mpx[i] = mono*MONO_VOLUME + - (stereo * stereo_carrier)*STEREO_VOLUME + - (pilot * PILOT_VOLUME); + mpx[i] = mono * MONO_VOLUME + + pilot * PILOT_VOLUME + + (stereo * stereo_carrier) * STEREO_VOLUME; } float_array_to_s16le(mpx, output, BUFFER_SIZE);