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common: Add pre and de emphasis, if the radio does not support it

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Connect to the oscillator of the transmitter - good girl!
You need to enable pre emphasis in this case.

Connect to the discriminator of the receiver - good boy!
You need to enable de emphasis in this case.
This commit is contained in:
Andreas Eversberg
2016-04-23 18:50:11 +02:00
parent 5062628e52
commit 4356c93afa
20 changed files with 256 additions and 19 deletions
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src/anetz/anetz.h
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@@ -41,7 +41,7 @@ typedef struct anetz {
double anetz_kanal2freq(int kanal, int unterband);
int anetz_init(void);
int anetz_create(const char *sounddev, int samplerate, const char *write_wave, const char *read_wave, int kanal, int loopback, double loss_volume);
int anetz_create(const char *sounddev, int samplerate, int pre_emphasis, int de_emphasis, const char *write_wave, const char *read_wave, int kanal, int loopback, double loss_volume);
void anetz_destroy(sender_t *sender);
void anetz_loss_indication(anetz_t *anetz);
void anetz_receive_tone(anetz_t *anetz, int bit);