blocks|key|1671627|text|多亏了Nikolay的建议(参见上面他的回答)，我开发了以下代码，它工作得很好，除非单词在列表中，否则无法识别它们。您可以将其直接复制并粘贴到PocketSphinxDemo代码中的主类上：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1671628|public+class+PocketSphinxActivity+extends+Activity+implements+RecognitionListener
{
private+static+final+String+DIGITS_SEARCH+=+"digits";
private+SpeechRecognizer+recognizer;

@Override
public+void+onCreate(Bundle+state)
{
++++super.onCreate(state);

++++setContentView(R.layout.main);

++++((TextView)+findViewById(R.id.caption_text)).setText("Preparing+the+recognizer");

++++try
++++{
++++++++Assets+assets+=+new+Assets(PocketSphinxActivity.this);
++++++++File+assetDir+=+assets.syncAssets();
++++++++setupRecognizer(assetDir);
++++}
++++catch+(IOException+e)
++++{
++++++++//+oops
++++}

++++((TextView)+findViewById(R.id.caption_text)).setText("Say+up,+down,+left,+right,+forwards,+backwards");

++++reset();
}

@Override
public+void+onPartialResult(Hypothesis+hypothesis)
{
}

@Override
public+void+onResult(Hypothesis+hypothesis)
{
++++((TextView)+findViewById(R.id.result_text)).setText("");

++++if+(hypothesis+!=+null)
++++{
++++++++String+text+=+hypothesis.getHypstr();
++++++++makeText(getApplicationContext(),+text,+Toast.LENGTH_SHORT).show();
++++}
}

@Override
public+void+onBeginningOfSpeech()
{
}

@Override
public+void+onEndOfSpeech()
{
++++reset();
}

private+void+setupRecognizer(File+assetsDir)
{
++++File+modelsDir+=+new+File(assetsDir,+"models");

++++recognizer+=+defaultSetup().setAcousticModel(new+File(modelsDir,+"hmm/en-us-semi"))
+++++++++++++++++++++++++++++++.setDictionary(new+File(modelsDir,+"dict/cmu07a.dic"))
+++++++++++++++++++++++++++++++.setRawLogDir(assetsDir).setKeywordThreshold(1e-20f)
+++++++++++++++++++++++++++++++.getRecognizer();

++++recognizer.addListener(this);

++++File+digitsGrammar+=+new+File(modelsDir,+"grammar/digits.gram");
++++recognizer.addKeywordSearch(DIGITS_SEARCH,+digitsGrammar);
}

private+void+reset()
{
++++recognizer.stop();
++++recognizer.startListening(DIGITS_SEARCH);
}
}|code-block|syntax|javascript|1671629|您的digits.gram文件应该类似于：|offset|length|style|CODE|1671630|up+/1e-1/
down+/1e-1/
left+/1e-1/
right+/1e-1/
forwards+/1e-1/
backwards+/1e-1/|1671631|您应该试验双斜杠//中的阈值以提高性能，其中1e-1表示0.1+(我认为)。我认为最大值是1.0。|1671632|现在是下午5点半，所以我现在可以停止工作了。结果。|1671633|entityMap^0|0|0|2|B|0|0|8|2|M|4|19|3|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@$I|X|J|Y|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|10|8|@$I|11|J|12|K|L]|$I|13|J|14|K|L]|$I|15|J|16|K|L]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|17|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|T|$]]

Thanks to Nikolay's tip (see his answer above), I have developed the following code which works fine, and does not recognize words unless they're on the list. You can copy and paste this directly over the main class in the PocketSphinxDemo code:

<pre><code>public class PocketSphinxActivity extends Activity implements RecognitionListener
{
private static final String DIGITS_SEARCH = "digits";
private SpeechRecognizer recognizer;

@Override
public void onCreate(Bundle state)
{
 super.onCreate(state);

 setContentView(R.layout.main);

 ((TextView) findViewById(R.id.caption_text)).setText("Preparing the recognizer");

 try
 {
 Assets assets = new Assets(PocketSphinxActivity.this);
 File assetDir = assets.syncAssets();
 setupRecognizer(assetDir);
 }
 catch (IOException e)
 {
 // oops
 }

