Make your own Speech Recognition without Google popup

What we will do ?
-> We will prepare Speech Recognition application for Android API 17 and above without calling the default Google Speech Recognizer.

What we will need ?

• Eclipse with ADT
• Android Smartphone with Android version 4.0 OR above.

Step 1 : Create a New Application. Go to File->New->Android Application Project.

Step 2 : Give a Name to your Application as SpeechRecogDemo and package name as com.mia.speechrecogdemo

Click Next continuously and at last click Finish.

Step 3 : Open strings.xml from res->values
strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">SpeechRecogdemo</string>
    <string name="hello_world">Welcome</string>
    <string name="menu_settings">Settings</string>
</resources>

Step 4 : Open activity_main.xml from res->layout.
activity-main.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" >
    <TextView
        android:id="@+id/responseText"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="@string/hello_world"
        android:textSize="35dp" />
</RelativeLayout>

Step 5 : Download package org.apache.commons.lang3 from here. Unzip the zip file and check in the folder for file commons-lang3-3.4.jar

Step 6 : Right-click on SpeechRecogDemo from Project Explorer and select Build Path->Configure Build Path.

Step 7 :  Click on Add External JARs.

Browse to location where you have downloaded org.apache.commons.lang3 and select commons-lang3-3.4.jar.

Add it and press OK.

Step 8 : Open MainActivity.java from src->com.mia.speechrecogdemo.

MainActivity.java

package com.mia.speechrecogdemo;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;

import org.apache.commons.lang3.StringUtils;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.PowerManager;
import android.speech.RecognitionListener;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.TextView;

@SuppressLint("SimpleDateFormat")
public class MainActivity extends Activity {

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

 //wakelock to keep screen on
 protected PowerManager.WakeLock mWakeLock;

 //speach recognizer for callbacks
 private SpeechRecognizer mSpeechRecognizer;

 //handler to post changes to progress bar
 private Handler mHandler = new Handler();

 //ui textview
 TextView responseText;

 //intent for speech recogniztion
 Intent mSpeechIntent;
 
 //this bool will record that it's time to kill P.A.L.
 boolean killCommanded = false;

 //legel commands
 private static final String[] VALID_COMMANDS = {
  "Best Website for Android",
  "what day is it",
  "who are you",
  "exit"
 };
 private static final int VALID_COMMANDS_SIZE = VALID_COMMANDS.length;


 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  responseText = (TextView) findViewById(R.id.responseText);
 }

 @Override
 protected void onStart() {
  mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(MainActivity.this);
  SpeechListener mRecognitionListener = new SpeechListener();
  mSpeechRecognizer.setRecognitionListener(mRecognitionListener);
  mSpeechIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);

  mSpeechIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE,"com.androiddev101.ep8");

  // Given an hint to the recognizer about what the user is going to say
  mSpeechIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
    RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);

  // Specify how many results you want to receive. The results will be sorted
  // where the first result is the one with higher confidence.
  mSpeechIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 20);


  mSpeechIntent.putExtra(RecognizerIntent.EXTRA_PARTIAL_RESULTS, true);

  //aqcuire the wakelock to keep the screen on until user exits/closes app
  final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
  this.mWakeLock = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, TAG);
  this.mWakeLock.acquire();
  mSpeechRecognizer.startListening(mSpeechIntent);
  super.onStart();
 }
 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
  return false;
 }
 private String getResponse(int command){
  Calendar c = Calendar.getInstance();

  String retString =  "I'm sorry, Not Possible for me";
  SimpleDateFormat dfDate_day;
  switch (command) {
  case 0:
   retString = "MADEINANDROID.NET";
     responseText.setOnClickListener(new View.OnClickListener() {                   
                     @Override
                     public void onClick(View arg0) {
                         // TODO Auto-generated method stub
                         Intent i = new Intent(android.content.Intent.ACTION_VIEW, Uri.parse("http://madeinandroid.net/"));
                         startActivity(i);           
                     }
                 });
   break;
  case 1:
   dfDate_day = new SimpleDateFormat("dd/MM/yyyy");
   retString= " Today is " + dfDate_day.format(c.getTime());
   break;
  case 2:
   retString = "Answering Machine";
   break;

  case 3:
   killCommanded = true;
   break;

  default:
   break;
  }
  return retString;
 }

 @Override
 protected void onPause() {
  //kill the voice recognizer
  if(mSpeechRecognizer != null){
   mSpeechRecognizer.destroy();
   mSpeechRecognizer = null;

  }
  this.mWakeLock.release();
  super.onPause();
 }

 private void processCommand(ArrayList<String> matchStrings){
  String response = "I'm sorry, Dave. I'm afraid I can't do that.";
  int maxStrings = matchStrings.size();
  boolean resultFound = false;
  for(int i =0; i < VALID_COMMANDS_SIZE && !resultFound;i++){
   for(int j=0; j < maxStrings && !resultFound; j++){
    if(StringUtils.getLevenshteinDistance(matchStrings.get(j), VALID_COMMANDS[i]) (VALID_COMMANDS[i].length() / 3) ){
     response = getResponse(i);
    }
   }
  }
  
  final String finalResponse = response;
  mHandler.post(new Runnable() {
   public void run() {
    responseText.setText(finalResponse);
   }
  });

 }
 class SpeechListener implements RecognitionListener {
  public void onBufferReceived(byte[] buffer) {
   Log.d(TAG, "buffer recieved ");
  }
  public void onError(int error) {
   //if critical error then exit
   if(error == SpeechRecognizer.ERROR_CLIENT || error == SpeechRecognizer.ERROR_INSUFFICIENT_PERMISSIONS){
    Log.d(TAG, "client error");
   }
   //else ask to repeats
   else{
    Log.d(TAG, "other error");
    mSpeechRecognizer.startListening(mSpeechIntent);
   }
  }
  public void onEvent(int eventType, Bundle params) {
   Log.d(TAG, "onEvent");
  }
  public void onPartialResults(Bundle partialResults) {
   Log.d(TAG, "partial results");
  }
  public void onReadyForSpeech(Bundle params) {
   Log.d(TAG, "on ready for speech");
  }
  public void onResults(Bundle results) {
   Log.d(TAG, "on results");
   ArrayList<String> matches = null;
   if(results != null){
    matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
    if(matches != null){
     Log.d(TAG, "results are " + matches.toString());
     final ArrayList<String> matchesStrings = matches;
     processCommand(matchesStrings);
     if(!killCommanded)
      mSpeechRecognizer.startListening(mSpeechIntent);
     else
      finish();

    }
   }

  }
  public void onRmsChanged(float rmsdB) {
   //   Log.d(TAG, "rms changed");
  }
  public void onBeginningOfSpeech() {
   Log.d(TAG, "speach begining");
  }
  public void onEndOfSpeech() {
   Log.d(TAG, "speach done");
  }

 };

}

Step 9 : Run the application in your Android Phone.Watch the video below to see the output.

Stay Tuned with Made In Android