distorted sound at DVinfo.net

Chris Mandel · August 7th, 2004, 09:09 PM

i used this tutorial http://www.dvinfo.net/articles/filmlook/broadway1.php
on how to make the film look. every thing went perfect and the effect is great but the audio is distorted. every time the engine of the car revs on my video there is a loud crackling sound. does anybody know how to fix this?

Glenn Chan · August 7th, 2004, 09:23 PM

1- This post belongs in the audio forum. A moderator will move it shortly.

2- What do you mean by crackling? It might be digital clipping. To hear what digital clipping sounds like, export a sound with the volume bumped up 12dB and then listen to that (right click the clip and select switches --> normalize, then bump things up 12dB in the track level).

If you have clipping there is not much you can do to fix it. Some plug-ins will try to make up information which does not exist (i.e. Waves).

If you know how, you could try posting a mp3 clip of your sound. Export a mp3 from Vegas and put it up on your ISP's webspace.

Chris Mandel · August 8th, 2004, 03:31 AM

i did digital clipping thing you said and yes thats exactly what i hear. how come it does that only when i do the 24p effect? and how do i prevent it?

Rob Lohman · August 9th, 2004, 02:56 AM

I'm not going to move this till we indentify what kind of problem
this is (recording or editing <- most likely).

I'm assuming if you play the original file it does not have this
problem? If so this is an editing problem and the post will be
moved to one of those forums.

The most important question (in my mind) is what software are
you using to do this? Which version? I'm assuming it is Premiere
and it is not the Pro version. Would that be correct?

Ken Tanaka · August 9th, 2004, 10:13 AM

Chris,
This is purely speculation, but I would guess that you may have duplicated your audio tracks as you duplicated your video tracks. This would have the effect of doubling your audio energy, thus presenting a clipped audio effect. Check your audio tracks.

Chris Mandel · August 9th, 2004, 06:57 PM

rob, im using AE 6.0

ken,yes i check and my my sound has doubled, how i do i turn off the sound on the other layer?

August 7th, 2004, 09:09 PM	#1
Chris Mandel New Boot Join Date: Aug 2004 Location: bay area Posts: 10	distorted sound i used this tutorial http://www.dvinfo.net/articles/filmlook/broadway1.php on how to make the film look. every thing went perfect and the effect is great but the audio is distorted. every time the engine of the car revs on my video there is a loud crackling sound. does anybody know how to fix this?

August 9th, 2004, 02:56 AM	#4
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	I'm not going to move this till we indentify what kind of problem this is (recording or editing <- most likely). I'm assuming if you play the original file it does not have this problem? If so this is an editing problem and the post will be moved to one of those forums. The most important question (in my mind) is what software are you using to do this? Which version? I'm assuming it is Premiere and it is not the Pro version. Would that be correct? __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors

August 9th, 2004, 10:13 AM	#5
Ken Tanaka Retired DV Info Net Almunus Join Date: Dec 2001 Location: Chicago, IL Posts: 6,943	Chris, This is purely speculation, but I would guess that you may have duplicated your audio tracks as you duplicated your video tracks. This would have the effect of doubling your audio energy, thus presenting a clipped audio effect. Check your audio tracks. __________________ Lady X Films: A lady with a boring wardrobe...and a global mission. Hey, you don't have enough stuff! Buy with confidence from our sponsors. Hand-picked as the best in the business...Really! See some of my work one frame at a time: www.KenTanaka.com

August 7th, 2004, 09:23 PM	#2
Glenn Chan Inner Circle Join Date: Jun 2003 Location: Toronto, Canada Posts: 4,750	1- This post belongs in the audio forum. A moderator will move it shortly. 2- What do you mean by crackling? It might be digital clipping. To hear what digital clipping sounds like, export a sound with the volume bumped up 12dB and then listen to that (right click the clip and select switches --> normalize, then bump things up 12dB in the track level). If you have clipping there is not much you can do to fix it. Some plug-ins will try to make up information which does not exist (i.e. Waves). If you know how, you could try posting a mp3 clip of your sound. Export a mp3 from Vegas and put it up on your ISP's webspace.

August 8th, 2004, 03:31 AM	#3
Chris Mandel New Boot Join Date: Aug 2004 Location: bay area Posts: 10	i did digital clipping thing you said and yes thats exactly what i hear. how come it does that only when i do the 24p effect? and how do i prevent it?

August 9th, 2004, 06:57 PM	#6
Chris Mandel New Boot Join Date: Aug 2004 Location: bay area Posts: 10	rob, im using AE 6.0 ken,yes i check and my my sound has doubled, how i do i turn off the sound on the other layer?