[mythtv-users] Weird distortion on recordings
Yan Seiner
yan at seiner.com
Tue Apr 3 13:50:27 UTC 2007
Yan Seiner napsal(a):
> I'm trying to track down some weird distortion on recordings. I've
> posted a couple of examples and I hope someone can shed some light on this:
>
> http://www.seiner.com/analog.jpg
> http://www.seiner.com/digital.jpg
>
> This has been happening on my new backend - a 1.67 Ghz Core2 Duo. I
> transplanted the tuners from my old PIII 1GHz box to this one, and this
> started happening. Recordings on the old server were perfect; here they
> distort like this.
>
> I am really out of ideas; the new backend has 4 SATA drives in a RAID5,
> and is mostly idle. It should handle one or two streams with no problems.
>
> The old backend had 4 IDE drives and 4 SCSI drives. All recording was
> stored on the IDE drives.
>
> There are no errors in the myth log files...
>
> I am running 0.20-fixes, self-compiled, on Debian Etch AMD64.
>
OK, a possible reason:
I've been watching the signal strength.... It's bouncing between 12 and
99%... Really weird.
Any idea where to look? The obvious cause might be a failing amp....
I'll check that later. But could it also be freq tables or something in
the setup?
--Yan
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