语音对讲---基于图灵机器人+科大讯飞_讯飞sdk语音识别最长识别多久

1. 功能和注意事项

1.1 功能

• 语音对讲
• 文字转语音
• 语音转文字
• 音量可以调节
• 语速可以调节

1.2 注意事项

    讯飞语音的语音识别每次识别最长只支持60秒，中间有较长静音的话，也会自动停止识别。
    讯飞SDK不支持多线程调用。即一次session所涉及的begin—end接口必须在同一个线程中调用
    MSPLogin(NULL, NULL,”appid = XXXXXXX”); 不用用户名和密码也可以登录成功。

2. 测试环境

    调试在OK210ARM板上单独调试无问题。

3. 科大讯飞交叉编译库

  这个可以通过注册账号之后，然后需要独立的开发环境的话，则需要向科大讯飞提交申请，为你专门编译开发库。

4. QT实现

qvoiceintercom.h文件
1

#ifndef QVOICEINTERCOM_H
#define QVOICEINTERCOM_H

#include <QWidget>
#include <QtNetwork>
#include <QTime>
#include <QFile>

#include    "include/msp_cmn.h"
#include    "include/msp_errors.h"
#include    "include/msp_types.h"
#include    "include/qisr.h"
#include    "include/qtts.h"

#define LENGTH 1        /* 存储秒数 */
#define RATE 16000      /* 采样频率 */
#define SIZE 8          /* 量化位数 */
#define CHANNELS 1      /* 声道数目 */
#define RSIZE    8      /*buf的大小 */

#define PCM_TEXT_TO_SPEECH          "/home/SMARTHOME/info/text_to_speech.pcm"
#define PCM_SOUND                   "/home/SMARTHOME/info/sound.pcm"
#define PCM_SPEAKLOUNDLY            "/home/SMARTHOME/info/speakloundly.pcm"
#define JSON_DIR                    "/home/SMARTHOME/info"

#define     BLOCK_LEN   (LENGTH *RATE * SIZE * CHANNELS / 8)

/*

typedef int SR_DWORD;
typedef short int SR_WORD ;

//音频头部格式
struct wave_pcm_hdr
{
    char            riff[4];                                    // = "RIFF"
    SR_DWORD        size_8;                         // = FileSize - 8
    char            wave[4];                        // = "WAVE"
    char            fmt[4];                         // = "fmt "
    SR_DWORD        dwFmtSize;                      // = 下一个结构体的大小 : 16

    SR_WORD         format_tag;              // = PCM : 1
    SR_WORD         channels;                       // = 通道数 : 1
    SR_DWORD        samples_per_sec;        // = 采样率 : 8000 | 6000 | 11025 | 16000
    SR_DWORD        avg_bytes_per_sec;      // = 每秒字节数 : dwSamplesPerSec * wBitsPerSample / 8
    SR_WORD         block_align;            // = 每采样点字节数 : wBitsPerSample / 8
    SR_WORD         bits_per_sample;         // = 量化比特数: 8 | 16

    char            data[4];                        // = "data";
    SR_DWORD        data_size;                // = 纯数据长度 : FileSize - 44
} ;

//默认音频头部数据
static struct wave_pcm_hdr default_pcmwavhdr =
{
    { 'R', 'I', 'F', 'F' },
    0,
    {'W', 'A', 'V', 'E'},
    {'f', 'm', 't', ' '},
    16,
    1,
    1,
    16000,
    32000,
    2,
    16,
    {'d', 'a', 't', 'a'},
    0
};

*/

class rw_thread;
namespace Ui {
class qvoiceintercom;
class rw_thread;
class vd_thread;
}

