How is the JMF related to Java Sound?
The Java Media Framework (JMF) is a high-level API, designed mainly for easy playback of multimedia files, video as well as audio. Java Sound, on the other hand, is a rather low-level API, designed for detailed control of the audio and MIDI hardware. The ‘performance pack’ versions of JMF use Java Sound to play and capture sound data. Because of this, they include the Java Sound implementation. This implementation is the same as in the JDK (but sometimes a bit newer). The ‘all-java’ version of JMF uses sun.audio classes to playback sound (capture is not possible here). So this version doesn’t include a Java Sound implementation.