Hello Guys, Hope You all are doing Well !!!.
Today I am going to put an example of Text to Speech(TTS) in Android. Assume You are working on a project in which if user want to listen the text . In that case You have to use TTS(Text To Speech)Api of Android.
The Android platform includes a TTS engine (android.speech.tts) that enables devices to perform speech synthesis. You can use the TTS engine to have your applications “read” text to the user. This feature used frequently with Location-Based Services (LBS) applications that allow for hands-free directions. Other applications use this feature for users who have reading or sight problems.
The Android TTS engine supports a variety of languages, including English (in American or British accents), French, German, Italian, and Spanish. The synthesized speech can be played immediately or saved to an audio file, which can be treated like any other audio file.
Today I am going to put an example of Text to Speech(TTS) in Android. Assume You are working on a project in which if user want to listen the text . In that case You have to use TTS(Text To Speech)Api of Android.
The Android platform includes a TTS engine (android.speech.tts) that enables devices to perform speech synthesis. You can use the TTS engine to have your applications “read” text to the user. This feature used frequently with Location-Based Services (LBS) applications that allow for hands-free directions. Other applications use this feature for users who have reading or sight problems.
The Android TTS engine supports a variety of languages, including English (in American or British accents), French, German, Italian, and Spanish. The synthesized speech can be played immediately or saved to an audio file, which can be treated like any other audio file.
Here I am going to show the two use case of TTS. One is simple text to speech example(img1) and another
is speak time example(img2).
just create following java files inside your src folder and xml file under layout folder of eclipse project
Java File
1.TextToSpeechHome.java
2. TextToSpeechDemo1.java
3.TextToSpeechDemo2.java
Xml File
1. activity_texttospeech_home.xml
2. activity_texttospeech_demo1.xml
3. activity_texttospeech_demo2.xml
Manifest File
AndroidManifest.xml
Now put following simple code inside your java file one by one
1. TextToSpeechHome.java
package com.sks.texttospeech;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
public class TextToSpeechHome extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_texttospeech_home);
findViewById(R.id.demo1_button).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(new Intent(getBaseContext(), TextToSpeechDemo1.class));
}
});
findViewById(R.id.demo2_button).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(new Intent(getBaseContext(), TextToSpeechDemo2.class));
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_texttospeech_home, menu);
return true;
}
}
2. TextToSpeechDemo1.java
package com.sks.texttospeech;
import java.util.Locale;
import android.app.Activity;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
public class TextToSpeechDemo1 extends Activity implementsOnInitListener{
private TextToSpeech tts;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_texttospeech_demo1);
tts = new TextToSpeech(this, this);
findViewById(R.id.sayit_button).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (tts!=null) {
String text = ((EditText)findViewById(R.id.speak_editText)).getText().toString();
if (text!=null) {
if (!tts.isSpeaking()) {
tts.speak(text, TextToSpeech.QUEUE_FLUSH, null);
}
}
}
}
});
}
@Override
public void onInit(int status) {
// TODO Auto-generated method stub
if (status==TextToSpeech.SUCCESS) {
tts.setLanguage(Locale.getDefault());
} else {
tts = null;
Toast.makeText(this, "Failed to initialize TTS engine.", Toast.LENGTH_SHORT).show();
}
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
if (tts!=null) {
tts.stop();
tts.shutdown();
}
super.onDestroy();
}
}
3.TextToSpeechDemo2.java
package com.sks.texttospeech;
import java.util.Calendar;
import java.util.Locale;
import android.app.Activity;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import android.util.Log;
import android.view.View;
public class TextToSpeechDemo2 extends Activity implementsOnInitListener{
private TextToSpeech tts;
private int mHour, mMinute;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_texttospeech_demo2);
tts = new TextToSpeech(this, this);
findViewById(R.id.speaktime_button).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
final Calendar c = Calendar.getInstance();
mHour = c.get(Calendar.HOUR_OF_DAY);
mMinute = c.get(Calendar.MINUTE);
String myTime= "Now is " + String.valueOf(mHour)+ " Hour "+String.valueOf(mMinute)+ " Minute";
tts.speak(myTime, TextToSpeech.QUEUE_FLUSH, null);
}
});
}
@Override
public void onInit(int status) {
// TODO Auto-generated method stub
if (status == TextToSpeech.SUCCESS) {
int result = tts.setLanguage(Locale.US);
if (result == TextToSpeech.LANG_MISSING_DATA || result == TextToSpeech.LANG_NOT_SUPPORTED) {
Log.e("TTS", "This Language is not supported");
} else {
Log.e("TTS", "This Language is supported");
}
} else {
Log.e("TTS", "Initilization Failed!");
}
}
@Override
public void onDestroy() {
// Don't forget to shutdown tts!
