Searched refs:st2095 (Results 1 - 3 of 3) sorted by relevance
| /third_party/alsa-utils/speaker-test/ |
| H A D | st2095.c | 2 st2095.c
16 #include "st2095.h"
21 void reset_st2095_noise_measurement( st2095_noise_t *st2095 ) { in reset_st2095_noise_measurement()
22 st2095->accum = 0.; in reset_st2095_noise_measurement()
25 float compute_st2095_noise_measurement( st2095_noise_t *st2095, int period ) { in compute_st2095_noise_measurement() argument
26 return(10. * log10f(st2095->accum / (float)period) + 3.01); in compute_st2095_noise_measurement()
29 void initialize_st2095_noise( st2095_noise_t *st2095, int sample_rate) { in initialize_st2095_noise() argument
34 st2095->samplesPerPeriod = 1048576; in initialize_st2095_noise()
35 st2095->randStep = 163841; in initialize_st2095_noise()
37 st2095 in initialize_st2095_noise()
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| H A D | st2095.h | 37 void initialize_st2095_noise( st2095_noise_t *st2095, int sample_rate );
38 float generate_st2095_noise_sample( st2095_noise_t *st2095 );
40 void reset_st2095_noise_measurement( st2095_noise_t *st2095 );
41 float compute_st2095_noise_measurement( st2095_noise_t *st2095, int period );
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| H A D | speaker-test.c | 64 #include "st2095.h"
431 st2095_noise_t *st2095 = arg; in generate_st2095_noise() local
434 res.f = generate_st2095_noise_sample(st2095); in generate_st2095_noise()
883 static st2095_noise_t st2095; variable
889 initialize_st2095_noise(&st2095, rate); in init_loop()
936 reset_st2095_noise_measurement(&st2095); in write_loop()
937 do_generate(frames, channel, period_size, generate_st2095_noise, &st2095); in write_loop()
939 compute_st2095_noise_measurement(&st2095, period_size)); in write_loop()
992 "-t,--test pink=use pink noise, sine=use sine wave, st2095=use SMPTE ST-2095 noise, wav=WAV file\n" in help()
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