[PD] nForce chipset

Sean Costello seancostello2003 at comcast.net
Fri Dec 12 21:37:55 CET 2003

The Dolby Encoder in the nForce/XBox is based around a Parthus DSP core
(similar to a Motorola 563XX DSP). Besides being proprietary, the encoder
adds ~50 msec of latency to the signal, which may create a problem for
real-time music applications. The analog outs on the XBox (under Linux) are
supposed to have about 8 msec latency, so presumably the nForce is the same.

Are you unable to access the 6 outputs on the nForce boards as analog outs?
Or is it just stereo analog, SPDIF digital?

Sean Costello

----- Original Message ----- 
From: "Marc Lavallée" <odradek at videotron.ca>
To: "Malte Steiner" <steiner at block4.com>
Cc: <pd-list at iem.at>
Sent: Friday, December 12, 2003 10:17 AM
Subject: Re: [PD] nForce chipset

> On Fri, Dec 12, 2003 at 05:55:37PM +0100, Malte Steiner wrote:
> > maybe an idea for an external, 6 inputs, creating that stream and
> > sending it to the card to let it disassemble and send it to the 6
> > outputs. 2 Cons: - might involve some patents of dolby labs and so costs
> > a fee
> Maybe Dolby would provide a binary only library, but it won't happen since
> they're asking a fee for each copy of software using their technology.
> Maybe it's possible to use a VST plugin for Dolby encoding and the vst~
> external. But I would simply avoid Dolby's technology.
> --
> Marc
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