mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-24 00:37:47 +00:00
88 lines
4.2 KiB
C
88 lines
4.2 KiB
C
/*
|
|
* 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 WEBRTC_MODULES_AUDIO_PROCESSING_AECM_AECM_DEFINES_H_
|
|
#define WEBRTC_MODULES_AUDIO_PROCESSING_AECM_AECM_DEFINES_H_
|
|
|
|
#define AECM_DYNAMIC_Q /* Turn on/off dynamic Q-domain. */
|
|
|
|
/* Algorithm parameters */
|
|
#define FRAME_LEN 80 /* Total frame length, 10 ms. */
|
|
|
|
#define PART_LEN 64 /* Length of partition. */
|
|
#define PART_LEN_SHIFT 7 /* Length of (PART_LEN * 2) in base 2. */
|
|
|
|
#define PART_LEN1 (PART_LEN + 1) /* Unique fft coefficients. */
|
|
#define PART_LEN2 (PART_LEN << 1) /* Length of partition * 2. */
|
|
#define PART_LEN4 (PART_LEN << 2) /* Length of partition * 4. */
|
|
#define FAR_BUF_LEN PART_LEN4 /* Length of buffers. */
|
|
#define MAX_DELAY 100
|
|
|
|
/* Counter parameters */
|
|
#define CONV_LEN 512 /* Convergence length used at startup. */
|
|
#define CONV_LEN2 (CONV_LEN << 1) /* Used at startup. */
|
|
|
|
/* Energy parameters */
|
|
#define MAX_BUF_LEN 64 /* History length of energy signals. */
|
|
#define FAR_ENERGY_MIN 1025 /* Lowest Far energy level: At least 2 */
|
|
/* in energy. */
|
|
#define FAR_ENERGY_DIFF 929 /* Allowed difference between max */
|
|
/* and min. */
|
|
#define ENERGY_DEV_OFFSET 0 /* The energy error offset in Q8. */
|
|
#define ENERGY_DEV_TOL 400 /* The energy estimation tolerance (Q8). */
|
|
#define FAR_ENERGY_VAD_REGION 230 /* Far VAD tolerance region. */
|
|
|
|
/* Stepsize parameters */
|
|
#define MU_MIN 10 /* Min stepsize 2^-MU_MIN (far end energy */
|
|
/* dependent). */
|
|
#define MU_MAX 1 /* Max stepsize 2^-MU_MAX (far end energy */
|
|
/* dependent). */
|
|
#define MU_DIFF 9 /* MU_MIN - MU_MAX */
|
|
|
|
/* Channel parameters */
|
|
#define MIN_MSE_COUNT 20 /* Min number of consecutive blocks with enough */
|
|
/* far end energy to compare channel estimates. */
|
|
#define MIN_MSE_DIFF 29 /* The ratio between adapted and stored channel to */
|
|
/* accept a new storage (0.8 in Q-MSE_RESOLUTION). */
|
|
#define MSE_RESOLUTION 5 /* MSE parameter resolution. */
|
|
#define RESOLUTION_CHANNEL16 12 /* W16 Channel in Q-RESOLUTION_CHANNEL16. */
|
|
#define RESOLUTION_CHANNEL32 28 /* W32 Channel in Q-RESOLUTION_CHANNEL. */
|
|
#define CHANNEL_VAD 16 /* Minimum energy in frequency band */
|
|
/* to update channel. */
|
|
|
|
/* Suppression gain parameters: SUPGAIN parameters in Q-(RESOLUTION_SUPGAIN). */
|
|
#define RESOLUTION_SUPGAIN 8 /* Channel in Q-(RESOLUTION_SUPGAIN). */
|
|
#define SUPGAIN_DEFAULT (1 << RESOLUTION_SUPGAIN) /* Default. */
|
|
#define SUPGAIN_ERROR_PARAM_A 3072 /* Estimation error parameter */
|
|
/* (Maximum gain) (8 in Q8). */
|
|
#define SUPGAIN_ERROR_PARAM_B 1536 /* Estimation error parameter */
|
|
/* (Gain before going down). */
|
|
#define SUPGAIN_ERROR_PARAM_D SUPGAIN_DEFAULT /* Estimation error parameter */
|
|
/* (Should be the same as Default) (1 in Q8). */
|
|
#define SUPGAIN_EPC_DT 200 /* SUPGAIN_ERROR_PARAM_C * ENERGY_DEV_TOL */
|
|
|
|
/* Defines for "check delay estimation" */
|
|
#define CORR_WIDTH 31 /* Number of samples to correlate over. */
|
|
#define CORR_MAX 16 /* Maximum correlation offset. */
|
|
#define CORR_MAX_BUF 63
|
|
#define CORR_DEV 4
|
|
#define CORR_MAX_LEVEL 20
|
|
#define CORR_MAX_LOW 4
|
|
#define CORR_BUF_LEN (CORR_MAX << 1) + 1
|
|
/* Note that CORR_WIDTH + 2*CORR_MAX <= MAX_BUF_LEN. */
|
|
|
|
#define ONE_Q14 (1 << 14)
|
|
|
|
/* NLP defines */
|
|
#define NLP_COMP_LOW 3277 /* 0.2 in Q14 */
|
|
#define NLP_COMP_HIGH ONE_Q14 /* 1 in Q14 */
|
|
|
|
#endif
|