Project & MPEG Audio Ok-DVD Audio crackly Please Help!

[MikeGunter]

Hi,

Assuming you have a video drive for capturing video, and you shoot DV, you should always shoot and capture with the DV AVI. It will be the best quality in which to capture, edit, and prepare for transcode to DVD.

Mike

[MichaelW]

Ok still no luck. Captured via DV into AVI. Clips plays fine. Created Video File which plays with no sound but if I make a dvd the sound is there but just poppy and crackly.

What else???

EDIT: sound is fine in normal DVD player must be software DVD plater problem but the discs dont always run in the normal dvd player. Sames discs work when backing up DVD. When the ULEAD disc doesn't work it will work in my chipped PS2

[MikeGunter]

Ok still no luck. Captured via DV into AVI. Clips plays fine. Created Video File which plays with no sound but if I make a dvd the sound is there but just poppy and crackly.

What else???

EDIT: sound is fine in normal DVD player must be software DVD plater problem but the discs dont always run in the normal dvd player. Sames discs work when backing up DVD. When the ULEAD disc doesn't work it will work in my chipped PS2

It is normal in DVD player, but don't run in DVD player?

It could be the bit rate is too low or high, that the settings are off, or that the audio sample rate is out of spec.

Could you show the properties of the type of file you use and the properties of the file to which you convert?

Mike

[THoff]

If you are using Windows Media Player to test the DVD on your PC and you don't get any sound, you need to install the free AC3 Audio DirectShow Filter.

[MichaelW]

If you are using Windows Media Player to test the DVD on your PC and you don't get any sound, you need to install the free AC3 Audio DirectShow Filter.

Thanks will install....I should clarify.

The discs that sound a little poppy and crackly in PC work fine in the PS2. They dont seem to run in the normal DVD plater despite using the same media discs for backing up DVD's I have bought (these copies work in the normal DVD player.

I tried copying the ULEAD discs that dont work with DVDShrink. The copies work well in the PS2 again but this time they run in the normal DVD player but with no sound.

[heinz-oz]

Let's get away from the idea that the soundcard somehow has anything to do with the audio captured from a DV device -- DV is purely digital, gets manipulated in a digital form on the PC, and is then output to digital media. He doesn't need to replace his onboard AC97 audio.

Well, it did in my case and I tried all sorts of suggestions like yours at first. I'm not saying that his soundcard is the culprit, I'm suggesting to look at it.

[THoff]

Then the problem in your case was something else.

The soundcard isn't involved in this process, either capturing or encoding, and he's playing the DVD with a standalone player, so it can't be a playback issue with the soundcard either.

The problems with VIA chipsets and Creative SoundBlasters you mentioned were resolved as well: the VIA 686 chipset is obsolete, there were BIOS fixes from some motherboard makers to fix the Southbridge flaws, updates to the VIA 4-in-1 / Hyperion drivers for those who had a motherboard from an unresponsive hardware vendor, and the PCI latency issue behind the static noise was never present with the Audigy cards.

[MichaelW]

Then the problem in your case was something else.

The soundcard isn't involved in this process, either capturing or encoding, and he's playing the DVD with a standalone player, so it can't be a playback issue with the soundcard either.

The problems with VIA chipsets and Creative SoundBlasters you mentioned were resolved as well: the VIA 686 chipset is obsolete, there were BIOS fixes from some motherboard makers to fix the Southbridge flaws, updates to the VIA 4-in-1 / Hyperion drivers for those who had a motherboard from an unresponsive hardware vendor, and the PCI latency issue behind the static noise was never present with the Audigy cards.

I will uninstall the PowerDVD program and install WinDVD or something. The problem is there is no sound in the playback on PC using WMP. Some people mention to have the AC3 codec in (and I will install) but the disc was made using MPEG audio.

DVD is currently running PIO mode despite auto detecting. Will manually make a change to the registry (tweak trick found on web) and see if this makes a diff.

[MichaelW]

Fixed!!!!!. Restablished DMA Mode 2 over DVD Drive.

Playback in pc is perfect now.

Thanks

[bobfrank]

The audio setting on the DV camera is set a 12bit - could this be an issue?

I don't see where anyone addressed this question.

Yes that could cause problems. Everything I've read suggests that you should use the 16bit setting on your camera for sound. That's what will be used on the DVD.

[THoff]

Correct. Some applications that work with DV files do not understand 12-bit sound, or don't always handle it correctly. The reason for having 12-bit sound is so that you can do voice-over recording using the camcorder -- the voiceover gets recorded on a separate audio track created through the reduced sampling rate. Since most of us would use UVS' audio mixing capabilities to do voiceovers, there is really no point in using 12-bit audio.

I remember a post from someone with UVS 8 who switched the audio sampling in the middle of a tape, and wound up with audio that briefly played at the wrong rate before UVS just locked up completely.

Regarding MichaelW's problem resolution, congratulation! If you drive was previously in PIO mode, it would have consumed significant CPU resources to feed the drive, and that could have been enough to keep the audio from playing smoothly. Good catch!