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Trying to add src folder
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Alexander James Wallar committed Jan 19, 2014
1 parent 15ddb6b commit 8747a60
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4 changes: 1 addition & 3 deletions .gitignore
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*.DS_STORE

resources/
com/
com/*
docs/html/
docs/latex/
database/
imgs/
sounds/*

!app/Locabean/src/com/*

!sounds/Cock.wav

*.pdf
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279 changes: 279 additions & 0 deletions app/Locabean/src/com/locaudio/locabean/NodeActivity.java
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package com.locaudio.locabean;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Arrays;

import android.app.Activity;
import android.media.AudioFormat;
import android.media.AudioRecord;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.widget.Button;

import com.musicg.wave.Wave;

public class NodeActivity extends Activity {
private static final int RECORDER_BPP = 16;
private static final String AUDIO_RECORDER_FILE_EXT_WAV = ".wav";
private static final String AUDIO_RECORDER_FOLDER = "AudioRecorder";
private static final String AUDIO_RECORDER_TEMP_FILE = "record_temp.raw";
private static final int RECORDER_SAMPLERATE = 44100;
private static final int RECORDER_CHANNELS = AudioFormat.CHANNEL_CONFIGURATION_MONO;
private static final int RECORDER_AUDIO_ENCODING = AudioFormat.ENCODING_PCM_16BIT;

private AudioRecord recorder = null;
private int bufferSize = 0;
private Thread recordingThread = null;
private boolean isRecording = false;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_node);
bufferSize = AudioRecord.getMinBufferSize(RECORDER_SAMPLERATE,
RECORDER_CHANNELS, RECORDER_AUDIO_ENCODING);
setButtonHandlers();
enableButtons(false);
}

private void setButtonHandlers() {
((Button) findViewById(R.id.btnStart)).setOnClickListener(btnClick);
((Button) findViewById(R.id.btnStop)).setOnClickListener(btnClick);
}

private void enableButton(int id, boolean isEnable) {
((Button) findViewById(id)).setEnabled(isEnable);
}

private void enableButtons(boolean isRecording) {
enableButton(R.id.btnStart, !isRecording);
enableButton(R.id.btnStop, isRecording);
}

private String getFilename() {
String filepath = Environment.getExternalStorageDirectory().getPath();
File file = new File(filepath, AUDIO_RECORDER_FOLDER);

if (!file.exists()) {
file.mkdirs();
}

return (file.getAbsolutePath() + "/test" + AUDIO_RECORDER_FILE_EXT_WAV);
}

private String getTempFilename() {
String filepath = Environment.getExternalStorageDirectory().getPath();
File file = new File(filepath, AUDIO_RECORDER_FOLDER);

if (!file.exists()) {
file.mkdirs();
}

File tempFile = new File(filepath, AUDIO_RECORDER_TEMP_FILE);

if (tempFile.exists())
tempFile.delete();

return (file.getAbsolutePath() + "/" + AUDIO_RECORDER_TEMP_FILE);
}

private void startRecording() {
recorder = new AudioRecord(MediaRecorder.AudioSource.MIC,
RECORDER_SAMPLERATE, RECORDER_CHANNELS,
RECORDER_AUDIO_ENCODING, bufferSize);

int i = recorder.getState();
if (i == 1)
recorder.startRecording();

isRecording = true;

recordingThread = new Thread(new Runnable() {

@Override
public void run() {
writeAudioDataToFile();
}
}, "AudioRecorder Thread");

recordingThread.start();
}

private void writeAudioDataToFile() {
byte data[] = new byte[bufferSize];
String filename = getTempFilename();
FileOutputStream os = null;

try {
os = new FileOutputStream(filename);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

int read = 0;

if (null != os) {
while (isRecording) {
read = recorder.read(data, 0, bufferSize);

if (AudioRecord.ERROR_INVALID_OPERATION != read) {
try {
os.write(data);
} catch (IOException e) {
e.printStackTrace();
}
}
}

try {
os.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}

private void stopRecording() {
if (null != recorder) {
isRecording = false;

int i = recorder.getState();
if (i == 1)
recorder.stop();
recorder.release();

recorder = null;
recordingThread = null;
}

copyWaveFile(getTempFilename(), getFilename());
deleteTempFile();
}

private void deleteTempFile() {
File file = new File(getTempFilename());

file.delete();
}

private void copyWaveFile(String inFilename, String outFilename) {
FileInputStream in = null;
FileOutputStream out = null;
long totalAudioLen = 0;
long totalDataLen = totalAudioLen + 36;
long longSampleRate = RECORDER_SAMPLERATE;
int channels = 1;
long byteRate = RECORDER_BPP * RECORDER_SAMPLERATE * channels / 8;

byte[] data = new byte[bufferSize];

try {
in = new FileInputStream(inFilename);
out = new FileOutputStream(outFilename);
totalAudioLen = in.getChannel().size();
totalDataLen = totalAudioLen + 36;

