Attn : People who convert DV to Mpeg2...

[HaZZaD]

I have been trying in vein to get Tmpegenc to convert DV video to Mpeg2 and ge the audio to sound decent. All my attempts have ended up with somewhat scratchy sound. Its not really noticable, but when compared to the DV source, the mpeg2 converted file lacks base and has a high pitched scrthinss to it. I have followed suggestions of using a 3rd party audio converter in Tmpegenc to no avail. Anyone else experiencing this problem and can offer some advice...

Cheers.

[nfielden]

better not to convert audio to mpeg2, but to leave it as a wave file, especially if your going to author to DV.

[HaZZaD]

I am authoring to dvd-r(or thats the intention). So your saying its best to just convert the video to mpeg2 video stream. What should i do with the audio stream then? Is there an app i can open the native dv file in and extract the audio out so that i could use it in a dvd authroing ap such as spruce up?

Thanks for the reply anyway.

HaZ

[nfielden]

how are you capturing your DV file? To my knowledge it is best to separate the audio and video files before mpeg2 encoding.
I use Premiere to capture, I put the captured video on the timeline, I then export the audio as a wave file. This is an acceptable format for dvd authoring software. I can now export the video only, which can be converted to mpeg2 using TPMGEnc.
It is possible to save a step here by frameserving using 'avisyth', (see this site for more info on frameserving) this means i dont have to export the video to encode it to mpeg2. hope this helps

[HaZZaD]

Thas something i hadnt thought of. Anyway. have tried that, but still get the same prob with the sound. Comparing it to the original source, it sounds slightly high pitched and scrathy at the top end. Have you experienced this? Its really starting to irritate me, as no matter how i try and export the audio, it doesnt come out right. Thanks for the tips by the way...

HaZ

[googlioboy]

Okay, I am assuming you are capturing your audio and video as part of the same file. If you're using Premiere, you need to specify your audio and video settings before capturing. If your aduio settings are different than what you have your camera audio settings at, then this might be your problem. After capturing with Premiere, you just assign the captured file a name and then open it in TMPGenc (try the new version--it's fantastic!). Convert both with TMPGenc to MPEG2. It's that easy.

[HaZZaD]

The issue isnt with the captured video..the sound in that is perfect. the issue arises when i convert the audio either in tmpgenc or premiere. it goes fro sounding very full to having this distorted high end scratchiness. i suspect it does have something to do with settings when converting, but i cant see what. is there anywhere i can find out recommended audio settgins for dvd authoring...or a site that goes into details on how to capture, convert and author dv to MPEG2 for dvd authoring?

Cheers,

HaZ

[$$$]

Try using a sampling rate converter in tmpgenc. Discussed in here
http://www.vcdhelp.com/phpBB/viewtopic.php?t=77479

$

[HaZZaD]

Um what sampling rate would you suggest. Ive tried 44.1 and 32 to no avail. Doesnt dvd need 48 to function correctly? Conversion of sampling rate does not appear to be solving the issue here, Can someone explain why the sound quality degrade so when extracting out of the DV file? Is it the sampling rate that causes it, or the data rate? Or is it something else entirely?

Cheers,

HaZ

[HaZZaD]

OK, seems i figured it out. Seems you have to set Enhance Conversion Rate to Best went extracting the audio. Set it to this and that seems to have resolved the issue. Thanks to all that responded..

HaZ