[mythtv-users] HD-PVR SPDIF audio trashed at beginning of recordings

[JS Boyd]

Hello All,

I was wondering if anyone else with an HD-PVR is getting from 1 second 
to 20 minute burst of static in the audio at the beginning of their 
recordings?

It's almost always only about 1 second, but sometimes much longer. Once 
the static disappears it never reoccurs within that recording. It's 
definitely in the stream being passed to Myth. Playing the files with 
mplayer produces the identical audio that the Myth Internal player 
plays. And given that Myth does not process HD-PVR files while 
recording, I suspect it is the HDPVR or maybe the cable box. Though 
directly connecting to the AV receiver via SPDIF from the cablebox 
produces no static.

The HD-PVR is connected to a Motorola DCH3416 cablebox via SPDIF. The 
analog audio is disconnected. I am using the latest driver from the 
Haupauge website: 1.0.5.301

The static seems to always occur after a channel change, but even then 
it does not always happen. I am using:

mythchanger -f 6 -c

over firewire to change the cablebox channels.

I have also used the DCH3416 for firewire and never had any audio 
issues. (Reliable Firewire recording issues, yes... but no audio issues.)

Other than this audio glitch, the HD-PVR is much more reliable than 
Firewire and produces much smaller recordings at "visually" similar 
resolution.... in other words WAF is higher than it was with Firewire.

Thanks in advance,

-- 
==
Ubuntu Feisty 7.04
MythTV 0.21-fixes 20018M+VDPAU+HDPVR_patches
AMD 64 x2 4200+ 65W Energy Efficient Processor
Abit NF-N2 nView Motherboard
NVidia 9500GT (VDPAU) fanless 1GB PCIe x16 videocard 
PVR-500 (Phillips Chipset)
 IVTV 0.10.4
HDHomerun /sys/version 20071120
Moto DCH3416 Cablebox + HDPVR & Firewire
4GB RAM
2- 500GB Seagate SATA: ST3500641AS Rev 3.AA
1- 1.5TB Seagate SATA: ST31500341AS Rev SD1B
SONY DVD RW AW-G170A