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List:       linux-sound
Subject:    Re: [linux-audio-dev] streaming from disk to terminatorX added (via
From:       Andy Lo A Foe <andy () alsa-project ! org>
Date:       1999-10-26 6:59:40
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On Mon, 25 Oct 1999, Benno Senoner wrote:

> I doubt it that a CDROM drive can keep up with a nervous scratcher.
> :-)

Well, my Hitachi DVD-ROM does very well. I can get sustained playback 
at 500% (that's like ripping at 5 speed). Reverse playback works at up to
-400% reliably, that's enough for most 'scratching' purposes, unless the
DJs speed their records up 10x for a period of a few seconds :)

> The only solution is to keep in memory 100-200k samples before and past the
> actual playing position, but I think reading backwards from a CDROM drive sucks
> a lot.

Oh, actually I never read 'backwards' from a CD, or for that matter decode
an mp3 backwards. The ringbuffer is about 300K so that's enough for about
2 seconds of music.

Andy
--
AlsaPlayer, http://www.alsa-project.org/~andy/

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