| #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 <unistd.h> |
| #include "speex/speex_echo.h" |
| #include "speex/speex_preprocess.h" |
| |
| |
| #define NN 128 |
| #define TAIL 1024 |
| |
| int main(int argc, char **argv) |
| { |
| int echo_fd, ref_fd, e_fd; |
| spx_int32_t noise[NN+1]; |
| short echo_buf[NN], ref_buf[NN], e_buf[NN]; |
| SpeexEchoState *st; |
| SpeexPreprocessState *den; |
| |
| if (argc != 4) |
| { |
| fprintf (stderr, "testecho mic_signal.sw speaker_signal.sw output.sw\n"); |
| exit(1); |
| } |
| echo_fd = open (argv[2], O_RDONLY); |
| ref_fd = open (argv[1], O_RDONLY); |
| e_fd = open (argv[3], O_WRONLY | O_CREAT | O_TRUNC, 0644); |
| |
| st = speex_echo_state_init(NN, TAIL); |
| den = speex_preprocess_state_init(NN, 8000); |
| int tmp = 8000; |
| speex_echo_ctl(st, SPEEX_ECHO_SET_SAMPLING_RATE, &tmp); |
| |
| while (read(ref_fd, ref_buf, NN*2)) |
| { |
| read(echo_fd, echo_buf, NN*2); |
| speex_echo_cancel(st, ref_buf, echo_buf, e_buf, noise); |
| /*speex_preprocess(den, e_buf, noise);*/ |
| write(e_fd, e_buf, NN*2); |
| } |
| speex_echo_state_destroy(st); |
| speex_preprocess_state_destroy(den); |
| close(e_fd); |
| close(echo_fd); |
| close(ref_fd); |
| return 0; |
| } |