 ((TextView) findViewById(R.id.caption_text)).setText("Say up, down, left, right, forwards, backwards");

 reset();
}

@Override
public void onPartialResult(Hypothesis hypothesis)
{
}

@Override
public void onResult(Hypothesis hypothesis)
{
 ((TextView) findViewById(R.id.result_text)).setText("");

 if (hypothesis != null)
 {
 String text = hypothesis.getHypstr();
 makeText(getApplicationContext(), text, Toast.LENGTH_SHORT).show();
 }
}

@Override
public void onBeginningOfSpeech()
{
}

@Override
public void onEndOfSpeech()
{
 reset();
}

private void setupRecognizer(File assetsDir)
{
 File modelsDir = new File(assetsDir, "models");

 recognizer = defaultSetup().setAcousticModel(new File(modelsDir, "hmm/en-us-semi"))
 .setDictionary(new File(modelsDir, "dict/cmu07a.dic"))
 .setRawLogDir(assetsDir).setKeywordThreshold(1e-20f)
 .getRecognizer();

 recognizer.addListener(this);

 File digitsGrammar = new File(modelsDir, "grammar/digits.gram");
 recognizer.addKeywordSearch(DIGITS_SEARCH, digitsGrammar);
}

private void reset()
{
 recognizer.stop();
 recognizer.startListening(DIGITS_SEARCH);
}
}
</code></pre>

Your <code>digits.gram</code> file should be something like:

<pre><code>up /1e-1/
down /1e-1/
left /1e-1/
right /1e-1/
forwards /1e-1/
backwards /1e-1/
</code></pre>

You should experiment with the thresholds within the double slashes <code>//</code> for performance, where <code>1e-1</code> represents 0.1 (I think). I think the maximum is <code>1.0</code>.

And it's 5.30pm so I can stop working now. Result.

blocks|key|1885448|text|您可以使用addKeywordSearch，它使用关键短语对文件进行归档。例如，每行一个短语，//中每个短语的阈值|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1885449|up+/1.0/
down+/1.0/
left+/1.0/
right+/1.0/
forwards+/1e-1/|code-block|syntax|javascript|1885450|必须选择阈值，以避免误报警。|1885451|entityMap^0|5|G|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

you can use <code>addKeywordSearch</code> which uses to file with keyphrases. One phrase per line with threshold for each phrase in //, for example 

<pre><code>up /1.0/
down /1.0/
left /1.0/
right /1.0/
forwards /1e-1/
</code></pre>

Threshold must be selected to avoid false alarms.

blocks|key|1885530|text|正在更新PocketSphinx演示的Antinous修正案，以使其能够在Android+Studio上运行。这就是我目前所掌握的，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1885531|//Note:+change+MainActivity+to+PocketSphinxActivity+for+demo+use...
public+class+MainActivity+extends+Activity+implements+RecognitionListener+{
private+static+final+String+DIGITS_SEARCH+=+"digits";
private+SpeechRecognizer+recognizer;

/*+Used+to+handle+permission+request+*/
private+static+final+int+PERMISSIONS_REQUEST_RECORD_AUDIO+=+1;

@Override
public+void+onCreate(Bundle+state)+{
++++super.onCreate(state);

++++setContentView(R.layout.main);
++++((TextView)+findViewById(R.id.caption_text))
++++++++++++.setText("Preparing+the+recognizer");

++++//+Check+if+user+has+given+permission+to+record+audio
++++int+permissionCheck+=+ContextCompat.checkSelfPermission(getApplicationContext(),+Manifest.permission.RECORD_AUDIO);
++++if+(permissionCheck+!=+PackageManager.PERMISSION_GRANTED)+{
++++++++ActivityCompat.requestPermissions(this,+new+String[]{Manifest.permission.RECORD_AUDIO},+PERMISSIONS_REQUEST_RECORD_AUDIO);
++++++++return;
++++}

