请给我关于这种情况的建议。 在Android中，设备是否有可能等待特殊声音，并在识别出它后发生一些操作。请告诉我你的想法。感谢您的帮助！
更新我尝试了袖珍狮身人面像，并做了很多关于"定义新关键字"的搜索，但我做不到。我使用此代码：
public class PracticeActivity extends Activity implements RecognitionListener, edu.cmu.pocketsphinx.RecognitionListener {
// private static final String KWS_SEARCH = "wakeup";
// private static final String KEYPHRASE = "listen"; //adjust this keyphrase!
//3-
private static final String DIGITS_SEARCH = "digits";
private edu.cmu.pocketsphinx.SpeechRecognizer recognizer;
private MediaPlayer mediaPlayer;
@Override
public void onCreate(Bundle state) {
super.onCreate(state);
setContentView(R.layout.practice);
((TextView) findViewById(R.id.caption_text))
.setText("Preparing the recognizer");
new AsyncTask<Void, Void, Exception>() {
@Override
protected Exception doInBackground(Void... params) {
try {
Assets assets = new Assets(PracticeActivity.this);
File assetDir = assets.syncAssets();
setupRecognizer(assetDir);
} catch (IOException e) {
return e;
}
return null;
}
@Override
protected void onPostExecute(Exception result) {
if (result != null) {
((TextView) findViewById(R.id.caption_text))
.setText("Failed to init recognizer " + result);
} else {
recognizer.startListening(DIGITS_SEARCH);
}
}
}.execute();
}
@Override
public void onDestroy() {
super.onDestroy();
recognizer.cancel();
recognizer.shutdown();
}
/**
* In partial result we get quick updates about current hypothesis. In
* keyword spotting mode we can react here, in other modes we need to wait
* for final result in onResult.
*/
@Override
public void onPartialResult(Hypothesis hypothesis) {
if (hypothesis == null)
return;
String text = hypothesis.getHypstr();
if (text.equals("my phone")) {
((TextView) findViewById(R.id.result_text))
.setText(text);
findViewById(R.id.result).setVisibility(View.VISIBLE);
/* recognizer.cancel();
recognizer.startListening(KWS_SEARCH);*/
}else if (text.equals("where is my phone")){
((TextView) findViewById(R.id.caption_text))
.setText(text);
((TextView) findViewById(R.id.result_text))
.setText("i am here");
}else
recognizer.startListening(DIGITS_SEARCH);
}
@Override
public void onResult(Hypothesis hypothesis) {
}
@Override
public void onReadyForSpeech(Bundle params) {
}
@Override
public void onBeginningOfSpeech() {
}
@Override
public void onRmsChanged(float rmsdB) {
}
@Override
public void onBufferReceived(byte[] buffer) {
}
@Override
public void onEndOfSpeech() {
}
@Override
public void onError(int error) {
}
@Override
public void onResults(Bundle results) {
}
@Override
public void onPartialResults(Bundle partialResults) {
}
@Override
public void onEvent(int eventType, Bundle params) {
}
@Override
public void onTimeout() {
}
private void setupRecognizer(File assetsDir) throws IOException {
File modelsDir = new File(assetsDir, "models");
// The recognizer can be configured to perform multiple searches
// of different kind and switch between them
recognizer = defaultSetup()
.setAcousticModel(new File(assetsDir, "en-us-ptm"))
.setDictionary(new File(assetsDir, "cmudict-en-us.dict"))
.getRecognizer();
recognizer.addListener(this);
/*/2-
File digitsGrammar = new File(modelsDir, "grammar/digits.gram");
recognizer.addKeyphraseSearch(KWS_SEARCH, KEYPHRASE);*/
//3-
File digitsGrammar = new File(modelsDir, "grammar/digits.gram");
recognizer.addKeywordSearch(DIGITS_SEARCH, digitsGrammar);
}
@Override
public void onError(Exception error) {
((TextView) findViewById(R.id.caption_text)).setText(error.getMessage());
}
这是为了digits.gram
my phone /1e-1/
这发生在运行时：
06-08 15:37:38.300 27871-27909/phone_finder.maxsoft.com.whereismyphone I/OpenGLRenderer: Initialized EGL, version 1.4
06-08 15:37:38.310 27871-27909/phone_finder.maxsoft.com.whereismyphone I/OpenGLRenderer: HWUI protection enabled for context , &this =0x7f73c27be0 ,&mEglDisplay = 1 , &mEglConfig = 1943265968
06-08 15:37:38.310 27871-27909/phone_finder.maxsoft.com.whereismyphone D/OpenGLRenderer: Get maximum texture size. GL_MAX_TEXTURE_SIZE is 8192
