DataLine: getFormat()
import javax.sound.sampled.AudioSystem; import javax.sound.sampled.Clip; import javax.sound.sampled.DataLine; public class Main { public static void main(String[] argv) throws Exception { DataLine.Info info = null; Clip clip = (Clip) AudioSystem.getLine(info); double durationInSecs = clip.getBufferSize() / (clip.getFormat().getFrameSize() * clip.getFormat().getFrameRate()); } }