Audio breaking up on generated MPEG video

[nealenapier]

I am having problems with the audio breaking up on louder (nothing exceptionally loud) passages on generating my MPEG file from a DV clip. The imported DV AVI clip however plays fine without breaking up, so nothing wrong with the source!

To test this I have captured a little DV footage with louder passages from the camcorder, made no edits and simply created my MPEG video file. I have not used any audio filters. I played back the MPEG in both VS10 and Windows Media.

The Original AVI footage was imported with Audio as DV Audio - Pal, 33kHz, 12bit stereo.

For generating the MPEG video I tried the following 2 audio settings with the same problem¡K 448bps Dolby digital audio and also 394bps MPEG 48000 Hz, 16bit stereo.

Any help with the above would be much appreciated. Also any relevant audio format links would be gratefully received. I am a bit clueless as to what I should be using for best quality DVD audio and to avoid quality issues such as this.

Thanks,
Neale

p.s. I did have a look on the forum and couldn't see anything obvious. Sorry if I missed it! It didn¡¦t help that when searching it only seems to search for individual words instead of a string, so a search for ¡§audio format¡¨ would return any articles with the words audio and format in them.

[Black Lab]

I have had problems in the past when I rendered to Dolby. Rendering the same to LPCM solved my problem.

A workaround may be to split the audio, render the audio to a wav file, then re-insert the newly created audio file to your project.

[GeorgeW]

The Original AVI footage was imported with Audio as DV Audio - Pal, 33kHz, 12bit stereo.

If you are not dubbing in a second stereo track, then change your camcorder settings from 12-bit 32khz to 16-bit 48000khz (note: I am assuming your 33khz was actually 32khz).

Regards,
George

[nealenapier]

Black Lab - Thanks for you tip. Sadly LCPM made no difference either. I may have a go at your suggested workaround just to see, but I still feel I must be doing something wrong here, since sound corruption at a basic level like this when generating an MPEG can't be a genuine issue with VS10 can it?

George - Thanks for your tip on using 16bit audio on the camcorder. Another member "Ken Berry" also pointed out the error of my ways in a previous posting. Too late for my existing footage sadly! and yes I did misquote my Hz.

[Black Lab]

See this related post that deals with sound card problems: http://phpbb.ulead.com.tw/EN/viewtopic. ... ht=realtek

[nealenapier]

Thanks for the info, Solved!

The sound was only breaking up when the MPEG was played on the PC. When I created and played the DVD the sound was fine, both on the PC and DVD player. But... then the picture started breaking up ! I remembered another tip I saw (from Ken Berry I think) about burning at slower speeds. I did this and now I have perfect audio and video.

[Black Lab]