session sample rate can be set by a file Error?

John Lundsten wrote on 2/17/2011, 4:56 PM
This is an "unexpected behaviour" or possibly a bug query.

I am a beta tester for AATranslator, we make an app that can convert between many DAW & NLE formats, and Vegas script is one of them..

I have found if I give Vegas v10 a XML (Vegas script file) say a 48kHz session, that has mostly 48k audio sample rate media files, but with one 44.1k sample rate file, there is some very unexpected "ruler" or time display behaviour in Vegas.
1) time expressed as FPS, is fine
2) change the time display to "Samples" and the sample count is correct only for a 44.1kHz sample rate.

IE it is at odds & in contradiction to the, I thought, underlying session sample rate, and the sample rate that must be used to make the FPS numbers correct.

Ok, Vegas can do some clever stuff, with regard to handling media with sample rates other than the session rate, but the behaviour I have found looks more like a bug, than a clever feature to me.
John L





Comments

ChristoC wrote on 2/17/2011, 6:35 PM
How did you get Vegas10 to open a .XML file? I thought Vegas abandoned XML support a while back....

When opening a Vegas .TXT file, Vegas does not necessarily open the session at the session's samplerate, but just at samplerate set in current Project Properties preference..... seems weird but it just copes!

- from ProConvert's XML notes: "Although Pro-Convert writes the correct project sample rate to the XML file, we have seen imports where Vegas did not update the project sample rate value in its properties window. If you experience this problem, simply reenter the appropriate value in Vegas." - perhaps you encounter same behaviour?

John Lundsten wrote on 2/18/2011, 3:52 AM
Thanks ChrstoC yes I'm getting the behaviour rather as Proconvert reports.

My default session for Vegas 10 was 29.97drop, 44.1kHz, 16bit, DV NTSC etc IE as it was set when I installed it.
And until now when I imported a XML file from ProConvert or AATranslator the fps, sample rate etc would be as set in the XML. The 1st deviation from this expected behaviour was with a xml containing mixed sample rates.
Now having set Vegas 10 to 25fps, 48k that's what I get if there are mixed sample rate audio files.

As to "How did you get Vegas10 to open a .XML file? I thought Vegas abandoned XML support a while back.."
Vegas 9 had the xml scripts. I added ones we at AATranslator supply. And I just added the AAT scripts to Vegas 10. In the past i also used the SSL Pro convert scripts.
rraud wrote on 2/18/2011, 9:22 AM
Yeah, Cui Bonosoft's EDL Convert had the XML scripts as well before SSL took over.
If I can't come up with any installation files for EDL Convert 4.2, I'll take a look at AATranslator if that works with Avid and FCP OMF files. And if it's affordable.
John Lundsten wrote on 2/18/2011, 12:08 PM
Yeah, Cui Bonosoft's EDL Convert had the XML scripts as well before SSL took over.

Indeed, FYI the scripts in Pro Convert are called for Eg
Export to EDL Convert
and date from 2004
And why not, they were fine, so no need to change them
ChristoC wrote on 2/18/2011, 1:50 PM
John, thanks for the heads up on scripts; indeed XML Import/Export scripts from VP9 work when copied to VP10 (why on earth did SCS drop them from the installer?????) - here sessions with mixed samplerates seem to work as expected in Vegas when XML is created with ProConvert. Perhaps AAT is making strange XML....

Do you want to continue this conversation privately on email? utopiaaudioAToptusnetDOTcomDOTau

rraud - I did have a version of EDLConvert V4.2.121 you seek somewhere if only I could find it (still searching....) - I later upgraded to the special EDLConvert iSD (v4.2.339) version which has a dongle, and then to ProConvert.
From memory the passcodes for original EDLConvert were HDD specific.....
John Lundsten wrote on 2/19/2011, 6:18 AM
ChistoC, The unexpected behaviour of the sample rate (and the FPS) being taken from default values rather than those in the session generally doesn't happen with either a Xml from ProConvert or AAT.
I have only just come across this whilst working with test files consisting of an AVI, & wav at 48 k+ a 2nd wav at 44.1.
And get the same "unexpected" results from XML's made in Pcon or AAT.

BTW thinking it may be our script & a SSL conv may work better with their own script I loaded them into Veg10.
But none of them run in Vegas10.

ChristoC wrote on 2/19/2011, 12:58 PM
> I have only just come across this whilst working with test files consisting of an AVI, & wav at 48 k+ a 2nd wav at 44.1.
Ahah! ... AVI .... you didn't mention AVI before....

> BTW thinking it may be our script & a SSL conv may work better with their own script I loaded them into Veg10.
yes found same thing. Vegas XML In/Out scripts fine, others not... I see you sent email....