noising capture

[backslash]

HI,
I'm trying to acquire from a home vhs (recorded from tv) to put into a dvd, but even if tvtime and xawtv show me without any noise, once recorded into a file with mencoder, a player (vlc kmplayer)shows some noising lines, as if the vhs was damaged, but it wasn't!!!
I attached some images to let you better understand.
My mencoder command is:

mencoder tv:// \
   -tv driver=v4l2:device=/dev/video0:input=1:norm=pal:adevice=/dev/dsp2:amode=1 \
   -ovc raw -oac pcm \
   -o tv_nox.avi

the capturecard is a MSI TV@ANYWHERE PCI, lspci output:

00:0c.0 Multimedia controller [0480]: Philips Semiconductors SAA7131/SAA7133/SAA7135 Video Broadcast Decoder [1131:7133] (rev d1) 
        Subsystem: Micro-Star International Co., Ltd. TV@nywhere Plus [1462:6231]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 64 (4000ns min, 10000ns max)
        Interrupt: pin A routed to IRQ 17
        Region 0: Memory at fda00000 (32-bit, non-prefetchable) [size=2K]
        Capabilities: [40] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=3 PME-
        Kernel driver in use: saa7134

My os is debian squeeze with kde4, 2.6.32-trunk-686

thanks

[backslash]

really nobody can help me?

[redwudz]

Don't panic just yet. We have some dedicated Linux members here, but they may take a day or two to respond. That type of noise looks suspiciously like noise from the VHS tape itself, not something that software has added. Your original player software may have ignored the noise frames. But just guessing.

When you encode/transcode a video file, it has to be 100% perfect. Players can ignore some errors.

But standby.

[mankeletor]

Maybe with -ovc copy -oac copy?

[backslash]

you're right mankeletor, but the noise yet remains

[lordsmurf]

That's not tape noise -- those are artifacts by the capture card/device.
I've seen this when using the wrong BT8x8 drivers on BT cards.

[jagabo]

I think Smurf is right. A different capture device should work better.