++++new+AsyncTask<Void,+Void,+Exception>()+{
++++++++@Override
++++++++protected+Exception+doInBackground(Void...+params)+{
++++++++++++try+{
++++++++++++++++Assets+assets+=+new+Assets(MainActivity.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+"+%2B+result);
++++++++++++}+else+{
++++++++++++++++reset();
++++++++++++}
++++++++}
++++}.execute();
++++((TextView)+findViewById(R.id.caption_text)).setText("Say+one,+two,+three,+four,+five,+six...");
}

/**
+*+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;
++++}+else+if+(hypothesis+!=+null)+{
++++++++if+(recognizer+!=+null)+{
++++++++++++//recognizer.rapidSphinxPartialResult(hypothesis.getHypstr());
++++++++++++String+text+=+hypothesis.getHypstr();
++++++++++++if+(text.equals(DIGITS_SEARCH))+{
++++++++++++++++recognizer.cancel();
++++++++++++++++performAction();
++++++++++++++++recognizer.startListening(DIGITS_SEARCH);
++++++++++++}else{
++++++++++++++++//Toast.makeText(getApplicationContext(),"Partial+result+=+"+%2Btext,Toast.LENGTH_SHORT).show();
++++++++++++}
++++++++}
++++}
}
@Override
public+void+onResult(Hypothesis+hypothesis)+{
++++((TextView)+findViewById(R.id.result_text)).setText("");
++++if+(hypothesis+!=+null)+{
++++++++String+text+=+hypothesis.getHypstr();
++++++++makeText(getApplicationContext(),+"Hypothesis"+%2Btext,+Toast.LENGTH_SHORT).show();
++++}else+if(hypothesis+==+null){
++++++++makeText(getApplicationContext(),+"hypothesis+=+null",+Toast.LENGTH_SHORT).show();
++++}
}
@Override
public+void+onDestroy()+{
++++super.onDestroy();
++++recognizer.cancel();
++++recognizer.shutdown();
}
@Override
public+void+onBeginningOfSpeech()+{
}
@Override
public+void+onEndOfSpeech()+{
+++reset();
}
@Override
public+void+onTimeout()+{
}
private+void+setupRecognizer(File+assetsDir)+throws+IOException+{
++++//+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"))
++++++++++++//+.setRawLogDir(assetsDir).setKeywordThreshold(1e-20f)
++++++++++++.getRecognizer();
++++recognizer.addListener(this);

++++File+digitsGrammar+=+new+File(assetsDir,+"digits.gram");
++++recognizer.addKeywordSearch(DIGITS_SEARCH,+digitsGrammar);
}
private+void+reset(){
++++recognizer.stop();
++++recognizer.startListening(DIGITS_SEARCH);
}
@Override
public+void+onError(Exception+error)+{
++++((TextView)+findViewById(R.id.caption_text)).setText(error.getMessage());
}

public+void+performAction()+{
++++//+do+here+whatever+you+want
++++makeText(getApplicationContext(),+"performAction+done...+",+Toast.LENGTH_SHORT).show();
}
}|code-block|syntax|javascript|1885532|买者警告:这是一项正在进行中的工作。稍后再来查看。如有建议，将不胜感激。|1885533|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Working on updating Antinous amendment to the PocketSphinx demo to allow it to run on Android Studio. This is what I have so far,

<pre><code>//Note: change MainActivity to PocketSphinxActivity for demo use...
public class MainActivity extends Activity implements RecognitionListener {
private static final String DIGITS_SEARCH = "digits";
private SpeechRecognizer recognizer;

/* Used to handle permission request */
private static final int PERMISSIONS_REQUEST_RECORD_AUDIO = 1;

@Override
public void onCreate(Bundle state) {
 super.onCreate(state);

 setContentView(R.layout.main);
 ((TextView) findViewById(R.id.caption_text))
 .setText("Preparing the recognizer");

 // Check if user has given permission to record audio
 int permissionCheck = ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.RECORD_AUDIO);
 if (permissionCheck != PackageManager.PERMISSION_GRANTED) {
 ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.RECORD_AUDIO}, PERMISSIONS_REQUEST_RECORD_AUDIO);
 return;
 }

 new AsyncTask&lt;Void, Void, Exception&gt;() {
 @Override
 protected Exception doInBackground(Void... params) {
 try {
 Assets assets = new Assets(MainActivity.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 {
 reset();
 }
 }
 }.execute();
 ((TextView) findViewById(R.id.caption_text)).setText("Say one, two, three, four, five, six...");
}