class qvoiceintercom : public QWidget
{
    Q_OBJECT

public:
    explicit qvoiceintercom(QWidget *parent = 0);
    ~qvoiceintercom();
/************str2audio**/
private:
     char appid[15] ;               //54b0856b        must  be required
     char username[20];         //appid is not the username     could be NULL
     char passwd[20];              //user's password           could be NULL
     char login_configs[128];  //login_configs = " appid = 54b0856b, work_dir =  .  ";
     char wavfilename[128] ;    //text_to_speech.pcm
     char param[256];            //"vcn = xiaoyu,aue = speex-wb,auf = audio/L16;rate = 1600,spd = 5,vol = 5,tte = utf8"
public:
    //set
    void str2audioInit();
    int setWavfilename(const char * filename);
    void setParam(const char * vcn , int spd, int vol);
    //functions
    int textToSpeech(const char* src_text ,const char* des_path ,const char* params);
/************audio_http**/
private:
    char *info;
    QByteArray json_buf;
    QString turing_url;
    QString *base_url;
    QNetworkAccessManager *manager;
    QNetworkReply     *reply;
    QFile fjson;
    QByteArray vh_code;
    QTimer  *timeOut;
public:
    bool audioHttpInit();
    void turingInput(QString str);
    void rst_analyse(QByteArray qba,bool flag);
    int turingRead(QByteArray j_name,QByteArray *j_data,QByteArray rst_json,int index);
private slots:
    void replyFinished(QNetworkReply *reply);
    void handleTimeOut();
/************audio2str**/
public:
    void audio2strInit();                   //audio2str Initial
    void dspReadEntrance();         //the entrance of starting Record
    void dspWriteEntrance();        //the entrance of starting Play
private slots:
    void rst_manage();
/************voiceIntercom**/
private slots:
    void on_recordButton_pressed();
    void on_recordButton_released();
    void on_pushButton_clicked();
private:
    //com_serport *com1;
public:
/************voiceIntercom**********/
private:
    Ui::qvoiceintercom *ui;
};


//read and write thread====record
class rw_thread : public QThread
{
    Q_OBJECT
public:
    void run();
    explicit rw_thread(int stat);
signals:
    void readend();
private:
    int th_stat;
};

//send and get data from tuling....
class vd_thread : public QThread
{
    Q_OBJECT
public:
    void run();
    explicit vd_thread();
    int vd_send(const char * recog_param);
    int vd_end();
signals:
    void getresult();

public slots:
    void vd_stop();
public:
        char * results;
private:
    int upload_user_vocabulary();
    FILE* result_txt;

    int audio_status;
    const char *recog_params;
    const char *gramer;
};

#endif // QVOICEINTERCOM_H
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qvoiceintercom.cpp文件
1

#include "qvoiceintercom.h"
#include "ui_qvoiceintercom.h"
#include <QDebug>
#include <QSemaphore>

#include <fcntl.h>
#include <malloc.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/stat.h>
#include <linux/soundcard.h>

static bool vdFlag;

QSemaphore freeSpace(5);
QSemaphore usedSpace(0);

static long int count = 0;          /*触摸屏按钮筱抖，防止短时间内多次抖动误触摸*/

rw_thread *th_read;
rw_thread *th_write;
vd_thread *th_vd;


static void dspInit(int fd,int rate,int sample_size , int sample_channel)
{
    /* 设置采样时的量化位数 */
    int arg;                        /* 用于ioctl调用的参数 */
    int status;                     /* 系统调用的返回值 */

    arg = sample_size;
    status = ioctl(fd, SOUND_PCM_WRITE_BITS, &arg);
    if (status == -1)
        perror("SOUND_PCM_WRITE_BITS ioctl failed");
    if (arg != sample_size)
        perror("unable to set sample size");

    /* 设置采样时的声道数目 */
    arg = sample_channel;
    status = ioctl(fd, SOUND_PCM_WRITE_CHANNELS, &arg);
    if (status == -1)
        perror("SOUND_PCM_WRITE_CHANNELS ioctl failed");
    if (arg != sample_channel)
        perror("unable to set number of channels");
    /* 设置采样时的采样频率 */
    arg = rate;
    status = ioctl(fd, SOUND_PCM_WRITE_RATE, &arg);
    if (status == -1)
        perror("SOUND_PCM_WRITE_WRITE ioctl failed");
    status = ioctl(fd, SOUND_PCM_SYNC, 0);
    if (status == -1)
        perror("SOUND_PCM_SYNC ioctl failed");
}

static int rdOpen()
{
    int fd;
    fd = open("/dev/dsp", O_RDONLY);
    if (fd < 0)
    {
      perror("open of /dev/dsp failed");
      return -1;
    }
    printf("[rdOpen]fd_dsprd = %d\n",fd);
    dspInit(fd ,RATE, (SIZE*2) , CHANNELS);
    return fd;
}

static int wrOpen()
{
    int fd;
    fd = open("/dev/dsp", O_WRONLY);
    if (fd < 0)
    {
        perror("[write]open of /dev/dsp failed");
        return -1;
    }
    printf("[wrOpen]fd_dspwr = %d\n",fd);
    dspInit(fd ,(RATE/2), (SIZE*2) , CHANNELS);
    return fd;
}


