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-rw-r--r--src/libspeex/testecho.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/src/libspeex/testecho.c b/src/libspeex/testecho.c
new file mode 100644
index 0000000..5ae855f
--- /dev/null
+++ b/src/libspeex/testecho.c
@@ -0,0 +1,53 @@
+#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;
+}