Kung fu type of delay

randyvild2 wrote on 4/16/2003, 6:16 PM

I rendered a 30 minute telecast for a wmv. stream at 100mbs for the net. Well, everything worked great until about 10 minutes into the video when the audio became about 2 seconds behind the video.
What is causing this?
I have tried two renders and the same results.

Randini

Comments

Spot|DSE wrote on 4/16/2003, 11:36 PM

Where can we see this vid to comment/look at the issues? It may well be that the stream is buffering up. Is it the file, or the playback? In other words, does it play locally without problem?

randyvild2 wrote on 4/17/2003, 9:32 PM

Hello Spot,
Im sorry I dont have a site to post it. The Veg4 project when played has no delay its only in the rendered project for media that delays. I even tried opening it with ATI and I get the same Kung Fu like delay.

Randini

Grazie wrote on 4/18/2003, 1:48 AM

randyvild2 - Hiyah, You could post it here for us all to see . . . I'm sure Chienworks won't mind - yeah?

Here are some of the uploaded files for you to view:

http://www.vegasusers.com/vidshare/

There is an upload file FORM here:

http://www.vegasusers.com/vidshare/uploadform

It will give you the instructions on how to do it - yeah?

Tell us how you get on,

Grazie

randyvild2 wrote on 4/18/2003, 3:12 AM

I just thought of something....Could I be getting a delay possibly because I streamed at 100mbs and in settings adjusted the audio from 16 kbps to 96 kbps?

randyvild2 wrote on 4/18/2003, 3:19 AM

Grazie,
Thank you! I uploaded to your first link but I guess Chien has to review it then post it.

Grazie wrote on 4/18/2003, 3:50 AM

You're welcome - Not sure he does "review". . . maybe he is still asleep - yeah?

Look forward to seeing your "issue" - I the meantime you may want to view some of the creations already there - Very stimulating and this free "service" is becoming a valuable way of communicating our works and our "issues".

Enjoy,

Grazie

mikkie wrote on 4/18/2003, 8:21 AM

FWIW, the PC has to decode the wmv for display, as well as read the data at sufficient speed. Slower PC's will have trouble rendering wmv files from the hard drive at 1.8 M per sec., DVDs max out at 9 or so, & I would expect you'd need quite a hefty network to handle a constant 100 mbps stream. Does the problem occur at a lower (more reasonable?) data rate?

randyvild2 wrote on 4/18/2003, 10:50 AM

Mikkie,
I should have no problem with this render and have done it successfully before but this is the third time this has happened. I run a Pent 4 1.8 ghz

You now can see a sample of this problem here: http://www.vegasusers.com/vidshare/textdisp?randini-kung_fu_delay_why.txt

Thanks Chien

Chienworks wrote on 4/18/2003, 11:52 AM

Randy, i think i see what Mikkie is commenting about. You said you encoded it at "100mbps", but i think you really mean "100kbps". 100mpbs would require people to have over 65 T-1 lines running into their homes to stream it! This would be equivalent to over 2100 dialup modem lines running simultaneously. A 30 minute file at this rate would also be over 22GB.

randyvild2 wrote on 4/18/2003, 12:22 PM

Yes, I'm sooo sorry, my bad! It is 100 kbps.

randyvild wrote on 4/19/2003, 1:51 PM

Here is the solution to the problem

http://www.vegasusers.com/vidshare/textdisp?randini-kung_fu_delay_why.txt

Grazie wrote on 4/19/2003, 11:57 PM

Great! So you got the Audio at a rate that it is now behaving itself? - You've done a test? - Very useful Chienworks site - eh?

Grazie