pure sdk for main

2025-08-27 09:51:58 +01:00
parent f0d033f1c9
commit 0571416e7c
3283 changed files with 1577720 additions and 1 deletions
@@ -0,0 +1,101 @@
+/*
+ *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_DEFINES_H_
+#define MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_DEFINES_H_
+
+#define ANAL_BLOCKL_MAX         128 /* Max analysis block length，8K采样率只需要128*/
+#define HALF_ANAL_BLOCKL        (ANAL_BLOCKL_MAX/2+1) /* Half max analysis block length + 1 */
+//#define NUM_HIGH_BANDS_MAX      2   /* Max number of high bands */
+#define SIMULT                  3
+#define END_STARTUP_LONG        200
+#define END_STARTUP_SHORT       50
+#define FACTOR_Q16              2621440 /* 40 in Q16 */
+#define FACTOR_Q7               5120 /* 40 in Q7 */
+#define FACTOR_Q7_STARTUP       1024 /* 8 in Q7 */
+#define WIDTH_Q8                3 /* 0.01 in Q8 (or 25 ) */
+
+/* PARAMETERS FOR NEW METHOD */
+#define DD_PR_SNR_Q11           2007 /* ~= Q11(0.98) DD update of prior SNR */
+#define ONE_MINUS_DD_PR_SNR_Q11 41 /* DD update of prior SNR */
+#define SPECT_FLAT_TAVG_Q14     4915 /* (0.30) tavg parameter for spectral flatness measure */
+#define SPECT_DIFF_TAVG_Q8      77 /* (0.30) tavg parameter for spectral flatness measure */
+#define PRIOR_UPDATE_Q14        1638 /* Q14(0.1) Update parameter of prior model */
+#define NOISE_UPDATE_Q8         26 /* 26 ~= Q8(0.1) Update parameter for noise */
+
+/* Probability threshold for noise state in speech/noise likelihood. */
+#define ONE_MINUS_PROB_RANGE_Q8 205 /* 205 ~= Q8(0.8) */
+#define HIST_PAR_EST            1000 /* Histogram size for estimation of parameters */
+
+/* FEATURE EXTRACTION CONFIG  */
+/* Bin size of histogram */
+#define BIN_SIZE_LRT            10
+/* Scale parameters: multiply dominant peaks of the histograms by scale factor to obtain. */
+/* Thresholds for prior model */
+#define FACTOR_1_LRT_DIFF       6 /* For LRT and spectral difference (5 times bigger) */
+/* For spectral_flatness: used when noise is flatter than speech (10 times bigger). */
+#define FACTOR_2_FLAT_Q10       922
+/* Peak limit for spectral flatness (varies between 0 and 1) */
+#define THRES_PEAK_FLAT         24 /* * 2 * BIN_SIZE_FLAT_FX */
+/* Limit on spacing of two highest peaks in histogram: spacing determined by bin size. */
+#define LIM_PEAK_SPACE_FLAT_DIFF    4 /* * 2 * BIN_SIZE_DIFF_FX */
+/* Limit on relevance of second peak */
+#define LIM_PEAK_WEIGHT_FLAT_DIFF   2
+#define THRES_FLUCT_LRT         10240 /* = 20 * inst->modelUpdate; fluctuation limit of LRT feat. */
+/* Limit on the max and min values for the feature thresholds */
+#define MAX_FLAT_Q10            38912 /*  * 2 * BIN_SIZE_FLAT_FX */
+#define MIN_FLAT_Q10            4096 /*  * 2 * BIN_SIZE_FLAT_FX */
+#define MAX_DIFF                100 /* * 2 * BIN_SIZE_DIFF_FX */
+#define MIN_DIFF                16 /* * 2 * BIN_SIZE_DIFF_FX */
+/* Criteria of weight of histogram peak  to accept/reject feature */
+#define THRES_WEIGHT_FLAT_DIFF  154 /*(int)(0.3*(inst->modelUpdate)) for flatness and difference */
+
+#define STAT_UPDATES            9 /* Update every 512 = 1 << 9 block */
+#define ONE_MINUS_GAMMA_PAUSE_Q8    13 /* ~= Q8(0.05) Update for conservative noise estimate */
+#define GAMMA_NOISE_TRANS_AND_SPEECH_Q8 3 /* ~= Q8(0.01) Update for transition and noise region */
+
+//使用宏代替一些不会改的变量。只针对8k采样率有用
+#define NR_BLOCKLEN10MS         80
+#define NR_ANALEN               128
+#define NR_ANALEN2              (NR_ANALEN / 2)
+#define NR_MAGNLEN              (NR_ANALEN2 + 1)
+#define NR_STAGES               7
+#define NR_MAXLRT               0x0040000
+#define NR_MINLRT               52429
+#define NR_MODELUPDATE          (1 << STAT_UPDATES)
+#define NR_HANNING_WINDOW       kBlocks80w128x
+
+//凤噪抑制等级参数
+#define NSLEVEL                 3 //0-3
+#if NSLEVEL == 0
+#define NR_GAINMAP              0
+#define NR_OVERDRIVE            256
+#define NR_DENOISEBOUND         8192
+#elif NSLEVEL == 1
+#define NR_GAINMAP              1
+#define NR_OVERDRIVE            256
+#define NR_DENOISEBOUND         4096
+#define NR_FACTOR2TABLE         kFactor2Aggressiveness1
+#elif NSLEVEL == 2
+#define NR_GAINMAP              1
+#define NR_OVERDRIVE            282
+#define NR_DENOISEBOUND         2048
+#define NR_FACTOR2TABLE         kFactor2Aggressiveness2
+#elif NSLEVEL == 3
+#define NR_GAINMAP              1
+#define NR_OVERDRIVE            320
+#define NR_DENOISEBOUND         1475
+#define NR_FACTOR2TABLE         kFactor2Aggressiveness3
+#endif
+
+// Skip first frequency bins during estimation. (0 <= value < 64)
+#define NR_KSTARTBAND           5
+
+#endif /* MODULES_AUDIO_PROCESSING_NS_MAIN_SOURCE_NSX_DEFINES_H_ */