Is there a way to use Android's Speech Recognition API to output true/false, even when the phone is off?

Question

I'm trying to detect speech for a feature in a machine learning algorithm, but I'm having a hard time running the Speech Recognition API in the background and while the phone is off. I've tried to put the SpeechRecognizer in a service, however, the service gets killed and reports this error:

E/ActivityThread: Service com.test.speechrecognition.services.SpeechDetectionService has leaked ServiceConnection android.speech.SpeechRecognizer$Connection@914d0fc that was originally bound here android.app.ServiceConnectionLeaked: Service com.test.speechrecognition.services.SpeechDetectionService has leaked ServiceConnection android.speech.SpeechRecognizer$Connection@914d0fc that was originally bound here at android.app.LoadedApk$ServiceDispatcher.(LoadedApk.java:1835) at android.app.LoadedApk.getServiceDispatcherCommon(LoadedApk.java:1707) at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:1686) at android.app.ContextImpl.bindServiceCommon(ContextImpl.java:1819) at android.app.ContextImpl.bindService(ContextImpl.java:1749) at android.content.ContextWrapper.bindService(ContextWrapper.java:756) at android.speech.SpeechRecognizer.startListening(SpeechRecognizer.java:286) at com.test.speechrecognition.services.SpeechDetectionService$1.run(SpeechDetectionService.java:56) at android.os.Handler.handleCallback(Handler.java:938) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:223) at android.app.ActivityThread.main(ActivityThread.java:7664) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)

I'm needing the application to track if it detected speech every minute ever ten minutes or so.

Here's the MainActivity.java and SpeechDetectionService.java code:

Main Activity:

public class MainActivity extends AppCompatActivity {
// Create speechRecognizer object
private SpeechRecognizer speechRecognizer;
public static final Integer RecordAudioRequestCode = 1;

private static final String TAG = MainActivity.class.getSimpleName();

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // Check if permissions have been granted
    if (ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
        checkPermission();
    }
}

@Override
protected void onStart() {
    super.onStart();
    Log.d(TAG, "onStart:start SpeechDetectionService");
    startService(new Intent(this, SpeechDetectionService.class));
}

// Permission check function
private void checkPermission() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.RECORD_AUDIO},RecordAudioRequestCode);
    }
}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    if (requestCode == RecordAudioRequestCode && grantResults.length > 0) {
        if(grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            Toast.makeText(this, "Permission Granted", Toast.LENGTH_SHORT).show();
        }
    }
}

SpeechDetectionService:

public class SpeechDetectionService extends Service {
private static final String TAG = SpeechDetectionService.class.getSimpleName();

private SpeechRecognizer speechRecognizer;

@Nullable
@Override
public IBinder onBind(Intent intent) {
    Log.d(TAG, "onBind()");
    return null;
}

@Override
public void onCreate() {
    super.onCreate();
    Log.d(TAG, "onCreate()");


}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    super.onStartCommand(intent, flags, startId);
    Log.d(TAG, "onStartCommand");


    speechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);

    final Intent speechRecognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    speechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    speechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());



    final Handler handler = new Handler();
    final int delay = 10000;
    handler.postDelayed(new Runnable() {
        public void run() {
            speechRecognizer.startListening(speechRecognizerIntent);
            handler.postDelayed(this, delay);

        }
    }, delay);

    speechRecognizer.setRecognitionListener(new RecognitionListener() {
        @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) {

        }
    });
    return START_STICKY;
}