[mythtv-users] Output from the Hauppauge HD-PVR?

Brad DerManouelian myth at dermanouelian.com
Wed Aug 27 15:44:42 UTC 2008


On Aug 27, 2008, at 7:14 AM, Robert McNamara wrote:

>> this puzzles me a little, the 6mbits==low quality part.
>> Granted my tv/setup is 720 not 1080 (which would change things)
>> but looking at the source (directv) and looking at my 6mbit
>> recordings I cant see any real difference.
>> so Im wondering have people who have the hdpvr at 720 resolution
>> noticed any problems at 6mbits?
>
> All a matter of opinion/personal taste and a number of other factors,
> I suppose, such as quality of input source, output resolution, etc.
> For my money, capturing 1080i at 6 mbit/s is verging on unwatchable.
> 13.5 Mbit/s, however, is really really fantastic and only shows a
> slight bit of "softening" compared to the initial source.  I say if
> people want to capture at 6 Mbit with mid-spec systems and are happy
> doing so, as long as they have the understanding that they will
> probably have major headaches if they try to scale up to the max, then
> go for it.  It's somewhat important to note that the OP was nearly
> maxing out a core *before* audio decode and sync on a 6 Mbit/s
> capture.  Assuming processor usage was linear as bitrate increased
> (which, of course, it isn't, but close enough) and adding audio
> decode/sync into the mess, it's more a support of my assertion that a
> higher power CPU is needed than a refutation of it.

I'm starting to wonder if my problem playing back is my ALSA  
configuration. I'm using IEC958. I also wonder if I would have an  
easier time playing back once we can get AC3 audio capture.


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