Speech to Text Converter

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Speech to Text converter App

 Method 1 

That is with Default Google Prompt Dialog in Android Studio

This is the most easiest way to create speech to text converter . We have another method also (method 2) that is speech to text converter without dialog box which we will  discuss later.

This code is tested carefully and have 100% accuracy rate. So, you will get the desire result after using it.

activity_main.xml File:-

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
tools:context=".MainActivity">

<ImageButton
android:id="@+id/btnSpeak"
android:layout_width="100dp"
android:layout_height="100dp"
android:background="@null"
android:padding="16dp"
android:layout_gravity="center"
android:src="@drawable/ic_keyboard_voice_black_24dp"
/>

<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:layout_gravity="center"
android:textSize="12sp"
style="@style/TextAppearance.AppCompat.Body1"
android:textColor="@android:color/holo_orange_light"
android:text="@string/text" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="@+id/voiceInput"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textSize="22dp"
android:textAlignment="center"
android:textColor="@android:color/background_dark"/>
</RelativeLayout>

</LinearLayout>

MainActivity.java File:-

package com.example.speech_to_text;

import androidx.appcompat.app.AppCompatActivity;

import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.Locale;

public class MainActivity extends AppCompatActivity {
private static final int REQ_CODE_SPEECH_INPUT = 100;
private TextView txtSpeechInput;
private ImageButton mSpeakBtn;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
txtSpeechInput=findViewById(R.id.voiceInput);
mSpeakBtn = (ImageButton) findViewById(R.id.btnSpeak);
mSpeakBtn.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View v) {
startListening();
}
});

}

private void startListening() {
//Intent to listen to user vocal input and return result in same activity
Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
//Use a language model based on free-form speech recognition.
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());

//Message to display in dialog box
intent.putExtra(RecognizerIntent.EXTRA_PROMPT,
getString(R.string.speech_to_text_info));
try {
startActivityForResult(intent, REQ_CODE_SPEECH_INPUT);
} catch (ActivityNotFoundException a) {
Toast.makeText(getApplicationContext(),
getString(R.string.speech_not_supported),
Toast.LENGTH_SHORT).show();
}
}

@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;
}
}
}


}

String.Xml File:-

resources>
<string name="app_name"> STT converter</string>
<string name="speech_to_text_info">Hello! How can I help you.</string>
<string name="speech_not_supported">speech not supported</string>
<string name="text">Press the button to convert speech into text. </string>
</resources>

Output:-

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