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POCan't set TTS's paras via button
 

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  1. POCan't set TTS's paras via button
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    <p>I tried to set TTS's paras such as pitch and speech rate by pressing a button, but somehow nothing changes when I pressed it...</p> <p>See the code following, what I planned is that once I press the button <strong>SetPara</strong>, the <strong>_pitch</strong> and <strong>_rate</strong> will be set to 0.5, and</p> <pre><code>tts.setPitch(_pitch); tts.setSpeechRate(_rate); </code></pre> <p>will set TTS's pitch and speech rate to 0.5, but the problem now is that after I pressed the <strong>SetPara</strong> button the pitch and speech rate didn't change...</p> <p>Please help me out :))))</p> <pre><code>package com.example.text2speechtrail; import java.util.Locale; import android.app.Activity; import android.os.Bundle; import android.speech.tts.TextToSpeech; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; public class MainActivity extends Activity implements TextToSpeech.OnInitListener { /** Called when the activity is first created. */ private TextToSpeech tts; private Button btnSpeak; private EditText txtText; private Button btnSetPara; private EditText getPitch; private EditText getRate; public float _pitch; public float _rate; String _string_pitch = null; String _string_rate = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); tts = new TextToSpeech(this, this); btnSpeak = (Button) findViewById(R.id.btnSpeak); btnSetPara = (Button) findViewById(R.id.setPara); txtText = (EditText) findViewById(R.id.txtText); getPitch = (EditText) findViewById(R.id.getPitch); getRate = (EditText) findViewById(R.id.getRate); btnSetPara.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { SetPara(); } }); // button on click event btnSpeak.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { speakOut(); } }); } public void SetPara(){ _pitch = (float) 0.5; _rate = (float) 0.5; } @Override public void onDestroy() { // Don't forget to shutdown tts! if (tts != null) { tts.stop(); tts.shutdown(); } super.onDestroy(); } @Override public void onInit(int status) { if (status == TextToSpeech.SUCCESS) { int result = tts.setLanguage(Locale.ENGLISH); tts.setPitch(_pitch); tts.setSpeechRate(_rate); if (result == TextToSpeech.LANG_MISSING_DATA || result == TextToSpeech.LANG_NOT_SUPPORTED) { Log.e("TTS", "This Language is not supported"); } else { btnSpeak.setEnabled(true); speakOut(); } } else { Log.e("TTS", "Initilization Failed!"); } } private void speakOut() { String text = txtText.getText().toString(); tts.speak(text, TextToSpeech.QUEUE_FLUSH, null); } } </code></pre>
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