static int pcmPlay(const char * pcmfilename)
{
    int fd_f;
    unsigned int i ;
    unsigned char buf[RSIZE];
    unsigned long filesize = -1;
    int     fDspwr;
    struct stat statbuff;

    if(NULL == pcmfilename)return -1;

    if((fDspwr = wrOpen()) < 0)return -1;

    if(stat(pcmfilename, &statbuff) < 0){
        printf("Get pcmfilesize failed,please check!\n");
        return -1;
    }else{
        filesize = statbuff.st_size;
    }
    printf("PlayPCM...filesize=%ld\n",filesize);

    if(( fd_f = open(pcmfilename, O_RDONLY,0777))==-1)
    {
        perror("cannot open the sound file");
        return -1;
    }
    lseek(fd_f,0,SEEK_SET);
    for(i=0;i<(filesize)/RSIZE;i++)
    {
     if (read(fd_f, buf, sizeof(buf)) != sizeof(buf))
        perror("pcmfile read wrong number of bytes");
     if (write(fDspwr, buf, sizeof(buf)) != sizeof(buf))
        perror("pcm write wrong number of bytes");
    }
    ::close(fd_f);
    ioctl(fDspwr, SOUND_PCM_SYNC, 0);

    ::close(fDspwr);
    return 0;
}

qvoiceintercom::qvoiceintercom(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::qvoiceintercom)
{
    ui->setupUi(this);
    this->setWindowFlags(Qt::FramelessWindowHint);
    ui->textEdit->setFontPointSize(20);
    ui->recordButton->setFlat(true);
    ui->recordButton->setFocusPolicy(Qt::NoFocus);
    ui->textEdit->setAttribute(Qt::WA_InputMethodEnabled, false);
    ui->recordButton->setAttribute(Qt::WA_InputMethodEnabled, false);


    audioHttpInit();
    audio2strInit();
    str2audioInit();
    //com1 = new com_serport(&comfd,DEV_NAME,8,1,'N');
}

qvoiceintercom::~qvoiceintercom()
{
    delete ui;
    reply->deleteLater();
}

/********************************************str2audio-start*******************************/
void qvoiceintercom::str2audioInit()
{
    setWavfilename(PCM_TEXT_TO_SPEECH);
    setParam("xiaoyan",7,3);
}
int qvoiceintercom::setWavfilename(const char * filename)
{
    strncpy(wavfilename,filename,sizeof(wavfilename));
    return 0;
}

void qvoiceintercom::setParam(const char * vcn , int spd, int vol)
{
    char tempParam[256] = "";
    int num = 0;
    num = sprintf(tempParam,"vcn = %s,aue = speex-wb,auf = audio/L16;rate = 16000,spd = %d,vol = %d,tte = utf8",vcn,spd,vol);
    qDebug()<<"setParam=" << tempParam << endl;
    memset(param,0,sizeof(param));
    strncpy(param,tempParam,sizeof(param));
}

int qvoiceintercom::textToSpeech(const char *src_text, const char *des_path, const char *params)
{
    const char* sess_id = NULL;
    int ret = 0;
    unsigned int text_len = 0;
    unsigned int audio_len = 0;
    int synth_status = 1;
    FILE* fp = NULL;

    printf("\nStart TTS!\n");
    qDebug()<<"tts param ="  << params << endl;
    if (NULL == src_text || NULL == des_path || NULL == params)
    {
        printf("params is null!\n");
        return -1;
    }
    text_len = (unsigned int)strlen(src_text);
    fp = fopen(des_path,"wb");
    if (NULL == fp)
    {
        printf("open file %s error\n",des_path);
        return -1;
    }
    sess_id = QTTSSessionBegin(params, &ret);
    if ( ret != MSP_SUCCESS )
    {
        printf("QTTSSessionBegin: qtts begin session failed Error code %d.\n",ret);
        return ret;
    }

    ret = QTTSTextPut(sess_id, src_text, text_len, NULL );
    if ( ret != MSP_SUCCESS )
    {
        printf("QTTSTextPut: qtts put text failed Error code %d.\n",ret);
        QTTSSessionEnd(sess_id, "TextPutError");
        return ret;
    }
    while (1)
    {
        const void *data = QTTSAudioGet(sess_id, &audio_len, &synth_status, &ret);
        if (NULL != data)
        {
           fwrite(data, audio_len, 1, fp);
        }
        printf("\nget audio...\n");
        usleep(150000);                             //建议可以sleep下，因为只有云端有音频合成数据，audioget都能获取到音频。
        if (synth_status == 2 || ret != 0)
        break;
    }

