ASF file conversion woes

[andy99]

Hi,
I capture streams into ASF files and they play fine using windows media player.
But when I try to convert them using SUPER, NERO, windows video maker or windows encoder, I get video /audio sync problems. Even when I try to upload the ASF file to youtube, the video get converted but there is an audio sync issue.
Sometimes when I use windows encoder and select CBR audio, I don't get the audio sync issue but the audio is not great and with some distortion.
What do I need to do to convert the ASF files to another format without the audio /video sync issue?
I tried many free and non-free converters (NERO) without sucess.
Let me know what I need to do.
Thanks

[Baldrick]

Try run through the asf files using asfbin or steeper. And try convert using avidemux.

[Midzuki]

You should also take a look at:

https://forum.videohelp.com/topic346029.html#1814650

HTH.

[andy99]

Hi Baldrick,
I use asfbin to cut the asf file into segments. Is there anything I should do to fix the sync there? Again, the segments when played using windows media player, have no sync issues what so ever.
As for avidemux, I tried to use it (followed the great guide you posted) but the files that get saved either has sound issues or video issues.

Midzuki, thanks for the link. But will this work for videos or only audio?

Is there something that I should look for? The thing that is driving me crazy is that the sync issue is not consistent.

here is the media info, if it helps

General
Complete name : C:\yuzufsn2.asf
Format : Windows Media
File size : 30.4 MiB
Duration : 5mn 3s
Overall bit rate : 840 Kbps
Maximum Overall bit rate : 851 Kbps
Movie name :
Performer :

Video
Format : VC-1
Codec ID : WMV3
Codec ID/Info : Windows Media Video 9
Codec ID/Hint : WMV3
Width : 640 pixels
Height : 480 pixels
Display aspect ratio : 4/3
Resolution : 24 bits

Audio
Format : WMA2
Codec ID : 161
Codec ID/Info : Windows Media Audio 2
Duration : 5mn 3s
Bit rate : 32.0 Kbps
Channel(s) : 2 channels
Sampling rate : 32.0 KHz

[Midzuki]

The Winamp workaround will work only onto the audio stream ---
--- that's the reason why you should deal with an audio-only ASF file (read: .wma).

The sync problems you're having are caused by the Variable-SampleRate
behavior of the Windows Media Audio format. I use the Disk Writer plugin for
getting a normal stereo .WAV, which is then reencoded as mp2, ac3, etc.,
and finally muxed with the re-encoded video stream. So far, the trick has
always worked fine over here.

\\\\\

[andy99]

Thanks Miduzki. I tried to extract the audio only and convert it into another formate. Now the problem is that the audio has a lot of pops and noise. I can't seem to normalize the sound and get rid of the pops and scratch noise. Is there a simple software to do this?