| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include "speex/speex_echo.h" |
| #include "speex/speex_preprocess.h" |
| |
| |
| #define NN 128 |
| #define TAIL 1024 |
| |
| int main(int argc, char **argv) |
| { |
| FILE *echo_fd, *ref_fd, *e_fd; |
| short echo_buf[NN], ref_buf[NN], e_buf[NN]; |
| SpeexEchoState *st; |
| SpeexPreprocessState *den; |
| int sampleRate = 8000; |
| |
| if (argc != 4) |
| { |
| fprintf(stderr, "testecho mic_signal.sw speaker_signal.sw output.sw\n"); |
| exit(1); |
| } |
| echo_fd = fopen(argv[2], "rb"); |
| ref_fd = fopen(argv[1], "rb"); |
| e_fd = fopen(argv[3], "wb"); |
| |
| st = speex_echo_state_init(NN, TAIL); |
| den = speex_preprocess_state_init(NN, sampleRate); |
| speex_echo_ctl(st, SPEEX_ECHO_SET_SAMPLING_RATE, &sampleRate); |
| speex_preprocess_ctl(den, SPEEX_PREPROCESS_SET_ECHO_STATE, st); |
| |
| while (!feof(ref_fd) && !feof(echo_fd)) |
| { |
| fread(ref_buf, sizeof(short), NN, ref_fd); |
| fread(echo_buf, sizeof(short), NN, echo_fd); |
| speex_echo_cancellation(st, ref_buf, echo_buf, e_buf); |
| speex_preprocess_run(den, e_buf); |
| fwrite(e_buf, sizeof(short), NN, e_fd); |
| } |
| speex_echo_state_destroy(st); |
| speex_preprocess_state_destroy(den); |
| fclose(e_fd); |
| fclose(echo_fd); |
| fclose(ref_fd); |
| return 0; |
| } |