> Date: Thu, 4 Mar 2010 17:18:33 -0500
> From: [email protected]
> To: [email protected]
> Subject: Re: [ivtv-users] hvr-1600, frame CRC mismatch - incomplete frame
>
> On Thu, Mar 4, 2010 at 5:06 PM, Kyle Lil <[email protected]> wrote:
> > The Windows utility gives a signal strength in the neighborhood of 32.5,
> > which correlates well with what azap reports. It also has indicators for
> > both corrected errors and uncorrectable errors. I can't find a log file that
> > it stores this data to, but sitting and staring at the indicators I see
> > occasional corrected errors, but I see no uncorrectable errors. The error
> > correction referred to here is done in hardware, correct?
>
> Yes, those counters are for hardware based correction.
>
> Also, bear in mind that the azap results will not match exactly the
> same as the Windows driver, due to some minor differences in the way
> the calculation is performed (the quality is the same, the differences
> are in the reporting).
>
> Cheers,
>
> Devin
>
> --
> Devin J. Heitmueller - Kernel Labs
> http://www.kernellabs.com
>
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Thanks, Devin. Using the conversion factor you previously gave me for azap
output to decibels, it looks like the Windows utility is reporting the same
SNR. I'm trying to figure out if the glitches I'm seeing while watching video
in Linux (but not in Windows) are caused by differences in the HVR-1600 driver
or if the Windows codecs are particularly good at dealing with errors. Based on
what the Windows utility is reporting, it seems that there are actually fewer
uncorrectable errors at the tuner, which (I think) points to a difference in
the drivers...
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