1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.speechrecorder; 18 19 import android.app.Activity; 20 import android.os.Bundle; 21 import android.os.Handler; 22 import android.speech.srec.Recognizer; 23 import android.speech.srec.WaveHeader; 24 import android.speech.srec.MicrophoneInputStream; 25 import android.util.Config; 26 import android.util.Log; 27 import android.view.View; 28 import android.view.View.OnClickListener; 29 import android.widget.Button; 30 import android.widget.RadioButton; 31 import android.widget.TextView; 32 import java.io.BufferedWriter; 33 import java.io.ByteArrayOutputStream; 34 import java.io.File; 35 import java.io.FileFilter; 36 import java.io.FileOutputStream; 37 import java.io.FileWriter; 38 import java.io.IOException; 39 import java.io.InputStream; 40 import java.io.OutputStream; 41 42 public class SpeechRecorderActivity extends Activity { 43 private static final String TAG = "SpeechRecorderActivity"; 44 45 private static final int DURATION_SEC = 7; 46 47 private Handler mHandler; 48 49 private TextView mCommand; 50 private TextView mStatus; 51 private Button mRecord; 52 private Button mRedo; 53 private RadioButton m8KHz; 54 private RadioButton m11KHz; 55 private RadioButton mCall; 56 private RadioButton mDialNanp; 57 private RadioButton mDialPairs; 58 59 private InputStream mMicrophone; 60 private ByteArrayOutputStream mBaos; 61 62 private File mUtterance; 63 private int mSampleRate; 64 private Thread mThread; 65 private boolean mStoppedListening; 66 67 @Override 68 protected void onCreate(Bundle icicle) { 69 super.onCreate(icicle); 70 71 mHandler = new Handler(); 72 73 setContentView(R.layout.recorder); 74 mCommand = (TextView) findViewById(R.id.commandText); 75 mStatus = (TextView) findViewById(R.id.statusText); 76 mRecord = (Button) findViewById(R.id.recordButton); 77 mRedo = (Button) findViewById(R.id.redoButton); 78 m8KHz = (RadioButton)findViewById(R.id.codec8KHzRadioButton); 79 m11KHz = (RadioButton)findViewById(R.id.codec11KHzRadioButton); 80 mCall = (RadioButton)findViewById(R.id.callRadioButton); 81 mDialNanp = (RadioButton)findViewById(R.id.dialNanpRadioButton); 82 mDialPairs = (RadioButton)findViewById(R.id.dialPairsRadioButton); 83 84 mCommand.setText("Please click 'Record' to begin"); 85 mRecord.setOnClickListener(new OnClickListener() { 86 public void onClick(View v) { 87 if (Config.LOGD) { 88 Log.d(TAG, "mRecord.OnClickListener.onClick"); 89 } 90 91 setupRecording(); 92 } 93 }); 94 95 mRedo.setEnabled(false); 96 mRedo.setOnClickListener(new OnClickListener() { 97 public void onClick(View v) { 98 if (Config.LOGD) { 99 Log.d(TAG, "mRedo.onClickListener.onClick"); 100 } 101 102 mUtterance.delete(); 103 104 setupRecording(); 105 } 106 }); 107 108 m8KHz.setText("PCM/16bit/8KHz"); 109 m11KHz.setText("PCM/16bit/11KHz"); 110 m11KHz.setChecked(true); 111 mCall.setChecked(true); 112 } 113 114 private void setupRecording() { 115 Log.d(TAG, "setupRecording"); 116 // disable buttons 117 mRedo.setEnabled(false); 118 mRecord.setEnabled(false); 119 m8KHz.setFocusable(false); 120 m11KHz.setFocusable(false); 121 mCall.setFocusable(false); 122 mDialNanp.setFocusable(false); 123 