    fclose(fp);
    ret = QTTSSessionEnd(sess_id, NULL);
    if ( ret != MSP_SUCCESS )
    {
        printf("QTTSSessionEnd: qtts end failed Error code %d.\n",ret);
    }
    printf("\nEnd TTS!\n");
    return ret;
}
/********************************************audio_http-start*******************************/
bool qvoiceintercom::audioHttpInit()
{
    base_url = new QString("http://www.tuling123.com/openapi/api?key=39a5a489acd12eeafaf8a0d7cc1b139a&info=");
    manager = new QNetworkAccessManager(this);
    timeOut = new QTimer(this);

    connect(manager,SIGNAL(finished(QNetworkReply*)),this,SLOT(replyFinished(QNetworkReply*)));
    connect(timeOut, SIGNAL(timeout()), this, SLOT(handleTimeOut()));
    qDebug("Http Connected");
    return true;
}
void qvoiceintercom::turingInput(QString str)
{
    printf("[Enter tuiringInput]");
    QDir::setCurrent(JSON_DIR);
    fjson.setFileName("json.txt");
    if(!fjson.open(QIODevice::WriteOnly)){
        qDebug() << "Error:Cannot open Json file.";
        return ;
    }
    turing_url = *base_url + str;
    qDebug()<< turing_url << endl <<"Waiting ...." << endl;
    timeOut->start(10000);
    manager->get(QNetworkRequest(QUrl(turing_url)));
}

void qvoiceintercom::replyFinished(QNetworkReply *reply)
{
    qDebug("[Enter replyFinished]");
    json_buf.clear();
    json_buf = reply->readAll();
    qDebug() << tr(json_buf.data());

    rst_analyse(json_buf,1);
    ui->textEdit->append(tr("<h5><font color=black>[小灵]") + QString(tr(vh_code.data())) + tr("</font></h5>"));
    if(strcmp("关闭",th_vd->results) == 0){
        printf("enter this->close\n");
        count = 0;
        printf("Dsp device was closed!\n");
        this->close();
    }
    textToSpeech(vh_code.data(),wavfilename,param);
    dspWriteEntrance();
    free(th_vd->results);
    fjson.write(json_buf);
    fjson.close();
    if (timeOut->isActive())
    {
        timeOut->stop();
    }
}

void qvoiceintercom::handleTimeOut()
{
    qDebug()<<"[Enter handleTimeOut function]\n";
    timeOut->stop();
    if (fjson.isOpen())
    {
        fjson.close();
        ui->textEdit->append(tr("<h5><font color=red>[提示]#获取云端对话已经超时！#</font></h5>"));
        qDebug()<< tr("[提示]#获取云端对话已经超时！#");
    }
    else qDebug()<<"readAll  : within 6 seconds! Next,do something...\n";
}

void qvoiceintercom::rst_analyse(QByteArray qba,bool flag)
{
    vh_code.clear();
    if(0 == flag ){
        if(turingRead(QByteArray("code"),&vh_code,qba,0) == -1)
        {
            qDebug("read error");
        }
    }
    else if(1 == flag){
        if(turingRead(QByteArray("text"),&vh_code,qba,0) == -1)
        {
            qDebug("read error");
        }
    }
    printf("vh_code.data:%s\n",vh_code.data());
}

int qvoiceintercom::turingRead(QByteArray j_name,QByteArray *j_data,QByteArray rst_json,int index)
{
    int i = index;
    char *rst = rst_json.data();
    bool flag = 0;
    QByteArray temp;
    if(i == 0)
        i++;
    while(1)
    {
        //printf("i:%d\n",i);
        while((rst[i] != ':') || (flag == true))
        {
            if(rst[i] == '"')
            {
                printf("rst[%d]:%c flag:%d\n",i,rst[i],flag);
                i++;
                flag = !flag;
                continue;
            }
            temp += rst[i++];
        }
        //printf("temp:%s\n",temp.data());
        //printf("name:%s\n",j_name.data());
        if(strstr(temp,j_name))
            break;
        while((rst[i] != ',') && (rst[i] != '}'))
        {
            i++;
        }
        if(rst[i] == '}')
        {
            qDebug("can not find data!");
            return -1;
        }
        i++;
    }

