Re: Baffeled with IllegalArgumentException exception

From:
Knute Johnson <nospam@rabbitbrush.frazmtn.com>
Newsgroups:
comp.lang.java.help
Date:
Wed, 22 Nov 2006 08:40:15 -0800
Message-ID:
<P3%8h.5774$kI3.467@newsfe06.phx>
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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