wmv with no sound

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wrGuest

wmv with no sound

Postby wrGuest » 12 Jun 2006 21:46

Not sure if this is a bug. Never had any sound issues with VLC. Today i have tried to watch video samples at http://www.sysinternals.com/videos.html and i get no sound. Media Player Classic (without any codecs installed, and this is only wmv9+wma9) is playing sound ok. I have other wmv9+wma9 files which plays ok with VLC.

wroot
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Re: wmv with no sound

Postby wroot » 01 Apr 2008 21:31

UPD: with current version i can watch those videos with sound, but still cant move to some place of the video. It shows, but sound dissapears. Cant find whether those videos are still available.

P.S. i have also changed the OS to WinXP SP2 (was Win2000 SP4)

VLC_help
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Re: wmv with no sound

Postby VLC_help » 02 Apr 2008 17:00

You could google those filenames and hopefully you can find some alternative download links.

revolunet
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Re: wmv with no sound

Postby revolunet » 02 Apr 2008 17:41

one the newest wmv audio codec, wmav i think is not yet supported by VLC ;(
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Arite
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Re: wmv with no sound

Postby Arite » 02 Apr 2008 17:46

What WMA codec is it? Press "Ctrl+I" and click on "Advanced information".

You could also try using:

Code: Select all

--codec dmo
To start VLC with it open e.g. "Start >> Run..." and enter "cmd".

In the commandline enter, assuming VLC is installed in the default location:

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C:\Program Files\VideoLAN\VLC\vlc.exe --codec dmo FILE
Where FILE is the location of the *.wmv file (e.g. "C:\Temp\Test.wmv").

Cheers, Arite.
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revolunet
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Re: wmv with no sound

Postby revolunet » 02 Apr 2008 17:49

even with --codec dmo the newest wmav codec isnt supported ;(
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wroot
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Re: wmv with no sound

Postby wroot » 02 Apr 2008 18:56

Stream 0
Codec: wmas
Language:
Type: Audio
Channels: 1
Sample rate: 22050 Hz
Bits per sample: 16
Bitrate: 20 kb/s
Codec name: Windows Media Audio 9 Voice
Codec description: 20 kbps, 22 kHz, mono

Stream 1
CodecL WMV3
Language:
Type: Video
Resolution: 640x480
Codec Name: Windows Media Video 9

i have put one of them at my site: http://www.wroot.lt/misc/sample.wmv

Arite
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Re: wmv with no sound

Postby Arite » 02 Apr 2008 19:19

Well the audio does playback fine in both 0.8.6e and 0.9.0-git (20080402-003), however as you said seeking loses the audio. The message output is as follows after seeking:

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dmo debug: ProcessInput(): not accepting dmo debug: ProcessOutput(): failed
It then loops continuously.

The only suggestion I have is quickly transcoding to another format. For example with your sample the sout string (generated using mostly default settings in the "Steam output" window):

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:sout=#transcode{vcodec=mp4v,vb=1024,scale=1,acodec=mpga,ab=192,channels=2}:duplicate{dst=std{access=file,mux=mp4,dst="C:\Temp\OUT.mp4"}}
Worked fine and the audio was retained when seeking.

Cheers, Arite.
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