vad.h File Reference

Simple voice activity detection. More...

#include <pocketsphinx/prim_type.h>
#include <pocketsphinx/export.h>

Go to the source code of this file.

Macros
#define	PS_VAD_DEFAULT_SAMPLE_RATE   16000
#define	PS_VAD_DEFAULT_FRAME_LENGTH   0.03
#define	ps_vad_frame_length(vad)   ((double)ps_vad_frame_size(vad) / ps_vad_sample_rate(vad))

Typedefs
typedef struct ps_vad_s	ps_vad_t
typedef enum ps_vad_mode_e	ps_vad_mode_t
typedef enum ps_vad_class_e	ps_vad_class_t

Enumerations
enum	ps_vad_mode_e { PS_VAD_LOOSE = 0, PS_VAD_MEDIUM_LOOSE = 1, PS_VAD_MEDIUM_STRICT = 2, PS_VAD_STRICT = 3 }
	Voice activity detection "aggressiveness" levels. More...
enum	ps_vad_class_e { PS_VAD_ERROR = -1, PS_VAD_NOT_SPEECH = 0, PS_VAD_SPEECH = 1 }
	Classification of input frames returned by ps_vad_classify(). More...

Detailed Description

Simple voice activity detection.

Because doxygen is Bad Software, the actual documentation can only exist in ps_vad_t. Sorry about that.

Macro Definition Documentation

PS_VAD_DEFAULT_SAMPLE_RATE

#define PS_VAD_DEFAULT_SAMPLE_RATE   16000

Default sampling rate for voice activity detector

PS_VAD_DEFAULT_FRAME_LENGTH

#define PS_VAD_DEFAULT_FRAME_LENGTH   0.03

Default frame length for voice activity detector

ps_vad_frame_length

#define ps_vad_frame_length

(

vad

)

((double)ps_vad_frame_size(vad) / ps_vad_sample_rate(vad))

Get the actual length of a frame in seconds.

This may differ from the value requested in ps_vad_set_input_params().

Enumeration Type Documentation

ps_vad_mode_e

enum ps_vad_mode_e

Voice activity detection "aggressiveness" levels.

pocketsphinx/vad.h

ps_vad_class_e

enum ps_vad_class_e

Classification of input frames returned by ps_vad_classify().

pocketsphinx/vad.h