if (tts != null) {
tts.stop();
tts.shutdown();
}
super.onDestroy();
}
}
Now xml file code
1. activity_texttospeech_home.xml
<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"
tools:context=".TextToSpeechHome" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="19dp"
android:text="@string/hello_world"
android:textColor="#A52A2A"
android:textStyle="bold"
android:typeface="serif" />
<Button
android:id="@+id/demo1_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/textView1"
android:layout_marginLeft="40dp"
android:layout_marginTop="51dp"
android:text="Demo1" />
<Button
android:id="@+id/demo2_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="57dp"
android:layout_toRightOf="@+id/demo1_button"
android:text="Demo2" />
</RelativeLayout>
2. activity_texttospeech_demo1.xml
<?xml version="1.0" encoding="utf-8"?>
<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"
tools:context=".MainActivity" >
<Button
android:id="@+id/sayit_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/speak_editText"
android:layout_centerHorizontal="true"
android:layout_marginTop="43dp"
android:text="Say It" />
<EditText
android:id="@+id/speak_editText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView1"
android:layout_centerHorizontal="true"
android:layout_marginTop="77dp"
android:ems="10"
android:inputType="text"
android:text="Hello world!" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="18dp"
android:textStyle="bold"
android:typeface="serif"
android:textColor="#A52A2A"
android:text="TTS Demonstration" />
</RelativeLayout>
3. activity_texttospeech_demo2.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:layout_gravity="center_horizontal"
android:textStyle="bold"
android:textColor="#A52A2A"
android:typeface="serif"
android:text="Speaking Clock" />
<AnalogClock
android:id="@+id/analogClock1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:layout_gravity="center_horizontal"/>
<Button
android:id="@+id/speaktime_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:layout_gravity="center_horizontal"
android:text="Speak Time" />
</LinearLayout>
AndroidManifest.xml
AndroidManifest.xml
<?xmlversion="1.0"encoding="utf-8"?>
<manifestxmlns:android="http://schemas.android.com/apk/res/android"
package="com.sks.texttospeech"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="16"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme">
<activity
android:name="com.sks.texttospeech.TextToSpeechHome"
android:label="@string/app_name">
<intent-filter>
<actionandroid:name="android.intent.action.MAIN"/>
<categoryandroid:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<activityandroid:name="com.sks.texttospeech.TextToSpeechDemo1"/>
<activityandroid:name="com.sks.texttospeech.TextToSpeechDemo2"/>
</application>
</manifest>
This is all about source code for creating above TTS example. Now run your project and test your app by entering some text in input filed.
Changing Language
You can change language to speak by using setLanguage() function. Lot of languages are supported like Canada, French, Chinese, Germany etc.,
tts.setLanguage(Locale.CHINESE); // Chinese language
Changing Pitch Rate
You can set speed pitch level by using setPitch() function. By default the value is 1.0 You can set lower values than 1.0 to decrease pitch level or greater values for increase pitch level.
tts.setPitch(0.6);
Changing Speed Rate
The speed rate can be set using setSpeechRate(). This also will take default of 1.0 value. You can double the speed rate by setting 2.0 or make half the speed level by setting 0.5
tts.setSpeechRate(2);
This is about TTS. For more detail you can visit Developer website of Android.
Happy Coding !!!
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