58 lines
2 KiB
C
58 lines
2 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 All unpublished rights reserved.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 __SPEECH_3MIC_NS_H__
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#define __SPEECH_3MIC_NS_H__
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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int32_t bypass;
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int32_t blend_en;
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int32_t authen_en;
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float delay_tapsM; // MIC L/R delay samples. 0: 适用于麦克距离为<2cm; 1: 适用于麦克距离为2cm左右; 2: 适用于麦克距离为4cm左右
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int32_t delay_tapsS;
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float denoise_dB;
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// float coefH[2][5]; // {{a0,a1,a2,a3,a4},{b0,b1,b2,b3,b4}}
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// float coefL[2][5]; // {{a0,a1,a2,a3,a4},{b0,b1,b2,b3,b4}}
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int32_t crossover_freq;
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int32_t freq_smooth_enable; // 1: 频域滤波打开; 0: 频域滤波关闭; 默认打开
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int32_t wnr_enable; // wind noise reduction enable
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} Speech3MicNsConfig;
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struct Speech3MicNsState_;
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typedef struct Speech3MicNsState_ Speech3MicNsState;
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Speech3MicNsState *speech_3mic_ns_create(int32_t sample_rate, int32_t frame_size, const Speech3MicNsConfig *cfg);
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int32_t speech_3mic_ns_destroy(Speech3MicNsState *st);
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int32_t speech_3mic_ns_set_config(Speech3MicNsState *st, const Speech3MicNsConfig *cfg);
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int32_t speech_3mic_ns_process(Speech3MicNsState *st, short *pcm_buf, int32_t pcm_len, short *out_buf);
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float speech_3mic_get_required_mips(Speech3MicNsState *st);
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#ifdef __cplusplus
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}
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#endif
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#endif
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