Re: Baffeled with IllegalArgumentException exception

My best guess is that your sound card doesn't support ULAW.

It doesnt look like a hardware issue, coz the exception is thrown
randomly. Sometimes the program works fine and plays the audio
properly. But sometimes it fails with IllegalArgumentException !. If it
is a harware problem the exception will be consistent, But in reality
it isnt!!.

-Sundar

Knute Johnson wrote:
Sundar wrote:
Hi,
Iam using java sound API to play the audio. Iam using the Clip class to
play the audio. Frequently i get the following exception...

java.lang.IllegalArgumentException: No line matching interface Clip
supporting format ULAW 8000.0 Hz, 8 bit, mono, 1 bytes/frame, is
supported.

The exception is thrown in the code line "Targetclip = (Clip)
AudioSystem.getLine(info);"

The code snippet which throws the exception is as follows...




//Converting Audio Format
if (format.getEncoding() != AudioFormat.Encoding.PCM_SIGNED) {
System.out.println("*** Converting...");
format = new AudioFormat(
AudioFormat.Encoding.PCM_SIGNED,
format.getSampleRate(),
format.getSampleSizeInBits()*2,
format.getChannels(),
format.getFrameSize()*2,
format.getFrameRate(),
true); // big endian
stream2 = AudioSystem.getAudioInputStream(format, stream2);
}
printDebug("((int)stream2.getFrameLength()*format.getFrameSize()):
" + ((int)stream2.getFrameLength()*format.getFrameSize()));
DataLine.Info info = new DataLine.Info(Clip.class,
stream2.getFormat());
// DataLine.Info info2 = new DataLine.Info(Clip.class,
stream2.getFormat(),
((int)stream2.getFrameLength()*format.getFrameSize()));
Targetclip = (Clip) AudioSystem.getLine(info);


What could be wrong?? Why this exception is thrown? How do we solve
this??

Any links, sample code OR help in any form is highly appreciate.

Thanks in advance

-Sundar


My best guess is that your sound card doesn't support ULAW.

--

Knute Johnson
email s/nospam/knute/

.

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