-
Notifications
You must be signed in to change notification settings - Fork 704
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #319 from cmusphinx/live_examples
Include examples of live recognition on various platforms
- Loading branch information
Showing
8 changed files
with
466 additions
and
6 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| /* Example of simple PocketSphinx speech segmentation. | ||
| * | ||
| * MIT license (c) 2022, see LICENSE for more information. | ||
| * | ||
| * Author: David Huggins-Daines <dhdaines@gmail.com> | ||
| */ | ||
| /** | ||
| * @example live_portaudio.c | ||
| * @brief Speech recognition with live audio input and endpointing. | ||
| * | ||
| * This file shows how to use PocketSphinx with microphone input using | ||
| * PortAudio (v19 and above). | ||
| * | ||
| * To compile it, assuming you have built the library as in | ||
| * \ref unix_install "these directions", you can run: | ||
| * | ||
| * cmake --build build --target live_portaudio | ||
| * | ||
| * Alternately, if PocketSphinx is installed system-wide, you can run: | ||
| * | ||
| * gcc -o live_portaudio live_portaudio.c \ | ||
| * $(pkg-config --libs --cflags pocketsphinx portaudio-2.0) | ||
| * | ||
| * | ||
| */ | ||
| #include <portaudio.h> | ||
| #include <pocketsphinx.h> | ||
| #include <signal.h> | ||
|
|
||
| static int global_done = 0; | ||
| static void | ||
| catch_sig(int signum) | ||
| { | ||
| (void)signum; | ||
| global_done = 1; | ||
| } | ||
|
|
||
| int | ||
| main(int argc, char *argv[]) | ||
| { | ||
|
|
||
| PaStream *stream; | ||
| PaError err; | ||
| ps_decoder_t *decoder; | ||
| ps_config_t *config; | ||
| ps_endpointer_t *ep; | ||
| short *frame; | ||
| size_t frame_size; | ||
|
|
||
| (void)argc; (void)argv; | ||
|
|
||
| config = ps_config_init(NULL); | ||
| ps_default_search_args(config); | ||
|
|
||
| if ((err = Pa_Initialize()) != paNoError) | ||
| E_FATAL("Failed to initialize PortAudio: %s\n", | ||
| Pa_GetErrorText(err)); | ||
| if ((decoder = ps_init(config)) == NULL) | ||
| E_FATAL("PocketSphinx decoder init failed\n"); | ||
| if ((ep = ps_endpointer_init(0, 0.0, 0, 0, 0)) == NULL) | ||
| E_FATAL("PocketSphinx endpointer init failed\n"); | ||
| frame_size = ps_endpointer_frame_size(ep); | ||
| if ((frame = malloc(frame_size * sizeof(frame[0]))) == NULL) | ||
| E_FATAL_SYSTEM("Failed to allocate frame"); | ||
| if ((err = Pa_OpenDefaultStream(&stream, 1, 0, paInt16, | ||
| ps_config_int(config, "samprate"), | ||
| frame_size, NULL, NULL)) != paNoError) | ||
| E_FATAL("Failed to open PortAudio stream: %s\n", | ||
| Pa_GetErrorText(err)); | ||
| if ((err = Pa_StartStream(stream)) != paNoError) | ||
| E_FATAL("Failed to start PortAudio stream: %s\n", | ||
| Pa_GetErrorText(err)); | ||
| if (signal(SIGINT, catch_sig) == SIG_ERR) | ||
| E_FATAL_SYSTEM("Failed to set SIGINT handler"); | ||
| while (!global_done) { | ||
| const int16 *speech; | ||
| int prev_in_speech = ps_endpointer_in_speech(ep); | ||
| if ((err = Pa_ReadStream(stream, frame, frame_size)) != paNoError) { | ||
| E_ERROR("Error in PortAudio read: %s\n", | ||
| Pa_GetErrorText(err)); | ||
| break; | ||
| } | ||
| speech = ps_endpointer_process(ep, frame); | ||
| if (speech != NULL) { | ||
| const char *hyp; | ||
| if (!prev_in_speech) { | ||
| fprintf(stderr, "Speech start at %.2f\n", | ||
| ps_endpointer_speech_start(ep)); | ||
| fflush(stderr); /* For broken MSYS2 terminal */ | ||
| ps_start_utt(decoder); | ||
| } | ||
| if (ps_process_raw(decoder, speech, frame_size, FALSE, FALSE) < 0) | ||
| E_FATAL("ps_process_raw() failed\n"); | ||
| if ((hyp = ps_get_hyp(decoder, NULL)) != NULL) { | ||
| fprintf(stderr, "PARTIAL RESULT: %s\n", hyp); | ||
| fflush(stderr); | ||
| } | ||
| if (!ps_endpointer_in_speech(ep)) { | ||
| fprintf(stderr, "Speech end at %.2f\n", | ||
| ps_endpointer_speech_end(ep)); | ||
| fflush(stderr); | ||
| ps_end_utt(decoder); | ||
| if ((hyp = ps_get_hyp(decoder, NULL)) != NULL) { | ||
| printf("%s\n", hyp); | ||
| fflush(stdout); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| if ((err = Pa_StopStream(stream)) != paNoError) | ||
