This IS the Avid L2: [Avid-L2] Re: Dolby E frame conversion question

So if I capture the dolby E signals from the embedded audio over SDI is there a special setting to capture them PCM? IIRC PCM is uncompressed audio. For a while now I've only used .mxf media for both video and audio does that file constitute PCM?

Mark once the dolby E signals are captured what did you use to decode and re-encode? Is this something you have to play out to a hardware decoder or can the captured file be decoded directly?

--- In Avid-L2@yahoogroups.com, Bogdan Grigorescu <bogdan_grigorescu@...> wrote:
>
> not lossless, but pretty robust, should be good for 10 generations
> DP571/572 are the HW encoder/decoder from Dolby
>
> There are also SW plugins achieving the same from Neyrink, Rhozet, etc.
>
> BG
> www.finale.tv
>
>
>
> ________________________________
> From: johnrobmoore <bigfish@...>
> To: Avid-L2@yahoogroups.com
> Sent: Monday, November 11, 2013 8:30 PM
> Subject: [Avid-L2] Re: Dolby E frame conversion question
>
>
>
> Â
> Once you ingest it what is used to decode and re-encode? I assume once it's decoded it's the normal 5.1 stems audio I'm use to dealing with. Given this is all data in the dolby E stream is this a virtually loss less process.
>
> --- In Avid-L2@yahoogroups.com, Mark Spano <cutandcover@> wrote:
> >
> > I have, with a Nitris DX, ingested a Dolby E stream (as PCM over SDI),
> > decoded it successfully, re-encoded it to Dolby E, and spit it out (over
> > SDI) back to an SR machine. Only other caveat I'd say is make sure you
> > record at 24-bit / 48 kHz. The Dolby E stream is at least 20-bits, so
> > decimating to 16-bit will not work.
> >
> >
> > On Mon, Nov 11, 2013 at 10:06 PM, johnrobmoore <bigfish@> wrote:
> >
> > >
> > >
> > > Do you have to go back to the audio suite to do the dolby E relay. I've
> > > not dealt much with Dolby E encoding but I do know on the SR decks the
> > > audio tracks must be set to data mode for Dolby E IIRC. I don't recall if
> > > Avid can ingest a Dolby E stream and spit it back out. I've never tried but
> > > the Dolby E signal is screaming hot when on the level meters again IIRC.
> > > Can anyone nudge my misrememberance into some actually correct procedures
> > > for dealing with Dolby E in an Avid world if that is at all possible.
> > >
> > > --- In Avid-L2@yahoogroups.com, <tcurren@> wrote:
> > > >
> > > > Thanks guys. I'll do the relay to the 59.94 method to be safe.
> > > >
> > > >
> > > > ---In Avid-L2@yahoogroups.com, <bogdan_grigorescu@> wrote:
> > > >
> > > > Definitely possible, but not recommended. The positioning of the DolbyE
> > > stream relative to video frame boundaries cannot be guaranteed through the
> > > process.
> > > > So, the right way to do it is to decode, then re-encode at the target
> > > framerate. Or just layback from discrete tracks at the new framerate.
> > > >
> > > >
> > > > cheers,
> > > > BG
> > > > www.finale.tv http://us-mg5.mail.yahoo.com/neo/www.finale.tv
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > From: "tcurren@" <tcurren@>
> > >
> > > > To: Avid-L2@yahoogroups.com
> > > > Sent: Monday, November 11, 2013 4:57 PM
> > > > Subject: [Avid-L2] Dolby E frame conversion question
> > > >
> > > >
> > > > We do a lot of Dolby E mastering, but now a client asked if it would
> > > carry across doing a frame conversion from 23.98 to 59.94. My immediate
> > > reaction is that it should, but I have never tested this so...
> > > >
> > > >
> > > > Anyone here have experience?
> > > >
> > >
> > >
> > >
> >
>