[mythtv-users] mpeg2 running 33%-50% too fast
bjm at lvcm.com
Thu Jun 21 22:45:16 UTC 2007
Justin Mazzola Paluska wrote:
> On Thu, Jun 21, 2007 at 06:07:14PM -0400, Michael T. Dean wrote:
>> On 06/21/2007 05:48 PM, Justin Mazzola Paluska wrote:
>>> Our setup had been working fine until we started experimenting with the capture
>>> resolution for the cards. Initially, we had it set to 480x368, but
>>> then changed it to 480x352 and 544x480 for unrelated reasons. Setting
>>> the capture resolution back to 480x368 does not solve the problem, nor
>>> does upping the card resolution all the way up to 720x480.
>> Fix the recording profile in Myth.
> In what way? I’ve already used mythfrontend to change the capture
> resolution back for the recording profile. Is there something else
> that I should be fixing it with?
Fix the audio parameters. Running at the wrong speed traditionally
is caused by the record sample rate and playback sample rate
being mis-marked or mis-interpreted.
BTW, you should always use 480 or 240 for the hight as there are
a finite number of scan lines and you should align with them.
The horizontal is sampling an analog wave across the screen and
can be sampled at any rate independent of the hight. So, 352x480
is good, 480x352, not so good =).
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