Sunday, February 10, 2013

[Avid-L2] Re: Transcoding Gotcha I found out the hard way with Convert Audio Checkbox

 

On my current project on SNDX 6.5.0.2 the master clips do not transcode with audio. All my clips are masters from the original ama transcode to DNX 220 and they have audio it's the subsequent transcode to DNX 45 that the audio is not included and they are master clips.

--- In Avid-L2@yahoogroups.com, Roger wrote:
>
> No - up or down, even from one Avid res to another. Audio seems to copy with Avid master clips but not with subclips (I very often transcode subclips). Do a quick test before you commit!
>
> On 10 Feb 2013, at 12:14, adrian califf wrote:
>
> > Thanks for that, so it is only when transcoding to a lower data rate then?.
> >
> > -----Original Message-----
> > From: Roger
> > Sent: Sunday, February 10, 2013 12:01 PM
> > To: Avid-L2@yahoogroups.com
> > Subject: Re: [Avid-L2] Transcoding Gotcha I found out the hard way with
> > Convert Audio Checkbox
> >
> > I think it has been that way for a while. I am on 6.0.3 here and it is the
> > same. Having said that, you don't need to select it for Canon H264s (on a
> > brief test).
> >
> > On 10 Feb 2013, at 11:54, adrian califf wrote:
> >
> > > Is this new in 6.5? I don't recall having to select convert audio in 6.0.3
> > > or v5?
> > > Also does this only apply when transcoding to a lower resolution? If I was
> > > transcoding h264's from a canon 5d to DNXHD-120 would I still have to
> > > select
> > > convert audio?.
> > >
> > > -----Original Message-----
> > > From: Roger
> > > Sent: Sunday, February 10, 2013 10:41 AM
> > > To: Avid-L2@yahoogroups.com
> > > Subject: Re: [Avid-L2] Transcoding Gotcha I found out the hard way with
> > > Convert Audio Checkbox
> > >
> > > You do need to do this with a Transcode but not with a Consolidate. Needs
> > > a
> > > 'copy associated audio?' checkbox.
> > >
> > > On 10 Feb 2013, at 09:05, John Moore wrote:
> > >
> > > > So on my ama transcoding anime today's sphincter tightening lessen is
> > > > when
> > > > transcoding to a lower resolution you need to check the Convert Audio
> > > > check box to get audio included on the transcoded clips. Now my instinct
> > > > was to just check the Convert Video and select DNX 45 after all I'm just
> > > > converting the video and doing nothing to the audio as far as
> > > > conversion.
> > > > Well I moved the new media over to the original project on the offline
> > > > system and voila video no audio. WTF. Turns out the Convert Audio
> > > > Checkbox actually enables the audio to be part of the transcoded clips
> > > > so
> > > > checking it and leaving it at 48K for my sources is the correct thing to
> > > > do to get all the tracks video and audio onto the new low res clip. Now
> > > > here's the gotcha that caused me a moment of sheer panic. Without me
> > > > realizing that the transcoded files were playing audio from the original
> > > > files and not the new ones I'd created I figured I'd just delete my
> > > > transcodes and start
> > > > over. Well guess what the DNX 45 media was deleted along with the audio
> > > > from the original high res media on the original drive. Ouch big time
> > > > especially because this was the only source I didn't have original card
> > > > media for. Fortunately I had previously copied the clips to a third
> > > > drive
> > > > so I was able to find it there and replace it back on the original
> > > > drive.
> > > > When I used reveal file I got a prompt the video and audio were on
> > > > separate drives but when deleting the transcoded clips there was no such
> > > > prompt or warning.
> > > >
> > > > The moral is to always check the convert audio box even if you aren't
> > > > really converting the audio otherwise MOS will be your middle name. I'm
> > > > sure this has come up before but it obviously didn't stick with me until
> > > > tonight. Hopefully this will save someone else from having a massive
> > > > tush
> > > > pucker like I'm still recovering from.
> > > >
> > > > John Moore
> > > >
> > > > Barking Trout Productions
> > > >
> > > > Studio City, CA
> > > >
> > > > bigfish@...
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > > >
> > >
> > > With best wishes,
> > > Roger Shufflebottom
> > > +44 7973 543 660
> > >
> > > [Non-text portions of this message have been removed]
> > >
> > > ------------------------------------
> > >
> > > Search the official Complete Avid-L archives at:
> > > http://archives.bengrosser.com/avid/
> > > Yahoo! Groups Links
> > >
> > >
> >
> > With best wishes,
> > Roger Shufflebottom
> > +44 7973 543 660
> >
> > [Non-text portions of this message have been removed]
> >
> > ------------------------------------
> >
> > Search the official Complete Avid-L archives at:
> > http://archives.bengrosser.com/avid/
> > Yahoo! Groups Links
> >
> >
>
> With best wishes,
> Roger Shufflebottom
> +44 7973 543 660
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

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