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| author | Felicia Lim <flim@google.com> | 2017-07-05 17:36:56 -0700 |
|---|---|---|
| committer | Felicia Lim <flim@google.com> | 2017-07-07 09:42:55 -0700 |
| commit | 0c2090c324e4f2ba2a8621c8b083559bab74c7c5 (patch) | |
| tree | fea1ab0038bc4102569d1ab4ee57a0f973895570 /silk/tuning_parameters.h | |
| parent | a7703b70699299f078a189e19b6915120cded732 (diff) | |
| download | libopus-0c2090c324e4f2ba2a8621c8b083559bab74c7c5.tar.gz | |
Opus 1.2.1android-o-iot-preview-5o-iot-preview-5
Change-Id: I551f1de5c5e121ac1275334e67c7e0f96ab18114
Test: - verified builds for arm*/mips*/x86*
- checked functionality using an emulator and stagefright
Diffstat (limited to 'silk/tuning_parameters.h')
| -rw-r--r-- | silk/tuning_parameters.h | 28 |
1 files changed, 6 insertions, 22 deletions
diff --git a/silk/tuning_parameters.h b/silk/tuning_parameters.h index 5b8f4042..d70275fd 100644 --- a/silk/tuning_parameters.h +++ b/silk/tuning_parameters.h @@ -53,19 +53,12 @@ extern "C" /* LPC analysis regularization */ #define FIND_LPC_COND_FAC 1e-5f -/* LTP analysis defines */ -#define FIND_LTP_COND_FAC 1e-5f -#define LTP_DAMPING 0.05f -#define LTP_SMOOTHING 0.1f - -/* LTP quantization settings */ -#define MU_LTP_QUANT_NB 0.03f -#define MU_LTP_QUANT_MB 0.025f -#define MU_LTP_QUANT_WB 0.02f - /* Max cumulative LTP gain */ #define MAX_SUM_LOG_GAIN_DB 250.0f +/* LTP analysis defines */ +#define LTP_CORR_INV_MAX 0.03f + /***********************/ /* High pass filtering */ /***********************/ @@ -103,25 +96,16 @@ extern "C" #define SPARSE_SNR_INCR_dB 2.0f /* threshold for sparseness measure above which to use lower quantization offset during unvoiced */ -#define SPARSENESS_THRESHOLD_QNT_OFFSET 0.75f +#define ENERGY_VARIATION_THRESHOLD_QNT_OFFSET 0.6f /* warping control */ #define WARPING_MULTIPLIER 0.015f /* fraction added to first autocorrelation value */ -#define SHAPE_WHITE_NOISE_FRACTION 5e-5f +#define SHAPE_WHITE_NOISE_FRACTION 3e-5f /* noise shaping filter chirp factor */ -#define BANDWIDTH_EXPANSION 0.95f - -/* difference between chirp factors for analysis and synthesis noise shaping filters at low bitrates */ -#define LOW_RATE_BANDWIDTH_EXPANSION_DELTA 0.01f - -/* extra harmonic boosting (signal shaping) at low bitrates */ -#define LOW_RATE_HARMONIC_BOOST 0.1f - -/* extra harmonic boosting (signal shaping) for noisy input signals */ -#define LOW_INPUT_QUALITY_HARMONIC_BOOST 0.1f +#define BANDWIDTH_EXPANSION 0.94f /* harmonic noise shaping */ #define HARMONIC_SHAPING 0.3f |