1 /*
2  * Copyright (C) 2015-2020 Alibaba Group Holding Limited
3  */
4 #ifndef __LC_MMSE_NS_H__
5 #define __LC_MMSE_NS_H__
6 
7 #include <stdint.h>
8 
9 #define LC_MMSE_NS_ENABLE_RES_ECHO
10 
11 #ifdef __cplusplus
12 extern "C" {
13 #endif
14 
15 typedef struct {
16     int32_t     bypass;
17     float       denoise_dB;
18 } SpeechNs2Config;
19 
20 struct SpeechNs2State_;
21 
22 typedef struct SpeechNs2State_ SpeechNs2State;
23 
24 SpeechNs2State *speech_ns2_create(int32_t sample_rate, int32_t frame_size, const SpeechNs2Config *cfg);
25 
26 int32_t speech_ns2_destroy(SpeechNs2State *st);
27 
28 int32_t speech_ns2_set_config(SpeechNs2State *st, const SpeechNs2Config *cfg);
29 
30 int32_t speech_ns2_process(SpeechNs2State *st, int16_t *pcm_buf, int32_t pcm_len);
31 
32 int32_t speech_ns2_set_echo_state(SpeechNs2State *st, void *echo_state);
33 
34 int32_t speech_ns2_set_echo_suppress(SpeechNs2State *st, int32_t echo_suppress);
35 
36 #ifdef __cplusplus
37 }
38 #endif
39 
40 #endif
41