Subject: Re: [linux-audio-dev] open-source like hardware
From: Rene Rebe (rene.rebe_AT_gmx.net)
Date: Sun Jan 13 2002 - 16:59:37 EET
From: "Pieter" <pieter.palmers_AT_student.kuleuven.ac.be>
Subject: RE: [linux-audio-dev] open-source like hardware
Date: Sun, 13 Jan 2002 14:56:50 +0100
>
>
> >
> > I would be interessted in a multi-channel (like the Hammerfall or
> > Midiman Delta 1010), maybe having a Motorola or TI DSP to run effects
> > directly on it). Since PCI is a bit ocmplicated to handle, might
> > Firewire be a nice solution?
> >
>
> Would it help to use a DSP with on-chip PCI support?
Shure this would help.
> (I have no experience with PCI. The only thing I know is that ISA was a
> lot easier :)
ok. ISA was _easier_ but: slower, no PNP, dma sucked, ...
> (I like the external box idea... I think it will be easier to get
> good SNR & good EM interference suppression)
Yes. I would prefer the external box for this reasons, too.
I also like the Firewire idea (also I do not know enough about latency
problems). 400MBit/s -> 50MB/s. This should be enough for 136 32bit
channels @ 96kHz:
([400/8]*1024*1024) / (96000*4) = 136.53
- communictaion overhead ...
But something between 16 and 32 channels should be enough for the
beginning.
Using firewire we _only_ need a firewire IO-controler and avoid
destrying mainboards while playing with selfmade PCI-cards.
> Pieter
k33p h4ck1n6
René
-- René Rebe (Registered Linux user: #248718 <http://counter.li.org>)eMail: rene.rebe_AT_gmx.net rene_AT_rocklinux.org
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