AFAIK, you are correct Mark.
What I can tell you is that for AC3 from LD you *need* the RF
decoder
in the amp to enable the 5.1 matrix.
On DD/DTS 5.1, 6.1 or 7.1 from DVD primarily but also virtually any
other source then either a digital optical or co-axial is needed, it cannot
be
decoded through normal analogue connections to my knowledge. Don't ask me
why,
I just know that that’s it!
As for ITVD, again AFAIK, the digital out allows you to decode the
audio signal off board, it has no function other than that and I have
played
about with the digital out from my Nokia. This leads me to the conclusion
that
Nokia perhaps saw the possibility of broadcasting being done in DD or MPEG
?veloped (mainly) by tem from Philipsd
encoding of choice problem with this. ff board, it has no functio , it
cannot
be decoded(??) and added it just in case however, the broadcasters
have
a problem with this.
IIRC, the EC decided that the digital sound encoding of choice was
to
be the MPEG system developed (mainly) by Philips but the consumers choice
was
DD, so the broadcasters have a tough choice ahead. Go with DD which most
people
have equipment for because of the DVD boom, or go with the EEC standard and
piss everyone off! ;-)
So to answer the actual question, no the Nokia box does not output
DD
or any other digital surround as it does not receive the signal to enable
it to
do so. You *will* get Dolby Surround, but it will only be marginally better
by
using an offboard DAC as the signal is pants
anyway
to start with from ITVD in 99% of cases.
As Mark rightly points out though, Phil is the real expert on this
stuff.
HTH
K.
> -----Original
Message-----
> From:
Mark Harrison [mailto:Mark.Harrison@xxxxxxx]
> Sent:
26 March 2002 17:49
> To:
ukha_d@xxxxxxx
> Subject:
RE: [ukha_d] Audio Digital Data Streams
>
> The following multi-channel formats are carried natively
digital,
and
> include tagging to specify which format they're in. In
addition,
they
> carry further tags to specify how many discrete audio channels
are
> included. Dolby Digital, for example, has several different
varieties,
> between mono and 6 channels (5 full-frequency, plus 1 limited
bandwidth
> intended for Bass.)
>
> - Dolby Digital (between 1 and 6 discrete
channels)
> - DTS (between 1 and 6 discrete channels)
> - MLP (between 2 and 6 discrete channels, I
think??????????)
>
> The following multi-channel formats are carried natively
analogue,
on
> two channels, and don't include any tagging. They just rely on
phase
> processing to try to "decode" a rear
channel.
>
> - Stereo
> - Dolby Surround (three channels modulated into
two)
> - Dolby Pro-logic (four channels modulated into
two)
>
>
> The real expert on all of this is Phil
Harris.
>
> Mark Harrison
> Head of Systems, eKingfisher
>
> -----Original Message-----
> From: Kevin Hawkins [mailto:lists@xxxxxxx]
> Sent: 26 March 2002 16:24
> To: UKHA Group
> Subject: [ukha_d] Audio Digital Data Streams
>
>
> Is all the info
necessary to define the exact format of the data
> encoding always transmitted in an audio digital data stream or
is
it
> sometimes ambiguous ?
> Specifically with
ITV
Digital (assuming it is still around by the
> time you read this), do they ever transmit anything apart from
standard
> stereo or Dolby Surround ? (I heard not as they don't have
the
> bandwidth). When they do transmit Dolby Surround is there
anything
in
> the data stream so that you know it is in surround rather than
ordinary
> stereo ? I do have a digital output from my Nokia ex OD
box.
>
> Kevin
>
>
> ------------------------ Yahoo! Groups Sponsor
---------------------~-->
> Buy Stock for $4.
> No Minimums.
> FREE Money 2002.
>
http://us.click.yahoo.com/BgmYkB/VovDAA/ySSFAA/IBOolB/TM
>
---------------------------------------------------------------------~->
>
> For more information:
http://www.automatedhome.co.uk
> Post message: ukha_d@xxxxxxx
> Subscribe:
ukha_d-subscribe@xxxxxxx
> Unsubscribe:
ukha_d-unsubscribe@xxxxxxx
> List owner:
ukha_d-owner@xxxxxxx
>
> Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
>