Cannot choose 44kHz Format from Timeline PTT?

Grazie wrote on 3/24/2006, 5:17 AM
PTT AUDIO ISSUE

I have Media which includes the 44kHz stream.

I have used the same Media in a project which is set up for 44kHz.

I edit all in 44kHz.

Why then does Print To Tape from the timeline insist on using 48kHz?


The whole project is 44kHz audio, except when I PTT from Timeline - PTT insists on this 48kHz.

I then decide to create my own "44kHz" Print To Tape Template. I save it as my 44kHz template. I use the Floppy Disc Icon. I then return to the Template "conform" chooser menu to find that my 44kHz option is not there! Why can't I use the 44kHz Print To Tape template I created?

However, when I choose to "Render As" then my 44kHz template IS displayed AND is available. This to me does not make sense.

This has resulted in a nasty sounding audio stream to my PTT tests done from the Timeline.

However, just tested the same process, but this time RENDERED to file and then used this in the PTT option from the VidCap software. Result? Perfect! Not distorted.

Help!

Grazie

Comments

Former user wrote on 3/24/2006, 7:35 AM
All video audio should be either 48 or 32, preferably 48, that is the standard. 44.1 is strictly a CD audio standard.

Chances are the vidcap is internally converting to 48 whereas Vegas is trying to do what you tell it which it can't.

If you are doing video, you should be working at 48.

Dave T2
Grazie wrote on 3/24/2006, 8:43 AM
Thanks Dave.

Trouble is I also have ACID loops at 44.1kHz. What do I do now?

I've now forced everything into its 48hKhz as should be. I did have 4 pieces of media that were at 44.1. These were "adjusted" takes by me through SF. THAT'S where they slipped through the net. Gonna keep an eye out for that in the future. PLUS I also have some stills camera footage - looks kinda neat with what I've done to it, but that they are saying they are MOV files with a sample rate of 7.875kHz!!

Grazie
Spot|DSE wrote on 3/24/2006, 8:51 AM
ACID loops at 44.1 will auto-resample when you output them as audio for video tracks.Vegas smart samples everything to 48k when you PTT or make MPEG video/audio.
Former user wrote on 3/24/2006, 9:05 AM
A bit of trivia, 44.1 was chosen partially because a recording of the Beethovens 9th, which was a little over an hour, could fit on one CD.

But 48 has always been the video standard.

Dave T2
Chienworks wrote on 3/24/2006, 9:30 AM
Q: Trouble is I also have ACID loops at 44.1kHz. What do I do now?

A: Do nothing. Vegas does it all for you.
vitalforce2 wrote on 3/24/2006, 9:32 AM
So if it had been Wagner instead of Beethoven, would the CD standard be about 8KHz?

Interesting.
.
Grazie wrote on 3/24/2006, 10:09 AM
Thank you Douglas.

A while back I DID have an issue with a 48 ACID project and hearing the 44.1 loops popping and scratching against a video I did. SO I had to set it back to 44.1 - and that was then fine. So, video projects stay at 48 and Vegas will do their SMART thing - good.

Dave thanks for the Beetie Snippet! I'll use that when I'm next up against an IT Muso . . .should impress 'em.

Grazie
Former user wrote on 3/24/2006, 10:11 AM
Heres a link if you want more

http://www.research.philips.com/newscenter/dossier/optrec/beethoven.html
farss wrote on 3/24/2006, 12:57 PM
Just keep in mind that you are asking more from the CPU in the process. I've found that conforming everything to 48K first can reduce CPU load.