mDialPairs.setFocusable(false); 124 125 // find the first utterance not covered 126 String[] utterances = mCall.isChecked() ? mCallUtterances : 127 mDialNanp.isChecked() ? mDialNanpUtterances : 128 mDialPairs.isChecked() ? mDialPairsUtterances : 129 null; 130 mUtterance = null; 131 int index = -1; 132 for (int i = 0; i < utterances.length; i++) { 133 File u = new File(getDir("recordings", MODE_PRIVATE), 134 utterances[i].toLowerCase().replace(' ', '_') + ".wav"); 135 if (!u.exists()) { 136 mUtterance = u; 137 index = i; 138 break; 139 } 140 } 141 142 // check if done 143 if (mUtterance == null) { 144 mCommand.setText("Finished: Thank You!"); 145 return; 146 } 147 Log.d(TAG, "going to record " + mUtterance.toString()); 148 149 // fix up UI 150 mCommand.setText("Say: \"" + utterances[index] + "\""); 151 final String status = "item " + (index + 1) + "/" + utterances.length; 152 153 // start the microphone 154 mSampleRate = m8KHz.isChecked()? 8000 : 155 m11KHz.isChecked() ? 11025 : 156 11025; 157 mBaos = new ByteArrayOutputStream(mSampleRate * 2 * 20); 158 try { 159 mMicrophone = new MicrophoneInputStream(mSampleRate, mSampleRate * 15); 160 161 // mMicrophone = logInputStream(mUtterance.toString(), mMicrophone, mSampleRate); 162 } catch (IOException e) { 163 164 } 165 166 // post a number of delayed events to update the UI and to stop recording 167 // after a few seconds. 168 for (int i = 0; i <= DURATION_SEC; i++) { 169 final int remain = DURATION_SEC - i; 170 mHandler.postDelayed(new Runnable() { 171 public void run() { 172 if (remain > 0) { 173 mStatus.setText(status + " Recording... " + remain); 174 } 175 else { 176 mStatus.setText(status); 177 stopRecording(); 178 } 179 } 180 }, i * 1000); 181 } 182 183 // now start a thread to store the audio. 184 mStoppedListening = false; 185 mThread = new Thread() { 186 public void run() { 187 Log.d(TAG, "run audio capture thread"); 188 byte buffer[] = new byte[512]; 189 while (!mStoppedListening) { 190 try { 191 int rtn = 0; 192 rtn = mMicrophone.read(buffer, 0, 512); 193 if (rtn > 0) mBaos.write(buffer, 0, rtn); 194 } catch (IOException e) { 195 } 196 } 197 } 198 }; 199 mThread.start(); 200 201 // to avoid the button click 202 try { 203 Thread.sleep(100); 204 } catch (InterruptedException ie) { 205 } 206 207 } 208 209 private void stopRecording() { 210 Log.d(TAG, "stopRecording"); 211 mStoppedListening = true; 212 try { 213 mThread.join(); 214 } catch (InterruptedException e) { 215 216 } 217 try { 218 OutputStream out = new FileOutputStream(mUtterance.toString()); 219 try { 220 byte[] pcm = mBaos.toByteArray(); 221 Log.d(TAG, "byteArray length " + pcm.length); 222 WaveHeader hdr = new WaveHeader(WaveHeader.FORMAT_PCM, 223 (short)1, mSampleRate, (short)16, pcm.length); 224 hdr.write(out); 225 out.write(pcm); 226 } finally { 227 out.close(); 228 mMicrophone.close(); 229 mBaos.close(); 230 } 231 } catch (IOException e) { 232 233 234 } finally { 235 } 236 237 // stop the recording 238 mRecord.setEnabled(true); 239 240 mRedo.setEnabled(true); 241 242 mCommand.setText("Got it!"); 243 } 244 245 246 private final static String[] mCallUtterances = new String[] { 247 "Call Adam Varro", 248 "Call Alex