Introduction to the Jaydio framework in the Java class library
Jaydio is an open source Java class library that is specially used to process audio files in Java applications.It provides a convenient method to read, write and operate audio files, and support many common audio formats, such as WAV, MP3 and AAC.
With Jaydio, you can easily read the metadata information of audio files, such as title, artist, album and duration.Here are a sample code for reading WAV audio files:
import edu.stanford.ejalbert.*;
public class JaydioExample {
public static void main(String[] args) {
AudioAttributes audioAttributes = new AudioAttributes();
audioAttributes.setCodec("pcm_s16le");
audioAttributes.setChannels(2);
audioAttributes.setBitRate(16);
AudioInfo audioInfo = null;
try {
audioInfo = AudioInfoIO.read(new java.io.File("audio.wav"));
} catch (java.io.IOException e) {
e.printStackTrace();
}
System.out.println("Title: " + audioInfo.getTitle());
System.out.println("Artist: " + audioInfo.getArtist());
System.out.println("Album: " + audioInfo.getAlbum());
System.out.println("Duration: " + audioInfo.getDurationInSeconds() + " seconds");
}
}
The above code first creates an `AudioAttributes" object, which is used to specify some attributes of audio files, such as codecs, channels, and bit rates.Then, read the specified audio file with the `Read` method in the` AudioInfoio` class, and save the result in the `AudioInfo` object.Finally, through the `AudioInfo` object, we can obtain various metadata information of audio files.
In addition to reading metadata, Jaydio also allows you to copy audio data from one audio file to another.The following is a sample code for writing the audio data of one WAV file into another WAV file:
import edu.stanford.ejalbert.*;
public class JaydioExample {
public static void main(String[] args) {
AudioAttributes audioAttributes = new AudioAttributes();
audioAttributes.setCodec("pcm_s16le");
audioAttributes.setChannels(2);
audioAttributes.setBitRate(16);
AudioInfo audioInfo = new AudioInfo();
audioInfo.setTitle("New Audio");
audioInfo.setArtist("John Doe");
audioInfo.setAlbum("Example Album");
try {
AudioInfoIO.write(audioInfo, audioAttributes, "output.wav", "input.wav");
} catch (java.io.IOException e) {
e.printStackTrace();
}
}
}
The above code first creates a new `AudioInfo` object, and set some attributes, such as title, artist and album.Then, use the `write` method in the` AudioInfoio` class to copy the audio data from the `Input.wav` to the` Output.wav` file.
Jaydio provides many other functions, such as audio editing, gear playback and audio special effects.You can use Jaydio in the project according to your needs to better process audio files.
