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C-Netz: Add option to control voice deviation

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This commit is contained in:
Andreas Eversberg
2019-01-02 15:58:34 +01:00
parent f1292a985b
commit 1321f66456
5 changed files with 17 additions and 9 deletions
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7
src/cnetz/dsp.c
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@@ -42,8 +42,7 @@
#define MAX_DEVIATION 4000.0
#define MAX_MODULATION 3000.0
#define DBM0_DEVIATION 4000.0 /* deviation of dBm0 at 1 kHz */
#define FSK_DEVIATION (2500.0 / DBM0_DEVIATION) /* no emphasis */
#define FSK_DEVIATION (2500.0 / dbm0_deviation) /* no emphasis */
#define MAX_DISPLAY 1.4 /* something above dBm0, no emphasis */
#define BITRATE 5280.0 /* bits per second */
#define BLOCK_BITS 198 /* duration of one time slot including pause at beginning and end */
@@ -81,7 +80,7 @@ static void dsp_init_ramp(cnetz_t *cnetz)
}
/* Init transceiver instance. */
int dsp_init_sender(cnetz_t *cnetz, int measure_speed, double clock_speed[2], enum demod_type demod)
int dsp_init_sender(cnetz_t *cnetz, int measure_speed, double clock_speed[2], enum demod_type demod, double dbm0_deviation)
{
int rc = 0;
double size;
@@ -90,7 +89,7 @@ int dsp_init_sender(cnetz_t *cnetz, int measure_speed, double clock_speed[2], en
PDEBUG_CHAN(DDSP, DEBUG_DEBUG, "Init FSK for 'Sender'.\n");
/* set modulation parameters */
sender_set_fm(&cnetz->sender, MAX_DEVIATION, MAX_MODULATION, DBM0_DEVIATION, MAX_DISPLAY);
sender_set_fm(&cnetz->sender, MAX_DEVIATION, MAX_MODULATION, dbm0_deviation, MAX_DISPLAY);
if (measure_speed) {
cnetz->measure_speed = measure_speed;