[mythtv-users] Realtime Fine Tuning -- just a pipe dream?
Michael T. Dean
mtdean at thirdcontact.com
Fri Aug 31 21:22:42 UTC 2007
On 08/31/2007 04:03 PM, Jay R. Ashworth wrote:
> On Fri, Aug 31, 2007 at 03:39:07PM -0400, Michael T. Dean wrote:
>> On 08/31/2007 03:08 PM, Jay R. Ashworth wrote:
>>> Has the ability to adjust channel fine-tuning from LiveTV (permanently
>>> for a channel, obviously) ever been anything more than a Feature
>>> Wishlist entry? I've almost never needed it, but on my sis's recently
>>> reworked box, 3 channels are semi-ugly, and I was trying to see why.
>> What three channels/frequency ID's (and what TV source--i.e. cable)?
>> There may be an even easier fix. That sounds a /lot/ like a frequency
>> table issue.
> 4, 11, and 72. :-)
OK, not likely a freq table issue. :(
>> In theory, fine-tuning should never be required for any channel. The
>> tuner's hardware fine-tune mechanism should be more than enough for
>> variations from the spec--the resolution of the kernel's tuner module is
>> (currently) only 62.5kHz. (And the values you specify for finetune are
>> in kHz, so unless the value you've chosen is high, you may not even be
>> affecting the value passed to the tuner module--though it all depends on
>> the specific frequency and rounding issues. This doesn't mean you
>> wouldn't see a difference as there are temporal variations and the state
>> of the tuner before retuning can impact the end result.)
> Sure. But it's a lot easier to tell if you don't have to
> change->save->retune->retune again...
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