Cracking sound at Mpeg-2

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artyom

Cracking sound at Mpeg-2

Post by artyom »

I needed to convert 13 GB of DV to Mpeg-2 file. The result is perfect except it has a cracky sound. I checked twice - original DV file doesn't contain any cracky noises, but mpeg-2 does.

My configuration:
P-IV, 3 GHz
512 DDR-2 RAM
HDD - WD 160 Gb
--------------------

Did anybody face with the same problem? The sound isn't totally cracky, the problem arises only if the sound level changes rapidly.

I did defragmented both drives and cleaned up the register.
heinz-oz

Post by heinz-oz »

I had crackling / popping noises on my DVD's with MSP 6.5. Turned out to be the use of on board AC 97' sound. Based on advice received from Terry Stetler, I replaced the on-board sound with a proper PCI sound card (stay clear of SoundBlaster cards), redid my projects and no more funny noises :D
jchunter

Post by jchunter »

Artyom,
I assume you used version 10 to convert? The conversion process is all software, so a bad sound board is unlikely. So that would leave the audio property settings as possible culprits. What did you set as target audio properties for the mpeg2 file? Also, what are you using to playback the Mpeg file?
heinz-oz

Post by heinz-oz »

I'm glad that my system didn't know that at the time. I could have wasted a whole lot of money for a sound card I didn't need :wink:

Then again, fiddling around with all sorts of sound settings didn't do the trick. 8)

I also did not talk about a bad soundcard but rather the lack of one :) . The AC 97 on board sound is known to have a band width issue on the PCI bus and was certainly to blame in my case, as the results prove.
wh5916
Posts: 28
Joined: Sun May 15, 2005 4:50 am

Re: Cracking sound at Mpeg-2

Post by wh5916 »

artyom wrote:I needed to convert 13 GB of DV to Mpeg-2 file. The result is perfect except it has a cracky sound. I checked twice - original DV file doesn't contain any cracky noises, but mpeg-2 does.

My configuration:
P-IV, 3 GHz
512 DDR-2 RAM
HDD - WD 160 Gb
--------------------

Did anybody face with the same problem? The sound isn't totally cracky, the problem arises only if the sound level changes rapidly.

I did defragmented both drives and cleaned up the register.
I've had a similar problem with the trial of Ulead VideoStudio 10...and it mainly seems to occur when converting from one format to another in some way. Over here, it mainifests itself as random ticks/pops in the audio. This has discouraged me from upgrading.
Black Lab
Posts: 7429
Joined: Wed Dec 15, 2004 3:11 pm
operating_system: Windows 8
System_Drive: C
32bit or 64bit: 64 Bit
Location: Pottstown, Pennsylvania, USA

Post by Black Lab »

I experienced this problem once - popping sound after rendered to mpeg. I subsequently burned it to DVD and the sound was perfect. Have you listened to the DVD or just the mpeg?
heinz-oz

Post by heinz-oz »

I have 16 versions of this particular DVD, each produced with altered sound settings from a DV-AVI source file, all having this sound issue.

The problem went away after using a PCI soundcard in lieu of the onboard AC 97.
KugarWeb
Posts: 43
Joined: Thu Jul 14, 2005 7:47 pm
Location: UK

Post by KugarWeb »

Just using the standard video available in the VS10+ Trial, I've also experienced this problem and I haven't a clue what's causing it! The audio tracks in clip mode are playing fine but as soon as I switch to the Project Mode to play the audio along with the video, it turns all crackly and popping sounds can be heard :?

On an unrelated topic...how does the surround sound mixer exactly work? I've put two tracks of audio on, and moved the necessary circles around to the back and front and they then move themselves when I move one channel and all stay in the same place in the "virtual room". Is this a problem or just a limitation of the trial....or is VS10+ picking up that I only have a 2.1 system connected to my computer?? Surely you can set the settings for a 5.1 system without having a similar system connected to your computer!? I am on the verge of purchasing this product as I hope to own a HDV camcorder sometime in the near future and I believe that the surround sound will be a valued feature for myself, I'm just a little confused as to how it works (upgrading from VS8) :?
Sorry to blabber on. :oops:
Andrew
[b]Computer:[/b] Windows Media Edition, P4 3.0Ghz Processor, 2.5GB RAM, USB 2, Composite, FireWire 1394, SVideo, External HDD 150GB, External HDD 2 - 500GB, Internal HDD 250GB, Ati Radeon X600 256MB Graphics.
[b]Cameras:[/b] Sony HDR-HC1, Sony DCR-HC85E
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