Lloyd", 249 "Call Amod Karve", 250 "Call Ana Maria Lopez", 251 "Call Ben Sigelman", 252 "Call Chris Vennard", 253 "Call Dana Pogoda", 254 "Call Daryl Pregibon", 255 "Call Davi Robison", 256 "Call David Barrett Kahn", 257 "Call David Hyman", 258 "Call Douglas Gordin", 259 "Call Gregor Rothfuss", 260 "Call James Sheridan", 261 "Call Jason Charo", 262 "Call Jeff Reynar", 263 "Call Joel Ward", 264 "Call John Milton", 265 "Call Lajos Nagy", 266 "Call Lori Sobel", 267 "Call Martin Jansche", 268 "Call Meghan McGarry", 269 "Call Meghan Shakar", 270 "Call Nilka Thomas", 271 "Call Pedro Colijn", 272 "Call Pramod Adiddam", 273 "Call Rajeev Sivaram", 274 "Call Rich Armstrong", 275 "Call Robin Watson", 276 "Call Sam Morales", 277 }; 278 279 private final static String[] mDialPairsUtterances = new String[] { 280 // all possible pairs 281 "Dial 000 000 0000", 282 283 "Dial 101 010 1010", 284 "Dial 111 111 1111", 285 286 "Dial 202 020 2020", 287 "Dial 212 121 2121", 288 "Dial 222 222 2222", 289 290 "Dial 303 030 3030", 291 "Dial 313 131 3131", 292 "Dial 323 232 3232", 293 "Dial 333 333 3333", 294 295 "Dial 404 040 4040", 296 "Dial 414 141 4141", 297 "Dial 424 242 4242", 298 "Dial 434 343 4343", 299 "Dial 444 444 4444", 300 301 "Dial 505 050 5050", 302 "Dial 515 151 5151", 303 "Dial 525 252 5252", 304 "Dial 535 353 5353", 305 "Dial 545 454 5454", 306 "Dial 555 555 5555", 307 308 "Dial 606 060 6060", 309 "Dial 616 161 6161", 310 "Dial 626 262 6262", 311 "Dial 636 363 6363", 312 "Dial 646 464 6464", 313 "Dial 656 565 6565", 314 "Dial 666 666 6666", 315 316 "Dial 707 070 7070", 317 "Dial 717 171 7171", 318 "Dial 727 272 7272", 319 "Dial 737 373 7373", 320 "Dial 747 474 7474", 321 "Dial 757 575 7575", 322 "Dial 767 676 7676", 323 "Dial 777 777 7777", 324 325 "Dial 808 080 8080", 326 "Dial 818 181 8181", 327 "Dial 828 282 8282", 328 "Dial 838 383 8383", 329 "Dial 848 484 8484", 330 "Dial 858 585 8585", 331 "Dial 868 686 8686", 332 "Dial 878 787 8787", 333 "Dial 888 888 8888", 334 335 "Dial 909 090 9090", 336 "Dial 919 191 9191", 337 "Dial 929 292 9292", 338 "Dial 939 393 9393", 339 "Dial 949 494 9494", 340 "Dial 959 595 9595", 341 "Dial 969 696 9696", 342 "Dial 979 797 9797", 343 "Dial 989 898 9898", 344 "Dial 999 999 9999", 345 346 }; 347 348 349 private final static String[] mDialNanpUtterances = new String[] { 350 "Dial 211", 351 "Dial 411", 352 "Dial 511", 353 "Dial 811", 354 "Dial 911", 355 // random numbers 356 "Dial 653 5763", 357 "Dial 263 9072", 358 "Dial 202 9781", 359 "Dial 379 8229", 360 "Dial 874 9139", 361 "Dial 236 0163", 362 "Dial 656 7455", 363 "Dial 474 5254", 364 "Dial 348 8687", 365 "Dial 629 8602", 366 367 //"Dial 272 717 8405", 368 //"Dial 949 516 0162", 369 //"Dial 795 117 7190", 370 //"Dial 493 656 3767", 371 //"Dial 588 093 9218", 372 "Dial 511 658 3690", 373 "Dial 440 301 8489", 374 "Dial 695 713 6744", 375 "Dial 581 475 8712", 376 "Dial 981 388 3579", 377 378 "Dial 840 683 3346", 379 "Dial 303 467 7988", 380 "Dial 649 504 5290", 381 "Dial 184 577 4229", 382 "Dial 212 286 3982", 383 "Dial 646 258 0115", 384 "Dial 427 482 6852", 385 "Dial 231 809 9260", 386 "Dial 681 930 4301", 387 "Dial 246 650 8339", 388 }; 389 } 390
