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| Static in audio, some channels ok http://forum.linhes.org/viewtopic.php?f=17&t=13052 |
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| Author: | Caysho [ Thu Dec 21, 2006 6:00 am ] |
| Post subject: | Static in audio, some channels ok |
I have two a777 cards, and on both cards, I am getting static on several channels, but not all. Both cards are doing the same thing on the same channels. I originally started with one card, and did a heap of recording during the first week with no problems, but I don't recall if that's because I just happened to be recording on the channels that are ok. Things tried: Switching the cards around Running only one card (ie isolating them) Moving them down a slot Switching the feed for each card. Retuning. Motherboard is ASUS A8V Deluxe, FX5700 video card. DVD ROM, DVD RW, two hard drives, all IDE Location is Perth, WA. I have a STB which works fine. I did some searching earlier today, and some people report a similar problem with EMI and load issues (PSU etc), and SATA which I'm not using. One post I read suggested disabling some USB items in the BIOS, which fixed his problem; I have yet to try it. [edit] don't do this, it breaks. I have since found that I had some bad transports which must have been picked up from a channels.conf import. The channels file was created with dvbscan against the Perth frequency list, so I don't know why they'd be bad. [edit 2] Found out that it wasn't the transports that were in error. I selected "Enable AC3 to SPDIF Passthrough" and this is causing the problem. The following channels are affected: Chanel 10 (showing Grand Prix Masters) 9 (showing Free Willy 2) ABC (showing Tennis - Hopman Cup XIX: Day 2) Channels 7, SBS and ABC2 are fine, though I still ony get analogue. Mixer is /dev/mixer (shoud this be changed ?) Mixer controls are PCM or Master, doesn't seem to matter which. I have a decoder capable of both Dolby and DTS, and I'm using an A8V mobo, on board sound (Via chipset). [edit 3] SPDIF wasn't turned on for the passthrough to work. http://www.linuxquestions.org/linux/blo ... pMyth_R5F1 |
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