1#ifdef HAVE_CONFIG_H 2#include "config.h" 3#endif 4 5#include "speex/speex_echo.h" 6#include "speex/speex_preprocess.h" 7#include <stdio.h> 8#include <stdlib.h> 9#include <sys/types.h> 10#include <sys/stat.h> 11#include <fcntl.h> 12 13 14#define NN 128 15#define TAIL 1024 16 17int main(int argc, char **argv) 18{ 19 FILE *echo_fd, *ref_fd, *e_fd; 20 short echo_buf[NN], ref_buf[NN], e_buf[NN]; 21 SpeexEchoState *st; 22 SpeexPreprocessState *den; 23 int sampleRate = 8000; 24 25 if (argc != 4) 26 { 27 fprintf(stderr, "testecho mic_signal.sw speaker_signal.sw output.sw\n"); 28 exit(1); 29 } 30 echo_fd = fopen(argv[2], "rb"); 31 ref_fd = fopen(argv[1], "rb"); 32 e_fd = fopen(argv[3], "wb"); 33 34 st = speex_echo_state_init(NN, TAIL); 35 den = speex_preprocess_state_init(NN, sampleRate); 36 speex_echo_ctl(st, SPEEX_ECHO_SET_SAMPLING_RATE, &sampleRate); 37 speex_preprocess_ctl(den, SPEEX_PREPROCESS_SET_ECHO_STATE, st); 38 39 while (!feof(ref_fd) && !feof(echo_fd)) 40 { 41 fread(ref_buf, sizeof(short), NN, ref_fd); 42 fread(echo_buf, sizeof(short), NN, echo_fd); 43 speex_echo_cancellation(st, ref_buf, echo_buf, e_buf); 44 speex_preprocess_run(den, e_buf); 45 fwrite(e_buf, sizeof(short), NN, e_fd); 46 } 47 speex_echo_state_destroy(st); 48 speex_preprocess_state_destroy(den); 49 fclose(e_fd); 50 fclose(echo_fd); 51 fclose(ref_fd); 52 return 0; 53} 54