AmigaActive (2073/2307)

From:Richard Lane
Date:29 Oct 2000 at 19:54:41
Subject:Re: MP3 decoding/MakeCD

Hello Neil

On 29-Oct-00, Neil Bothwick wrote:

>> Last week for the first time I tried decoding MP3's to CD on the fly. Even
>> giving MakeCD every spare bit of ram I had as a buffer I suffered buffer
>> underuns. I solved this by setting the write speed of audio CD's to "2",
>> works a treat, though it's a bit upsetting when I have a 12x speed burner.
>> :)
>
> You shouldn't get underruns if you have a lrge enough buffer in MAkeCD
> and burn TAO. since MakeCD is able to pause between tracks in TAO, a
> buffer large enough to hold the largest single track will avoid any
> underruns.

At the time my buffer was about 25mb, though the MP3's I was writing were
rather large as most of them are 8-10 minute tracks.

> You won't get 12X MP3 decoding on any current Amiga.

I know, but I love showing off that I've got the fastest (for the moment) CD
writer available. :)

> My CSPPC just about
> managed 7X on-the fly. A 20MB buffer ensured I got no underruns on my 8X
> writer.

Looks like the only way I'm gong to speed this up is chucking more buffer ram
to MakeCD, and/or buying a PPC.



Richard Lane. - richard@amiga.prestel.co.uk
Web site - http://www.magnumopus.co.uk


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