    //printf("nameend%c\n",rst_json.at(i));
    i++;
    while(!((rst[i] == ',') || (rst[i] == '}')) || (flag == true))
    {
        if(rst[i] == '"')
        {
            i++;
            flag ^= flag;
        }
        if(rst[i]  == '}')break;
        *j_data += rst[i++];
    }
    //printf("%c\n",rst_json.at(i));
    i++;
    return i;
}
/********************************************audio2str-start*******************************/
void qvoiceintercom::audio2strInit()
{
    th_vd = new vd_thread;
    th_read = new rw_thread(0);
    th_write = new rw_thread(1);
    connect(th_read,SIGNAL(readend()),th_vd,SLOT(vd_stop()));
    connect(th_vd,SIGNAL(getresult()),this,SLOT(rst_manage()));
}

void qvoiceintercom::dspReadEntrance()
{
    qDebug()<<"[Enter dspReadEntrance()]\n";
    th_read->start();
}
void qvoiceintercom::dspWriteEntrance()
{
    th_write->start();
    count = 0;
}
void qvoiceintercom::rst_manage()
{
    qDebug()<<"[Enter rst_manage()]\n";
    printf("\nresults =%s=\n",th_vd->results);

    if( strcmp("",th_vd->results) == 0){
        printf("手抖了，或者您的声音太小了！");
        ui->textEdit->append(tr("<h5><font color=red>[提示]#手抖了，或者您的声音太小了！#</font></h5>"));
        pcmPlay(PCM_SPEAKLOUNDLY);
        count = 0;
    }
    else {
        ui->textEdit->append(tr("<h5><font color=blue>[主人]")+ QObject::tr(th_vd->results) + tr("</font></h5>"));
        turingInput(QString(tr(th_vd->results)));
    }
    //com1->msg_send(th_vd->results);
}
/********************************************rw_thread start*******************************/
rw_thread::rw_thread(int stat)
{
    th_stat = stat;
}

void rw_thread::run()
{
    int fDsprd = -1;
    int status =0 ;

    if(th_stat == 1)
    {
        qDebug()<<"write rw_thread is runing";
        pcmPlay(PCM_TEXT_TO_SPEECH);
    }

    if(th_stat == 0)
    {
        if((fDsprd = rdOpen()) < 0){
            return ;
        }
        qDebug()<<"read rw_thread is runing.." << fDsprd ;
        freeSpace.acquire();
        printf("[rw_thread] freeSpace= %d\n",freeSpace.available());
        th_vd->start();

        FILE * fp;
        fp = fopen(PCM_SOUND,"w");
        if (NULL == fp)
        {
            printf("open file error\n");
            exit(1);
        }
        unsigned char dspBuf[LENGTH *RATE * SIZE * CHANNELS / 8] = "";
        while(vdFlag)
        {
            status = read(fDsprd, dspBuf, sizeof(dspBuf));
            if (status != sizeof(dspBuf))
                printf("read wrong number of bytes");
            fwrite(dspBuf, sizeof(dspBuf), 1, fp);
            printf("finished read\n");
            memset(dspBuf,0,sizeof(dspBuf));
        }
        fclose(fp);
        ::close(fDsprd);
        emit readend();
        usleep(200000);
        usedSpace.release();
        printf("[rw_thread] userdSpace= %d\n",usedSpace.available());
    }
}
/********************************************vd_thread start*******************************/
int vd_thread::vd_end()
{
    int ret;
    ret = MSPLogout();
    if( MSP_SUCCESS != ret )
    {
        printf( "MSPLogout failed, error code is: %d", ret );
        return -1;
    }

    return 0;
}

int vd_thread::vd_send(const char * recog_param)
{
    qDebug()<<"[Enter vd_send]\n";

    int vd_ret;
    int ep_status;
    int rslt_status;
    const char *session_id;

    audio_status = 0x02;
    /* 开始一路会话 */
    session_id = QISRSessionBegin( NULL, recog_param, &vd_ret );
    if( 0 != vd_ret )
    {
        printf( "QISRSessionBegin failed, error code is %d\n", vd_ret );
        return -1;
    }

    FILE *f_pcm = NULL;
    long pcmSize = 0;
    int lastAudio = 0 ;
    int audStat = 2 ;
    long pcmCount = 0;
    char rec_result[1024*4] = {0};
    char * wrBuf = NULL;

