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.dv video (captured from Kino) outputs static right channel
Posted: 02 Mar 2010 06:51
by ngoonee
Hi all,
As the topic says, I capture a raw DV video from my camcorder using Kino. Playing back in Totem/Mplayer seems to work fine, but in VLC the right audio channel is full of static which seems somehow related to the sound (louder at the louder bits, softer when no sound at all, so doesn't sound like random static). The left audio channel sounds fine, no noise at all.
http://pastebin.com/T2PQHSde is the output of `vlc -vvv capture002.dv > vlcoutput 2>&1`. Can't figure out what would be causing this sort of behaviour. Help appreciated, thanks in advance =).
Re: .dv video (captured from Kino) outputs static right chan
Posted: 09 Jul 2010 18:05
by arenasa
The problem seems to be with the audio format. This is happening to me with 12 bits audio 32Khz audio from the clip. VLC always try to make it 16... on the player you can choose to duplicate the left channel (Autio/Channel/Left) and the noise is gone. But I still can not find a way to do the same for transcoding. I could not find either a way to tell VLC the audio is 12 bits instead of 16.
Re: .dv video (captured from Kino) outputs static right chan
Posted: 16 Jul 2010 14:53
by Jean-Baptiste Kempf
Please, give us a sample to test.
Re: .dv video (captured from Kino) outputs static right chan
Posted: 19 Feb 2011 07:05
by lhm100
Great (kind of...) I'm not the only person with this issue.
However, I did figure something out, that I think is strange.
If I copy the .dv file to another file with a .avi extension, it plays just fine.
(yes, really just copy the file and change the extension)
I'm running FC13, and the linux "file" command report both files are "DIF (DV) movie file (NTSC)"
However, the Codec info reported by VLC differs for the two files when played back:
The .dv file that does NOT work reports:
Stream 1
Type: Audio
Codec: PCM S16 LE (s16l)
Channels: Stereo
Sample rate" 32000 Hz
Bits per Sample: 16
The .avi file that DOES work correctly reports 2 sets of audio streams:
Stream 1
Type: Audio
Codec: PCM S16 LE (s16l)
Channels: Stereo
Sample rate" 32000 Hz
Bits per Sample: 16
Stream 2
Type: Audio
Codec: PCM S16 LE (s16l)
Channels: 2
Sample rate" 32000 Hz
Bits per Sample: 16
Bitrate: 1024 kb/s
Maybe this info will help.
FYI. This same problem has been reported on the windows forum. I found it there first and posted this similar info there.
Topic: "Crackling audio on AVI playback. Codec problem?"
Re: .dv video (captured from Kino) outputs static right chan
Posted: 20 Feb 2011 19:16
by Jean-Baptiste Kempf
Please, share the file.