Android 如何在文本到语音转换停止后立即启动语音识别。
我想在文本到语音转换停止后立即启动语音识别。 以下是我采取的步骤 步骤1:初始化语音识别Android 如何在文本到语音转换停止后立即启动语音识别。,android,speech-recognition,text-to-speech,Android,Speech Recognition,Text To Speech,我想在文本到语音转换停止后立即启动语音识别。 以下是我采取的步骤 步骤1:初始化语音识别 mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this); mSpeechRecognizer.setRecognitionListener(recognitionListener); mSpeechRecognizerIntent = new Intent(RecognizerIntent.ACTION_R
mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
mSpeechRecognizer.setRecognitionListener(recognitionListener);
mSpeechRecognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE,
Locale.getDefault());
步骤2:将文本初始化为语音
TextToSpeech myTTS = new TextToSpeech(this, new TextToSpeech.OnInitListener() {
@Override
public void onInit(int status) {
if(myTTS.getEngines().size() == 0){
Toast.makeText(Robo.this,"No Engines Installed",Toast.LENGTH_LONG).show();
}else{
if (status == TextToSpeech.SUCCESS){
//Toast.makeText(MainActivity.this,"Status working.",Toast.LENGTH_LONG).show();
//message = "How may i help you.";
myTTS.setLanguage(Locale.US);
ttsInitialized();
speak("what is your name.");
}
}
}
});
第三步:初始化话语监听器,检查语音是否完成
myTTS.setOnUtteranceProgressListener(new UtteranceProgressListener() {
@Override
public void onStart(String utteranceId) {
}
@Override
public void onDone(String utteranceId) {
//btn.performClick();
myTTS.shutdown();
mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
}
@Override
public void onError(String utteranceId) {
}
});
在onDone()方法中,mSpeechRecognizer.startListening(mSpeechRecognizerIntent);用于启动语音识别,但不启动语音识别。
请调查这个问题。onDone方法指的是一种特定的话语。这意味着,如果对mTTS.speak方法执行多个(连续)调用,则每次都会调用onDone。这显然会给你的目标带来严重的问题 当我必须在TTS完成后执行操作时,我会创建一个类似lastUtteranceId的变量,将其设置为最后一个排队的话语,并在OnOne中检查匹配项,如:
if (utteranceId.equals(lastUtteranceId) {
// TTS finished talking...
}
而且,在那里叫停似乎是个坏主意。您应该在活动的onDestroy方法中调用它
最后一点,我认为onDone在后台线程上运行,而startListening需要在主线程上运行,所以也要检查一下。onDone方法引用了一个特定的语句。这意味着,如果对mTTS.speak方法执行多个(连续)调用,则每次都会调用onDone。这显然会给你的目标带来严重的问题 当我必须在TTS完成后执行操作时,我会创建一个类似lastUtteranceId的变量,将其设置为最后一个排队的话语,并在OnOne中检查匹配项,如:
if (utteranceId.equals(lastUtteranceId) {
// TTS finished talking...
}
而且,在那里叫停似乎是个坏主意。您应该在活动的onDestroy方法中调用它
最后一件事,我认为onDone在后台线程上运行,startListening需要在主线程上运行,所以也要检查一下。正如@Regulus所说,我添加了一个处理程序,它成功了
@Override
public void onDone(String utteranceId) {
Handler mainHandler = new Handler(Looper.getMainLooper());
Runnable myRunnable = new Runnable() {
@Override
public void run() {
mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
} // This is your code
};
mainHandler.post(myRunnable);
}
正如@Regulus所说,我添加了一个处理程序,它成功了
@Override
public void onDone(String utteranceId) {
Handler mainHandler = new Handler(Looper.getMainLooper());
Runnable myRunnable = new Runnable() {
@Override
public void run() {
mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
} // This is your code
};
mainHandler.post(myRunnable);
}