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Feat:Improve the usage of the Recognizer in the Demo to reduce memory… #212

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Feat:Improve the usage of the Recognizer in the Demo to reduce memory… #212

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18 changes: 16 additions & 2 deletions app/src/main/java/org/vosk/demo/VoskActivity.java
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,7 @@ public class VoskActivity extends Activity implements
private SpeechService speechService;
private SpeechStreamService speechStreamService;
private TextView resultView;
private Recognizer rec;

@Override
public void onCreate(Bundle state) {
Expand Down Expand Up @@ -115,6 +116,8 @@ public void onDestroy() {
speechService.shutdown();
}

closeRec();

if (speechStreamService != null) {
speechStreamService.stop();
}
Expand Down Expand Up @@ -204,10 +207,11 @@ private void recognizeFile() {
setUiState(STATE_DONE);
speechStreamService.stop();
speechStreamService = null;
closeRec();
} else {
setUiState(STATE_FILE);
try {
Recognizer rec = new Recognizer(model, 16000.f, "[\"one zero zero zero one\", " +
rec = new Recognizer(model, 16000.f, "[\"one zero zero zero one\", " +
"\"oh zero one two three four five six seven eight nine\", \"[unk]\"]");

InputStream ais = getAssets().open(
Expand All @@ -227,10 +231,11 @@ private void recognizeMicrophone() {
setUiState(STATE_DONE);
speechService.stop();
speechService = null;
closeRec();
} else {
setUiState(STATE_MIC);
try {
Recognizer rec = new Recognizer(model, 16000.0f);
rec = new Recognizer(model, 16000.0f);
speechService = new SpeechService(rec, 16000.0f);
speechService.startListening(this);
} catch (IOException e) {
Expand All @@ -239,6 +244,15 @@ private void recognizeMicrophone() {
}
}

/**
* Release the resources of the Recognizer object
*/
private void closeRec(){
if (rec!=null) {
rec.close();
rec = null;
}
}

private void pause(boolean checked) {
if (speechService != null) {
Expand Down