System.out.println("File size: " + totalDataLen);

WriteWaveFileHeader(out, totalAudioLen, totalDataLen,
longSampleRate, channels, byteRate);

while (in.read(data) != -1) {
out.write(data);
}

in.close();
out.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}

private void WriteWaveFileHeader(FileOutputStream out, long totalAudioLen,
long totalDataLen, long longSampleRate, int channels, long byteRate)
throws IOException {

byte[] header = new byte[44];

header[0] = 'R'; // RIFF/WAVE header
header[1] = 'I';
header[2] = 'F';
header[3] = 'F';
header[4] = (byte) (totalDataLen & 0xff);
header[5] = (byte) ((totalDataLen >> 8) & 0xff);
header[6] = (byte) ((totalDataLen >> 16) & 0xff);
header[7] = (byte) ((totalDataLen >> 24) & 0xff);
header[8] = 'W';
header[9] = 'A';
header[10] = 'V';
header[11] = 'E';
header[12] = 'f'; // 'fmt ' chunk
header[13] = 'm';
header[14] = 't';
header[15] = ' ';
header[16] = 16; // 4 bytes: size of 'fmt ' chunk
header[17] = 0;
header[18] = 0;
header[19] = 0;
header[20] = 1; // format = 1
header[21] = 0;
header[22] = (byte) channels;
header[23] = 0;
header[24] = (byte) (longSampleRate & 0xff);
header[25] = (byte) ((longSampleRate >> 8) & 0xff);
header[26] = (byte) ((longSampleRate >> 16) & 0xff);
header[27] = (byte) ((longSampleRate >> 24) & 0xff);
header[28] = (byte) (byteRate & 0xff);
header[29] = (byte) ((byteRate >> 8) & 0xff);
header[30] = (byte) ((byteRate >> 16) & 0xff);
header[31] = (byte) ((byteRate >> 24) & 0xff);
header[32] = (byte) (2 * 16 / 8); // block align
header[33] = 0;
header[34] = RECORDER_BPP; // bits per sample
header[35] = 0;
header[36] = 'd';
header[37] = 'a';
header[38] = 't';
header[39] = 'a';
header[40] = (byte) (totalAudioLen & 0xff);
header[41] = (byte) ((totalAudioLen >> 8) & 0xff);
header[42] = (byte) ((totalAudioLen >> 16) & 0xff);
header[43] = (byte) ((totalAudioLen >> 24) & 0xff);

out.write(header, 0, 44);
}

private View.OnClickListener btnClick = new View.OnClickListener() {
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btnStart: {
System.out.println("Start Recording");
enableButtons(true);

startRecording();

break;
}
case R.id.btnStop: {
System.out.println("Stop Recording");
enableButtons(false);
stopRecording();

Wave wave = new Wave(getFilename());
System.out.println(Arrays.toString(wave.getFingerprint()));
break;
}
}
}
};
}
57 changes: 57 additions & 0 deletions app/Locabean/src/com/musicg/api/ClapApi.java
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/*
* Copyright (C) 2011 Jacquet Wong
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

package com.musicg.api;

import com.musicg.wave.WaveHeader;

/**
* Api for detecting clap
*
* @author Jacquet Wong
*
*/
public class ClapApi extends DetectionApi{

public ClapApi(WaveHeader waveHeader) {
super(waveHeader);
}

protected void init(){
// settings for detecting a clap
minFrequency = 1000.0f;
maxFrequency = Double.MAX_VALUE;

// get the decay part of a clap
minIntensity = 10000.0f;
maxIntensity = 100000.0f;

minStandardDeviation = 0.0f;
maxStandardDeviation = 0.05f;

highPass = 100;
lowPass = 10000;

minNumZeroCross = 100;
maxNumZeroCross = 500;

numRobust = 4;
}

public boolean isClap(byte[] audioBytes){
return isSpecificSound(audioBytes);
}
}
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