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Article #4876

Re: Delfina DSP card for Amiga

#4876
From: Martin Endres
Date: Thu, 14 Mar 1996 09:25
27 lines
1668 bytes
In article <4i3r74$fmq@erinews.ericsson.se>, Dan Green writes:

> In article <4i00tm$rm3@news3.cts.com>, dan@cts.com (David Newman) writes:
> >Pauli Porkka (pporkka@walli.uwasa.fi) wrote:
> >: Zorro II card so you need A2000/3000/4000. Motorola 56002 40Mhz
> >: 16-bit 48khz. As many channes as you need (well, I don't know
> >: if the DSP can mix more than 100 or so :--))
> >
> >Unfortunately a DSP is not magic.  1 channel of 48Khz 16 bit sound 
> >is 96K/s.  Assuming your samples are spooled from hard disk, Zorro-II
> >can only transfer a max of 2.5 MB/s, which limits you to about 25 
> >channels and that is assuming that your drive have no seek time as they
> >swap between 25 mono AIFF files.  Ie 16 will be your max. At 16 
> >channel your bus will be close to saturated (that is why Sunrise was 
> >only 8 channels).
> 
> Ehh? What is wrong with having the samples stored in RAM? I think that
> the purpose of this card is to work as a sampler for composing music, 
> not for recording 16 realtime HD tracks.

And don't forget, that a fast CPU can MIX the tracks, too.

>>
********************************************
Martin Endres          | endres@ism.isys.net
Osterfeldweg 41,21077 Hamburg,Germany
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Path: arc1-ca.pugleaf.net!news.isys.net!ism!ism!endres
From: endres@ism.isys.net (Martin Endres)
Newsgroups: comp.sys.amiga.audio
Subject: Re: Delfina DSP card for Amiga
Message-ID: <XcYey*mJ0@ism.isys.net>
Date: Thu, 14 Mar 1996 09:25:47 GMT
References: <4i00tm$rm3@news3.cts.com> <4i3r74$fmq@erinews.ericsson.se>
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