如何使用espeak_event_type;

我正在寻找一种方法来知道何时espeak结束它。有人告诉使用espeakEVENT_MSG_TERMINATED。但是，当我尝试将此部分放入我的代码中时，它给了我这个错误：

#include <espeak/speak_lib.h>
espeak_EVENT_TYPE;
    if( espeak_EVENT_TYPE == espeakEVENT_MSG_TERMINATED)
    {
    do something;
    }

application.cpp：31：1：错误：声明没有声明任何内容 [-fpermissive] espeak_event_type;^ application.cpp：功能 " void语音(char*("：application.cpp：116：27：错误：预期 " =="令牌之前的主要表达 如果(ESPEAK_EVENT_TYPE == ESPEAKEVENT_MSG_TERMINDIND(

编辑：我使用此简单代码使用espeak：

#include <string.h>
#include <malloc.h>
#include <espeak/speak_lib.h>

espeak_POSITION_TYPE position_type;
espeak_AUDIO_OUTPUT output;
char *path=NULL;
int Buflength = 1000, Options=0;
void* user_data;
t_espeak_callback *SynthCallback;
espeak_PARAMETER Parm;

char Voice[] = {"English"};

char text[30] = {"this is an english text"};
unsigned int Size,position=0, end_position=0, flags=espeakCHARS_AUTO, *unique_identifier;


int main(int argc, char* argv[] ) 
{
    output = AUDIO_OUTPUT_PLAYBACK;
    espeak_Initialize(output, Buflength, path, AUDIO_OUTPUT_SYNCHRONOUS ); //Options ); 
    espeak_SetVoiceByName(Voice);
    const char *langNativeString = "en";
    espeak_VOICE voice = {0};
  //  memset(&voice, 0, sizeof(espeak_VOICE));
        voice.languages = langNativeString;
        voice.name = "US";
        voice.variant = 2;
        voice.gender = 1;
        espeak_SetVoiceByProperties(&voice);
    Size = strlen(text)+1;    
    espeak_Synth( text, Size, position, position_type, end_position, flags,unique_identifier, user_data );
    espeak_Synchronize( );
    return 0;
}

edit2：

#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <sphinxbase/err.h>
#include <sphinxbase/ad.h>
#include <espeak/speak_lib.h>
#include <string>
#include <iostream>
using namespace std;
#include "pocketsphinx.h"
static ps_decoder_t *ps;
static cmd_ln_t *config;
static FILE *rawfd;
ad_rec_t *ad;
espeak_POSITION_TYPE position_type;
espeak_AUDIO_OUTPUT output;
char *path=NULL;
int Buflength = 1000, Options=0;
void* user_data;
char Voice[] = {"English"};
unsigned int Size,position=0, end_position=0, flags=espeakCHARS_AUTO, *unique_identifier;
t_espeak_callback *SynthCallback;
espeak_PARAMETER Parm;
static void initFuncs()
{
    output = AUDIO_OUTPUT_PLAYBACK;
    espeak_Initialize(output, Buflength, path, AUDIO_OUTPUT_SYNCHRONOUS ); 
    espeak_SetVoiceByName(Voice);
    const char *langNativeString = "en";
    espeak_VOICE voice;
    memset(&voice, 0, sizeof(espeak_VOICE));
        voice.languages = langNativeString;
        voice.name = "US";
        voice.variant = 2;
        voice.gender = 1;
        espeak_SetVoiceByProperties(&voice);
}
int receive_espeak_events(short *wav, int numsamples, espeak_EVENT *event)
{
    while (event->type != espeakEVENT_LIST_TERMINATED) {
        if (event->type == espeakEVENT_MSG_TERMINATED) {
            /* do something */
            ad_start_rec(ad);
        }
        ++event; // Examine the next event.
    }
    return 0; // Continue speaking.
}
static void sleep_msec(int32 ms)
{
    struct timeval tmo;
    tmo.tv_sec = 0;
    tmo.tv_usec = ms * 1000;
    select(0, NULL, NULL, NULL, &tmo);
}
static void speech(char* hyp)
{      
    Size = strlen(hyp)+1;
    espeak_SetSynthCallback(receive_espeak_events);
    espeak_Synth( hyp, Size, position, position_type, end_position, flags,unique_identifier, user_data );
    espeak_Synchronize( );    
}

static void recognize_from_microphone()
{
    ad_rec_t *ad;
    int16 adbuf[2048];
    uint8 utt_started, in_speech;
    int32 k;
    char  *hyp=0;
    if ((ad = ad_open_dev(cmd_ln_str_r(config, "-adcdev"),(int) cmd_ln_float32_r(config,"-samprate"))) == NULL)
        E_FATAL("Failed to open audio devicen");
    if (ad_start_rec(ad) < 0)
        E_FATAL("Failed to start recordingn");
    if (ps_start_utt(ps) < 0)
        E_FATAL("Failed to start utterancen");

    utt_started = FALSE;
    E_INFO("Ready....n");
    for (;;) 
    {
        if ((k = ad_read(ad, adbuf, 2048)) < 0)
            E_FATAL("Failed to read audion");
        ps_process_raw(ps, adbuf, k, FALSE, FALSE);
        in_speech = ps_get_in_speech(ps);
        if (in_speech && !utt_started) 
        {
            utt_started = TRUE;
            E_INFO("Listening...n");
        }
        if (!in_speech && utt_started) 
        {
            ps_end_utt(ps);
            hyp = (char*)ps_get_hyp(ps, NULL );
            if (hyp != NULL) 
            {
///////////////////I am passing hyp to espeak heere ////////////////////
             ad_stop_rec(ad);
             speech(hyp);
                printf("%sn",hyp);
                fflush(stdout);
            //    sleep_msec(3000);
            }
            if (ps_start_utt(ps) < 0)
                E_FATAL("Failed to start utterancen");
            utt_started = FALSE;
            E_INFO("Ready....n");
        }
    }//for
    ad_close(ad);
}
int main(int argc, char *argv[])
{
    initFuncs();
                 config = cmd_ln_init(NULL, ps_args(), TRUE,
                 "-hmm", "/home/m/myrobot3/robot/model_parameters/robot.cd_cont_1000",
                     "-lm","/home/m/myrobot3/robot/etc/robot.lm.bin",
                     "-dict", "/home/m/myrobot3/robot/etc/robot.dic",
                     NULL);
    ps = ps_init(config);
    recognize_from_microphone();
    ps_free(ps);
    cmd_ln_free_r(config);
    return 0;
}

错误：

致命：" application.cpp"，第163行：无法阅读音频