Reading in MP3s

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DavidSaunders9 - 18 Feb 2005 17:47 GMT

Hi

I am currently performing my University 3rd Year Project and need some
help in using Sun's mp3 plugin to read in mp3 files. I am unsure of
which classes I should be using to read in the data from an mp3 file
and then be able to get the audio bytes and the files AudioFormat out?

Any help would be much appreciated.

David Saunders

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Knute Johnson - 18 Feb 2005 18:51 GMT

> Hi
>
[quoted text clipped - 6 lines]
>
> David Saunders

David:

I haven't tried it but I think all you need to do is install the MP3
plugin and then use AudioSystem.getAudioInputStream() to read the file.

If you want send me a small MP3 file and I'll try it.

Signature

Knute Johnson
email s/nospam/knute/

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DavidSaunders9 - 19 Feb 2005 11:18 GMT

> > Hi
> >
[quoted text clipped - 13 lines]
>
> If you want send me a small MP3 file and I'll try it.

I have sent a sample mp3 file to your email address, thank you ery
much for your help.

When I tried it it still says its an unsupported file exception, but I
may have installed the plugin wrong. Any advice/help is much
appreciated.

David

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DavidSaunders9 - 19 Feb 2005 14:06 GMT

> > Hi
> >
[quoted text clipped - 13 lines]
>
> If you want send me a small MP3 file and I'll try it.

Ok, I have been able to get the mp3 plugin fully installed and working now - wahoo!

The program is able to read in tha file, but a calls to

audioInputStream.getFormat().getFrameSize() and
audioInputStream.getFormat().getSampleSizeInBits() both return values of -1.

Why is this? Is the plugin unable to retrieve the files actual properties?

Any help is much appreciated.

David

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Knute Johnson - 20 Feb 2005 05:04 GMT

>>>Hi
>>>
[quoted text clipped - 26 lines]
>
> David

David:

I'm not an MP3 expert but I believe that the frame size and sample size
are not fixed in an MP3 file. I'll play with your file tomorrow. Been
working all day and just got home.

Signature

Knute Johnson
email s/nospam/knute/

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Reading in MP3s

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