[mythtv-commits] Ticket #2813: 32khz AC3 tracks are bad for my receiver
MythTV
mythtv at cvs.mythtv.org
Sun Dec 17 21:07:06 UTC 2006
#2813: 32khz AC3 tracks are bad for my receiver
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Reporter: ylee at pobox.com | Owner: ijr
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: mythtv | Version: 0.20
Severity: medium |
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I have the same issue that Rob Baumstark and others report at http://www
.gossamer-threads.com/lists/mythtv/users/207600#207600 when playing back
certain Firewire recordings (ones with 32khz AC3 tracks) from certain
basic-cable channels with my Turtle Beach Riviera's S/PDIF output to a
receiver. As Rob notes, both audio and video are "chipmunk"-like sped up,
along with occasional loud pops that sometimes cause my receiver to shut
down (presumably to protect the speakers from physical damage).
As Rob writes:
I'm pretty sure at this point that what I need is MythTV to check the
sample-rate of AC3 streams before it attempts to pass them through, and
automatically disable AC3 passthrough for streams that are not 48khz. I
have yet to see an AC3 stream thats not at 48khz and that also contains
more than 2 channels, so there would be no loss of surround-sound with
such an option.
In the meanwhile, a workaround is to alter the playback speed to something
other than 100%; this forces MythTV to remix the AC3 track to 48khz.
--
Ticket URL: <http://svn.mythtv.org/trac/ticket/2813>
MythTV <http://www.mythtv.org/>
MythTV
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