06-08 15:37:38.310 27871-27909/phone_finder.maxsoft.com.whereismyphone D/OpenGLRenderer: Enabling debug mode 0
06-08 15:37:38.310 27871-27909/phone_finder.maxsoft.com.whereismyphone D/mali_winsys: new_window_surface returns 0x3000, [1440x2560]-format:1
06-08 15:37:38.320 27871-27908/phone_finder.maxsoft.com.whereismyphone I/cmusphinx: INFO: dict.c(320): Allocating 137521 * 32 bytes (4297 KiB) for word entries
06-08 15:37:38.320 27871-27908/phone_finder.maxsoft.com.whereismyphone I/cmusphinx: INFO: dict.c(333): Reading main dictionary: /storage/emulated/0/Android/data/phone_finder.maxsoft.com.whereismyphone/files/sync/cmudict-en-us.dict
06-08 15:37:38.390 27871-27871/phone_finder.maxsoft.com.whereismyphone I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy@2596fa2 time:22196983
06-08 15:37:38.560 27871-27908/phone_finder.maxsoft.com.whereismyphone I/cmusphinx: INFO: dict.c(213): Allocated 1007 KiB for strings, 1662 KiB for phones
06-08 15:37:38.560 27871-27908/phone_finder.maxsoft.com.whereismyphone I/cmusphinx: INFO: dict.c(336): 133420 words read
06-08 15:37:38.560 27871-27908/phone_finder.maxsoft.com.whereismyphone I/cmusphinx: INFO: dict.c(358): Reading filler dictionary: /storage/emulated/0/Android/data/phone_finder.maxsoft.com.whereismyphone/files/sync/en-us-ptm/noisedict
06-08 15:37:38.560 27871-27908/phone_finder.maxsoft.com.whereismyphone I/cmusphinx: INFO: dict.c(213): Allocated 0 KiB for strings, 0 KiB for phones
06-08 15:37:38.560 27871-27908/phone_finder.maxsoft.com.whereismyphone I/cmusphinx: INFO: dict.c(361): 5 words read
06-08 15:37:38.560 27871-27908/phone_finder.maxsoft.com.whereismyphone I/cmusphinx: INFO: dict2pid.c(396): Building PID tables for dictionary
06-08 15:37:38.560 27871-27908/phone_finder.maxsoft.com.whereismyphone I/cmusphinx: INFO: dict2pid.c(406): Allocating 42^3 * 2 bytes (144 KiB) for word-initial triphones
06-08 15:37:38.590 27871-27908/phone_finder.maxsoft.com.whereismyphone I/cmusphinx: INFO: dict2pid.c(132): Allocated 42672 bytes (41 KiB) for word-final triphones
06-08 15:37:38.590 27871-27908/phone_finder.maxsoft.com.whereismyphone I/cmusphinx: INFO: dict2pid.c(196): Allocated 42672 bytes (41 KiB) for single-phone word triphones
06-08 15:37:38.600 27871-27908/phone_finder.maxsoft.com.whereismyphone I/cmusphinx: INFO: kws_search.c(420): KWS(beam: -1080, plp: -23, default threshold 0, delay 10)
06-08 15:37:38.600 27871-27908/phone_finder.maxsoft.com.whereismyphone E/cmusphinx: ERROR: "kws_search.c", line 351: Failed to open keyword file '/storage/emulated/0/Android/data/phone_finder.maxsoft.com.whereismyphone/files/sync/models/grammar/digits.gram': No such file or directory
06-08 15:37:38.600 27871-27908/phone_finder.maxsoft.com.whereismyphone E/cmusphinx: ERROR: "kws_search.c", line 424: Failed to create kws search
06-08 15:37:38.600 27871-27908/phone_finder.maxsoft.com.whereismyphone E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #1
Process: phone_finder.maxsoft.com.whereismyphone, PID: 27871
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:304)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.RuntimeException: Decoder_setKws returned -1
at edu.cmu.pocketsphinx.PocketSphinxJNI.Decoder_setKws(Native Method)
at edu.cmu.pocketsphinx.Decoder.setKws(Decoder.java:151)
at edu.cmu.pocketsphinx.SpeechRecognizer.addKeywordSearch(SpeechRecognizer.java:276)
at phone_finder.maxsoft.com.whereismyphone.PracticeActivity.setupRecognizer(PracticeActivity.java:169)
at phone_finder.maxsoft.com.whereismyphone.PracticeActivity.access$000(PracticeActivity.java:25)
at phone_finder.maxsoft.com.whereismyphone.PracticeActivity$1.doInBackground(PracticeActivity.java:47)
at phone_finder.maxsoft.com.whereismyphone.PracticeActivity$1.doInBackground(PracticeActivity.java:41)
at android.os.AsyncTask$2.call(AsyncTask.java:292)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
我能做些什么来解决？
它被称为"连续语音识别"。如果您尝试使用具有无限循环的Android内置语音识别器API来等待某些单词或命令，它将耗尽大量电池电量。
你可以看看CMUSphinx教程，据我所知，它更快，设备友好：
http://cmusphinx.sourceforge.net/wiki/tutorialandroid