Synthesizes speech from text for immediate playback or to create a sound file. Text To Speech example in Android

Apps with interfaces that make use of voice have a unique appeal. They tend to make their users feel that they are using something futuristic. Since its early days, Android has had very robust text-to-speech (TTS) functionality.

Android allows you convert your text into voice. Not only you can convert it but it also allows you to speak text in variety of different languages.

Here I am creating a sample for speech to text. In this application which will you speak then it prints in text.

1.      Create an Android project

2.      Add shape for background stylist name as bg_gradient.xml in drawable folder

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >
 
    <gradient
        android:angle="45"
        android:endColor="@color/bg_gradient_end"
        android:startColor="@color/bg_gradient_start"
        android:type="linear" />
</shape>

3.      Add icon name as ico_mic.png.

  4.       My String recourse

<?xml version="1.0" encoding="utf-8"?>
<resources>
 
    <string name="app_name">Speech To Text</string>
    <string name="action_settings">Settings</string>
    <string name="hello_world">Hello world!</string>
    <string name="speech_prompt">Say something&#8230;</string>
    <string name="speech_not_supported">Sorry! Your device doesn\'tsupportspeech input</string>
    <string name="tap_on_mic">Tap on mic to speak</string> 
</resources>

5.       My activity_main.xml file

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/bg_gradient"
    android:orientation="vertical" >
 
    <TextView
        android:id="@+id/txtSpeechInput"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="100dp"
        android:textColor="@color/white"
        android:textSize="26dp"
        android:textStyle="normal" />
 
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="60dp"
        android:gravity="center"
        android:orientation="vertical" >
 
        <ImageButton
            android:id="@+id/btnSpeak"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@null"
            android:src="@drawable/ico_mic" />
 
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"
            android:text="@string/tap_on_mic"
            android:textColor="@color/white"
            android:textSize="15dp"
            android:textStyle="normal" />
    </LinearLayout>
 
</RelativeLayout>

 6.      Add following code in ManiActivity.class

package info.androidhive.speechtotext; 
import java.util.ArrayList;
import java.util.Locale; 
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.view.Menu;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast; 
public class MainActivity extends Activity { 
                private TextView txtSpeechInput;
                private ImageButton btnSpeak;
                private final int REQ_CODE_SPEECH_INPUT = 100; 
                @Override
                protected void onCreate(Bundle savedInstanceState) {
                                super.onCreate(savedInstanceState);
                                setContentView(R.layout.activity_main); 
                                txtSpeechInput = (TextView) findViewById(R.id.txtSpeechInput);
                                btnSpeak = (ImageButton) findViewById(R.id.btnSpeak); 
                                // hide the action bar
                                getActionBar().hide();
                                btnSpeak.setOnClickListener(new View.OnClickListener() {
                                                @Override
                                                public void onClick(View v) {
                                                                promptSpeechInput();
                                                }
                                });
                }
                /**
                 * Showing google speech input dialog
                 * */
                private void promptSpeechInput() {
                                // RecognizerIntent constants for supporting speech recognition through starting an
                                // Intent
                                Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
                                intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
                                                                RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
                                intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
                                intent.putExtra(RecognizerIntent.EXTRA_PROMPT,
                                                                getString(R.string.speech_prompt));
                                try {
                                                startActivityForResult(intent, REQ_CODE_SPEECH_INPUT);
                                } catch (ActivityNotFoundException a) {
                                                Toast.makeText(getApplicationContext(),
                                                                                getString(R.string.speech_not_supported),
                                                                                Toast.LENGTH_SHORT).show();
                                }
                }
                /**
                 * Receiving speech input
                 * */
                @Override
                protected void onActivityResult(int requestCode, int resultCode, Intent data) {
                                super.onActivityResult(requestCode, resultCode, data); 
                                switch (requestCode) {
                                case REQ_CODE_SPEECH_INPUT: {
                                                if (resultCode == RESULT_OK && null != data) { 
                                                                ArrayList<String> result = data
                                                                                  .getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);    txtSpeechInput.setText(result.get(0));
                                                }
                                                break;
                                }
                                }
                }
} 

Now run your application

Next article is -: Text to Speech in Android