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C-Netz: Improve clock speed measurements.

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Sound card's clock measurements only requires a few minutes to get sub-ppm
accuracy results.
This commit is contained in:
Andreas Eversberg
2017-02-01 17:57:09 +01:00
parent 54ed5d5f82
commit 5f1d7bc970
4 changed files with 30 additions and 43 deletions
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2
src/cnetz/dsp.h
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@@ -2,7 +2,7 @@
void dsp_init(void);
int dsp_init_sender(cnetz_t *cnetz, int measure_speed, double clock_speed[2]);
void dsp_cleanup_sender(cnetz_t *cnetz);
void calc_clock_speed(cnetz_t *cnetz, uint64_t samples, int tx, int result);
void calc_clock_speed(cnetz_t *cnetz, double samples, int tx, int result);
void unshrink_speech(cnetz_t *cnetz, sample_t *speech_buffer, int count);
void cnetz_set_dsp_mode(cnetz_t *cnetz, enum dsp_mode mode);
void cnetz_set_sched_dsp_mode(cnetz_t *cnetz, enum dsp_mode mode, int frames_ahead);