| E_FATAL("Failed to stop PortAudio stream: %s\n", | ||
| Pa_GetErrorText(err)); | ||
| if ((err = Pa_Terminate()) != paNoError) | ||
| E_FATAL("Failed to terminate PortAudio: %s\n", | ||
| Pa_GetErrorText(err)); | ||
| free(frame); | ||
| ps_endpointer_free(ep); | ||
| ps_free(decoder); | ||
| ps_config_free(config); | ||
|
|
||
| return 0; | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| /* Example of simple PocketSphinx speech segmentation. | ||
| * | ||
| * MIT license (c) 2022, see LICENSE for more information. | ||
| * | ||
| * Author: David Huggins-Daines <dhdaines@gmail.com> | ||
| */ | ||
| /** | ||
| * @example live_pulseaudio.c | ||
| * @brief Speech recognition with live audio input and endpointing. | ||
| * | ||
| * This file shows how to use PocketSphinx with microphone input using | ||
| * PulseAudio. | ||
| * | ||
| * To compile it, assuming you have built the library as in | ||
| * \ref unix_install "these directions", you can run: | ||
| * | ||
| * cmake --build build --target live_pulseaudio | ||
| * | ||
| * Alternately, if PocketSphinx is installed system-wide, you can run: | ||
| * | ||
| * gcc -o live_pulseaudio live_pulseaudio.c \ | ||
| * $(pkg-config --libs --cflags pocketsphinx libpulse-simple) | ||
| * | ||
| * | ||
| */ | ||
| #include <pulse/simple.h> | ||
| #include <pulse/error.h> | ||
| #include <pocketsphinx.h> | ||
| #include <signal.h> | ||
|
|
||
| static int global_done = 0; | ||
| static void | ||
| catch_sig(int signum) | ||
| { | ||
| (void)signum; | ||
| global_done = 1; | ||
| } | ||
|
|
||
| int | ||
| main(int argc, char *argv[]) | ||
| { | ||
|
|
||
| pa_simple *s; | ||
| pa_sample_spec ss; | ||
| int err; | ||
| ps_decoder_t *decoder; | ||
| ps_config_t *config; | ||
| ps_endpointer_t *ep; | ||
| short *frame; | ||
| size_t frame_size; | ||
|
|
||
| (void)argc; (void)argv; | ||
|
|
||
| config = ps_config_init(NULL); | ||
| ps_default_search_args(config); | ||
| if ((decoder = ps_init(config)) == NULL) | ||
| E_FATAL("PocketSphinx decoder init failed\n"); | ||
| if ((ep = ps_endpointer_init(0, 0.0, 0, 0, 0)) == NULL) | ||
| E_FATAL("PocketSphinx endpointer init failed\n"); | ||
| frame_size = ps_endpointer_frame_size(ep); | ||
| if ((frame = malloc(frame_size * sizeof(frame[0]))) == NULL) | ||
| E_FATAL_SYSTEM("Failed to allocate frame"); | ||
|
|
||
| ss.format = PA_SAMPLE_S16NE; | ||
| ss.channels = 1; | ||
| ss.rate = ps_config_int(config, "samprate"); | ||
| if ((s = pa_simple_new(NULL, "live_pulseaudio", PA_STREAM_RECORD, NULL, | ||
| "live", &ss, NULL, NULL, &err)) == NULL) | ||
| E_FATAL("Failed to connect to PulseAudio: %s\n", | ||
| pa_strerror(err)); | ||
| if (signal(SIGINT, catch_sig) == SIG_ERR) | ||
| E_FATAL_SYSTEM("Failed to set SIGINT handler"); | ||
| while (!global_done) { | ||
| const int16 *speech; | ||
| int prev_in_speech = ps_endpointer_in_speech(ep); | ||
| if (pa_simple_read(s, frame, | ||
| frame_size * sizeof(frame[0]), &err) < 0) { | ||
| E_ERROR("Error in pa_simple_read: %s\n", | ||
| pa_strerror(err)); | ||
| break; | ||
| } | ||
| speech = ps_endpointer_process(ep, frame); | ||
| if (speech != NULL) { | ||
| const char *hyp; | ||
| if (!prev_in_speech) { | ||
| fprintf(stderr, "Speech start at %.2f\n", | ||
| ps_endpointer_speech_start(ep)); | ||
| ps_start_utt(decoder); | ||
| } | ||
| if (ps_process_raw(decoder, speech, frame_size, FALSE, FALSE) < 0) | ||
| E_FATAL("ps_process_raw() failed\n"); | ||
| if ((hyp = ps_get_hyp(decoder, NULL)) != NULL) | ||
| fprintf(stderr, "PARTIAL RESULT: %s\n", hyp); | ||
| if (!ps_endpointer_in_speech(ep)) { | ||
| fprintf(stderr, "Speech end at %.2f\n", | ||
| ps_endpointer_speech_end(ep)); | ||
| ps_end_utt(decoder); | ||
| if ((hyp = ps_get_hyp(decoder, NULL)) != NULL) | ||
| printf("%s\n", hyp); | ||
| } | ||
| } | ||
| } | ||
| pa_simple_free(s); | ||
| free(frame); | ||
| ps_endpointer_free(ep); | ||
| ps_free(decoder); | ||
| ps_config_free(config); | ||
|
|
||
| return 0; | ||
| } |
Oops, something went wrong.