    usedSpace.acquire();
    printf("[vd_thread] usedSpace= %d\n",usedSpace.available());
    f_pcm = fopen(PCM_SOUND, "rb");
    if (NULL != f_pcm) {
        fseek(f_pcm, 0, SEEK_END);
        pcmSize = ftell(f_pcm);
        printf("pcmSize = %ld\n",pcmSize);
        fseek(f_pcm, 0, SEEK_SET);
        wrBuf = (char *)malloc(pcmSize);
        fread((void *)wrBuf, pcmSize, 1, f_pcm);
        fclose(f_pcm);
        f_pcm = NULL;
    }
    else return -1;
    /* 发送音频数据，获取语音听写结果*/
    while( 1)
    {
        unsigned int len = 6400;
        unsigned int audio_len = 6400;
        if (pcmSize < 12800) {
            len = pcmSize;
            lastAudio = 1;
        }
        audStat = 2;
        if (pcmCount == 0)
            audStat = 1;
        if (len<=0)
        {
            printf("len <= 0 : break\n");
            break;
        }
       printf("\ncsid=%s,count=%ld,aus=%d,",session_id,pcmCount/audio_len,audStat);
       vd_ret = QISRAudioWrite(session_id, (const void *)&wrBuf[pcmCount], len, audStat, &ep_status, &rslt_status);
       printf("eps=%d,rss=%d,ret=%d",ep_status,rslt_status,vd_ret);
       if (vd_ret != 0){
           printf("vd_ret is not 0 : break\n");
           break;
       }
       pcmCount += (long)len;
       pcmSize -= (long)len;
       if (rslt_status == 0) {
           const char *rslt = QISRGetResult(session_id, &rslt_status, 0, &vd_ret);
           if (vd_ret !=0)
           {
               printf("QISRGetResult Failed,vd_ret=%d\n",vd_ret);
               break;
           }
           if (NULL != rslt)
               strcat(rec_result,rslt);
       }
       if (ep_status == MSP_EP_AFTER_SPEECH)
           break;
       usleep(150000);
    }
    /* 获取余下的识别结果*/
    printf("start get the rest of results\n");
    vd_ret=QISRAudioWrite(session_id, (const void *)NULL, 0, 4, &ep_status, &rslt_status);
    if (vd_ret !=0)
    {
        printf("QISRAudioWrite Failed,vd_ret=%d\n",vd_ret);
    }
    free(wrBuf);
    wrBuf = NULL;
    while (rslt_status != 5 && vd_ret == 0) {
        printf("get the rest of results\n");
        const char *rslt = QISRGetResult(session_id, &rslt_status, 0, &vd_ret);
        if (NULL != rslt)
        {
            strcat(rec_result,rslt);
        }
        usleep(150000);
    }
    vd_ret=QISRSessionEnd(session_id, NULL);
    if(vd_ret !=MSP_SUCCESS)
    {
        printf("QISRSessionEnd Failed, vd_ret=%d\n",vd_ret);
    }
    freeSpace.release();
    qDebug()<< "[vd_thread] freeSpace:" << freeSpace.available() << endl;
    results = (char *)malloc(sizeof(rec_result));
    strncpy(results,rec_result,sizeof(rec_result));
    /* sleep 一下很有必要，防止MSC 端无缓存的识别结果时浪费CPU 资源*/
    usleep(100000);
    if( NULL != rec_result )
    {
        emit getresult();
    }
    /* 结束会话，释放资源*/
    session_id = NULL;
    return 0;
}

vd_thread::vd_thread()
{
    int ret = 0;
    /* 用户登录 */
    ret = MSPLogin("Birdman", "6726389!","appid = 54601962");
    if( 0 != ret )
    {
        printf( "MSPLogin failed, error code is %d\n", ret );
        return ;
    }
    printf("\nMSPLogin successful  :%d\n",ret);
    recog_params = "sub=iat, ptt=0, aue=speex-wb;7, auf=audio/L16;rate=16000, ent=sms16k, rst=plain, rse=utf8, vad_speech_tail=1500";
}

void vd_thread::run()
{
    qDebug()<<"vd_thread is runing...\n";
    vd_send(recog_params);
}
void vd_thread::vd_stop()
{
    qDebug("[Enter vd_stop]");
    audio_status = MSP_AUDIO_SAMPLE_LAST ;
}

/***************************************************************************************/
void qvoiceintercom::on_recordButton_pressed()
{
    qDebug()<<"[Enter on_recordButton_pressed]";
    vdFlag = true;
    count++;
    if(count ==1)
        dspReadEntrance();
}
void qvoiceintercom::on_recordButton_released()
{
    qDebug()<<"[Enter on_recordButton_released]";
    vdFlag = false;
}

void qvoiceintercom::on_pushButton_clicked()
{
    printf("[Enter on_pushButton_clicked]");
    count = 0;
    printf("Dsp device was closed!\n");
    this->close();
}
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5. 界面设计