AVI sound delay!

[fourbears]

Hi,

I have some problems with the sound playback on certain AVI files. I have used AVICodec to figure out that they are, for example:

File: 12.87 MB (12.87 MB), Length: 0:00:36, type: AVI, 1 lydspor, quality: 94 %, CASIO EX-S770
Video : 12.11 MB, 2822 Kbps, 29.969 fps, 640*480 (4:3), M4S2 = MS ISO MPEG4 V2
Sound: 777 KB, 177 Kbps, 44100 Hz, 1 kanaler, 0x11 = IMA ADPCM, CBR

The problem is that the sound is about 1-2 seconds delayed when I play them on my desktop computer but they play fine on my laptop and a third PC! I can play other types of AVI files fine along with other video formats.

Can anyone tell me what could be the problem?

[fourbears]

Is there really no one who can help me out here?

[guns1inger]

The problem could be any of the following

the player
the version of the codecs
a codec pack having been applied at some point

What happens if you encode it using a different codec on your laptop, then play it on the offending PC ?

[fourbears]

Thanks for the reply!

I have tried different players - same result.

As suggested, I tried encoding one of the AVI files as wmv on my laptop and it played fine on both computers - I then tried encoding it on the offending PC and what do ya know?!: Same result - it plays fine! Weird! I'd think that a codec problem would also cause problems when encoding to a different format... Or is that just me not knowing a thing about codecs?

I have tried installing a codec pack but only AFTER the problem occured. This resulted in player crash every time I tried to open this type of AVI file, so I uninstalled it again.

Is there a way to kill all codecs and start from scratch? Or is it unlikely to be a codec problem when I can encode the clip to wmv with no audio issues?

[fourbears]

Solved it!

I managed to isolate the problem to the quartz.dll file. I used MMCompView to disable and enable different codecs. It turned out I had two Direct Show video renderer codecs. I diabled one of them - and hey! It worked!

[guns1inger]

One of the (many) problems with codec packs in particular, but even the use of many codecs on a single machine, is that inevitably some of them will clash, and it will be time consuming to track down the source. Your diligence has paid off, and I am glad you found the cause.