more conservative scaling of LTP corrs; remove assert that checks for negative residu...
[opus.git] / silk / tuning_parameters.h
index bf4f63f..bf1d23b 100644 (file)
@@ -54,14 +54,7 @@ extern "C"
 #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
+#define LTP_CORR_INV_MAX                                0.015f
 
 /***********************/
 /* High pass filtering */
@@ -100,7 +93,7 @@ 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
@@ -109,16 +102,7 @@ extern "C"
 #define SHAPE_WHITE_NOISE_FRACTION                      5e-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