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From: Steven Toth <stoth@kernellabs.com>
To: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: David Ward <david.ward@gatech.edu>, linux-media@vger.kernel.org
Subject: Re: cx18, s5h1409: chronic bit errors, only under Linux
Date: Tue, 09 Jun 2009 10:21:17 -0400	[thread overview]
Message-ID: <4A2E6FDD.5000602@kernellabs.com> (raw)
In-Reply-To: <829197380906081336n48d6090bmc4f92692a5496cd6@mail.gmail.com>

> Steven,
> 
> One thing that is interesting is that he is getting BER/UNC errors
> even on ATSC, when he has a 30.2 dB signal.  While I agree that the
> cable company could be sending a weak signal, 30 dB should be plenty
> for ATSC.
> 
> Also, it's possible that the playback application/codec in question
> poorly handles recovery from MPEG errors such as discontinuity, which
> results in the experience appearing to be worse under Linux.
> 
> I'm going to see if I can find some cycles to do some testing here
> with s5h1409/s5h1411 and see if I can reproduce what David is seeing.

Thanks.

I ruled out 30db on ATSC because that sounds incredibly high, I assumed cable 
because that would be consistent with the numbers. You could well be right.

-- 
Steven Toth - Kernel Labs
http://www.kernellabs.com

  parent reply	other threads:[~2009-06-09 14:21 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-08 10:31 cx18, s5h1409: chronic bit errors, only under Linux David Ward
2009-06-08 14:14 ` Steven Toth
2009-06-08 14:17   ` Devin Heitmueller
2009-06-08 16:20     ` David Ward
2009-06-08 16:31       ` Steven Toth
2009-06-08 17:16         ` David Ward
2009-06-08 20:20           ` Steven Toth
2009-06-08 20:36             ` Devin Heitmueller
2009-06-08 21:03               ` David Ward
2009-06-08 21:09                 ` Devin Heitmueller
2009-06-09 14:23                 ` Steven Toth
2009-06-09 14:21               ` Steven Toth [this message]
2009-06-09 14:23                 ` Devin Heitmueller
2009-06-09 14:24                   ` Steven Toth
2009-06-09 18:52                     ` David Ward
2009-06-09 18:55                       ` Devin Heitmueller
2009-06-09 19:04                         ` Steven Toth
2009-06-09 19:07                           ` Devin Heitmueller
2009-06-09 19:26                             ` Steven Toth
2009-06-10  8:11                               ` David Ward
2009-06-10 14:32                                 ` Steven Toth
2009-06-11 21:27                                   ` David Ward
2009-06-09 19:05                         ` Steven Toth
2009-06-09  2:44             ` Andy Walls

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