The information in this article applies to:
When an applet tries to play a .wav file from an applet using the Applet.play method or the AudioClip.play method, either nothing happens or you get the following console output:
NativeAudioStream: invalid file type
The Sun Microsystems Inc. Java Development Kit (JDK) 1.02 and 1.1 APIs are able to play only AU files. The AU files need to be 8 bit, ulaw, 8000 Hz, and one channel.
Use a product that is capable of creating AU files according to these specifications. Convert the .wav file and change the URL to point to the AU file.
This behavior is by design.
For additional information, please see the following article in the Microsoft Knowledge Base:
Q179850 HOWTO: Playing a .wav file in Java
For the latest Knowledge Base articles and other support information on Visual J++ and the SDK for Java, please see the following pages on the Microsoft Technical Support site:
http://support.microsoft.com/support/visualj/
http://support.microsoft.com/support/java/