85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
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/***************************************************************************
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*
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* Copyright 2015-2019 BES.
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* All rights reserved. All unpublished rights reserved.
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*
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* No part of this work may be used or reproduced in any form or by any
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* means, or stored in a database or retrieval system, without prior written
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* permission of BES.
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*
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* Use of this work is governed by a license granted by BES.
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* This work contains confidential and proprietary information of
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* BES. which is protected by copyright, trade secret,
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* trademark and other intellectual property rights.
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*
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****************************************************************************/
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#ifndef __DUAL_MIC_DENOISE_H__
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#define __DUAL_MIC_DENOISE_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define DUAL_MIC_DENOISE_GET_CALIBRATION_COEF_LEN (0)
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#define DUAL_MIC_DENOISE_GET_CALIBRATION_COEF (1)
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#define DUAL_MIC_DENOISE_SET_CALIBRATION_COEF (2)
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typedef struct {
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int bypass;
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float alpha_h;
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float alpha_slow;
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float alpha_fast;
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float thegma;
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float thre_corr;
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float thre_filter_diff;
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float cal_left_gain;
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float cal_right_gain;
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int delay_mono_sample;
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int wnr_enable;
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} DUAL_MIC_DENOISE_CFG_T;
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/**
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* @brief Initialization
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*
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* @param alloc_ext The allocate extent RAM
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* @param cfg The configuration set parameter
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*/
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void dual_mic_denoise_init(int32_t sample_rate, int32_t frame_size, const DUAL_MIC_DENOISE_CFG_T *cfg, void* (* alloc_ext)(int));
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/**
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* @brief Run
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*
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* @param in input sample buffer
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* sample rate: 16k;
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* sample bit: 16;
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* channel num: 2;
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* LRLRLR......: Left: main mic, Right: assist mic
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* @param out output sample buffer
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* sample rate: 16k;
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* sample bit: 16;
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* channel num: 1;
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* @param[in] len The length is sample number
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*/
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void dual_mic_denoise_run(short *in, short len, short *out);
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/**
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* @brief Calibrate left and right gain
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*
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* @param in Same as dual_mic_denoise_run definition
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* @param[in] len Same as dual_mic_denoise_run definition
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* @param[out] cfg Return calibrate configure parameter
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*/
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void dual_mic_denoise_Cal_Gain(short *in, short len, DUAL_MIC_DENOISE_CFG_T *cfg);
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/**
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* @brief Oppose initialization
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*/
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void dual_mic_denoise_deinit(void);
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int dual_mic_denoise_ctl(int ctl, void *ptr);
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#ifdef __cplusplus
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}
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#endif
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#endif
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