/**
 * 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;
 } else if (hypothesis != null) {
 if (recognizer != null) {
 //recognizer.rapidSphinxPartialResult(hypothesis.getHypstr());
 String text = hypothesis.getHypstr();
 if (text.equals(DIGITS_SEARCH)) {
 recognizer.cancel();
 performAction();
 recognizer.startListening(DIGITS_SEARCH);
 }else{
 //Toast.makeText(getApplicationContext(),"Partial result = " +text,Toast.LENGTH_SHORT).show();
 }
 }
 }
}
@Override
public void onResult(Hypothesis hypothesis) {
 ((TextView) findViewById(R.id.result_text)).setText("");
 if (hypothesis != null) {
 String text = hypothesis.getHypstr();
 makeText(getApplicationContext(), "Hypothesis" +text, Toast.LENGTH_SHORT).show();
 }else if(hypothesis == null){
 makeText(getApplicationContext(), "hypothesis = null", Toast.LENGTH_SHORT).show();
 }
}
@Override
public void onDestroy() {
 super.onDestroy();
 recognizer.cancel();
 recognizer.shutdown();
}
@Override
public void onBeginningOfSpeech() {
}
@Override
public void onEndOfSpeech() {
 reset();
}
@Override
public void onTimeout() {
}
private void setupRecognizer(File assetsDir) throws IOException {
 // 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"))
 // .setRawLogDir(assetsDir).setKeywordThreshold(1e-20f)
 .getRecognizer();
 recognizer.addListener(this);

 File digitsGrammar = new File(assetsDir, "digits.gram");
 recognizer.addKeywordSearch(DIGITS_SEARCH, digitsGrammar);
}
private void reset(){
 recognizer.stop();
 recognizer.startListening(DIGITS_SEARCH);
}
@Override
public void onError(Exception error) {
 ((TextView) findViewById(R.id.caption_text)).setText(error.getMessage());
}

public void performAction() {
 // do here whatever you want
 makeText(getApplicationContext(), "performAction done... ", Toast.LENGTH_SHORT).show();
}
}
</code></pre>

Caveat emptor: this is a work in progress. Check back later. Suggestions would be appreciated.

I've installed the PocketSphinx demo and it works fine under Ubuntu and Eclipse, but despite trying I can't work out how I would add recognition of multiple words.

All I want is for the code to recognize single words, which I can then <code>switch()</code> within the code, e.g. "up", "down", "left", "right". I don't want to recognize sentences, just single words.

Any help on this would be grateful. I have spotted other users' having similar problems but nobody knows the answer so far.

<hr>

One thing which is baffling me is why do we need to use the "wakeup" constant at all?

<pre><code>private static final String KWS_SEARCH = "wakeup";
private static final String KEYPHRASE = "oh mighty computer";
.
.
.
recognizer.addKeyphraseSearch(KWS_SEARCH, KEYPHRASE);
</code></pre>

What has <code>wakeup</code> got to do with anything?

<hr>

I have made some progress (?) : Using <code>addGrammarSearch</code> I am able to use a <code>.gram</code> file to list my words, e.g. <code>up,down,left,right,forwards,backwards</code>, which seems to work well if all I say are those particular words. However, any other words will cause the system to match what is said to the "nearest" word from those stated. Ideally I don't want recognition to occur if words spoken are not in the <code>.gram</code> file...

Recognizing multiple keywords using PocketSphinx

Android Studio

Android

Eclipse

Ubuntu

我已经安装了PocketSphinx演示，它在Ubuntu和Eclipse下运行得很好，但尽管我试了试，我还是想不出如何添加对多个单词的识别。我想要的是让代码识别单个单词，然后我可以在代码中向下，例如"up"，“switch()”，"left"，"right“。我不想识别句子，只想识别单个单词。在这方面的任何帮助都将不...

问使用PocketSphinx识别多个关键字
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问使用PocketSphinx识别多个关键字EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问使用PocketSphinx识别多个关键字
EN