Dolby in ripped music files

Archived from groups: rec.audio.tech (More info?)

On Wed, 01 Jun 2005 14:25:41 -0400, Harlan Messinger
<hmessinger.removethis@comcast.net> wrote:

>Do MP3, WMA, etc., preserve the Dolby Surround information present on
>the CDs from which they are ripped?

More or less, yes.

Archived from groups: rec.audio.tech (More info?)

In <3g6ct6FalnjbU1@individual.net>, on 06/01/05
at 02:25 PM, Harlan Messinger <hmessinger.removethis@comcast.net>
said:

>Do MP3, WMA, etc., preserve the Dolby Surround information present on
>the CDs from which they are ripped?

Dolby Surround is used mostly with video formats. Do you have a
significant number of Dolby Surround encoded CDs?

I suspect that you only have a few encoded CDs. If so, use a high bit
rate for encoding and test a few recordings before commiting large
amounts of time to your ripping.

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Archived from groups: rec.audio.tech (More info?)

Harlan Messinger wrote:
> Do MP3, WMA, etc., preserve the Dolby Surround information present on
> the CDs from which they are ripped?

http://news.bbc.co.uk/2/hi/technology/3550833.stm

Bob

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Archived from groups: rec.audio.tech (More info?)

This reminds me: Is there a good brief summary somewhere of how surround
encoding works? (Yeah, I know, I could go read the patents, but right
now I'm just curious about the general approach.)

Archived from groups: rec.audio.tech (More info?)

Bob Urz wrote:

> Harlan Messinger wrote:
> > Do MP3, WMA, etc., preserve the Dolby Surround information present on
> > the CDs from which they are ripped?

> http://news.bbc.co.uk/2/hi/technology/3550833.stm

About encoding more than two discrete channels into one stream. As for
stereo with surround content it is about choosing suitable encoding
options. An encoder that does not offer control of what kind of stereo
choices it makes does not constitute a suitable encoder, the Fraunhofer
one that comes with Audition offers such choices.

> Bob
>
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