Record sound: Difference between revisions

import java.io.IOException;

import java.util.concurrent.Executors;

import java.util.concurrent.ScheduledExecutorService;

import java.util.concurrent.TimeUnit;

import java.io.File;

import javax.sound.sampled.AudioFileFormat.*;

public final class SoundRecorder {

public static void main(String[] args) {

SoundRecorder recorder = new SoundRecorder();

ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();

scheduler.schedule( () -> recorder.finish(), 10, TimeUnit.SECONDS);

scheduler.shutdown();

recorder.start();

}

private void start() {

try {

AudioFormat format = createAudioFormat();

DataLine.Info info = new DataLine.Info(TargetDataLine.class, format);

if ( ! AudioSystem.isLineSupported(info) ) {

System.out.println("Data line format is not supported");

Runtime.getRuntime().exit(0);

}

line = (TargetDataLine) AudioSystem.getLine(info);

line.open(format);

line.start();

System.out.println("Start capturing audio");

AudioInputStream audioInputStream = new AudioInputStream(line);

AudioSystem.write(audioInputStream, audioFileType, wavFile);

} catch (LineUnavailableException | IOException exception) {

exception.printStackTrace(System.err);

}

}

private AudioFormat createAudioFormat() {

final float sampleRate = 16_000.0F;

final int sampleSizeInBits = 16;

final int channels = 1;

final boolean signed = true;

final boolean bigEndian = true;

// Monophonic 16-bit PCM audio format

return new AudioFormat(sampleRate, sampleSizeInBits, channels, signed, bigEndian);

}

private void finish() {

line.stop();

line.close();

System.out.println("Finished capturing and recording audio");

}

private TargetDataLine line;

private final File wavFile = new File("C:/Users/Public/SoundRecorder.wav");

private final AudioFileFormat.Type audioFileType = AudioFileFormat.Type.WAVE;

}