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RE: WAS : Sound hardware question..NOW: - terminoligy exp lantion if you would please ..


  • To: <ukha_d@xxxxxxx>
  • Subject: RE: WAS : Sound hardware question..NOW: - terminoligy exp lantion if you would please ..
  • From: "Ian Lowe" <ian@xxxxxxx>
  • Date: Thu, 8 Aug 2002 15:20:22 +0100
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

In it's looser sense, as (ab)used by PC hardware manufacturers...

SP-DIF is simply an audio transport, a protocol involved in moving audio
channels from one place to another. it can handle the six channels of 5.1
Dolby, 2 channels of flat stereo, or even the newer 7.1 EAX signals happily.

The SP-DIF Protocol can be physically carried over Co-Axial, or over
Optical. I *BELIEVE* it's down to the end equipment to simply ignore a
stream it can't process, so you get the situation where some 2.1 equipment
will simply ignore the centre+rear(s) in a 5.1 stream and happily play the
fronts + sub

As I understand it toshiba's TOSlink specifies the physical connector, but
uses the general Sp-DIF protocol, so with a suitable convertor, TOS-link kit
can work with generic Optical SP-DIF kit. (although this may be a historical
curiosity rather than a "here and now" thing: I haven't seen an optical
SP-DIF other than TOS-link for a while!)

HTH

Ian



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