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Hello. I have a new Mythtv setup for recording
video. Everything is working, but I am having problems with the audio
playback. Specifically, on playback the audio sounds “graveley,”
i.e. there are very frequent, rapid, short drop-outs. This happens not
only when I play back via Mythtv, but also when I play the mpeg via the Totem
movie player in Gnome. To rule out the possibility that the capture device (HDPVR)
is defective, I copied the mpeg file onto a windoze machine and played it, and
the audio sounds fine. To rule out some problem with the audio hardware,
I played a CD on the linux box, which also sounds fine. Mythtv is configured to use ALSA:front for output. I
don’t know what Totem uses. The hardware is the onboard audio on a
Gigabyte GA-EP45-UD3R mobo. It’s got an Intel chipset (ICH10) and
the manual says it uses a Realtek ALC889A codec. The system is a new FC12
build. I ran the ALSA Audio Debug and the output is below. Any advice on how to fix this problem would be greatly
appreciated. TIA…Steve ALSA Audio Debug v0.1.0 - Fri Jan 22 15:09:31 MST 2010 http://alsa.opensrc.org/aadebug http://www.gnu.org/licenses/gpl.txt Kernel ---------------------------------------------------- Linux mythtv 2.6.31.12-174.2.3.fc12.x86_64 #1 SMP Mon Jan 18
19:52:07 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux Loaded Modules -------------------------------------------- snd_hda_codec_realtek 281380 1 snd_hda_intel
30360 2 snd_hda_codec
72832 2 snd_hda_codec_realtek,snd_hda_intel snd_hwdep
9224 1 snd_hda_codec snd_seq
58080 0 snd_seq_device
7620 1 snd_seq snd_pcm
83144 2 snd_hda_intel,snd_hda_codec snd_timer
22608 2 snd_seq,snd_pcm snd
67592 12
snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer snd_page_alloc
9568 2 snd_hda_intel,snd_pcm Modprobe Conf --------------------------------------------- Warning: module config file does not exist This means any kernel modules will not be auto loaded See your linux distro docs on how to create this file Proc Asound ----------------------------------------------- Advanced Linux Sound Architecture Driver Version 1.0.20. 0
[Intel ]: HDA-Intel - HDA
Intel
HDA Intel at 0xea400000 irq 22 2: : timer 3: :
sequencer 4: [ 0- 2]: digital audio capture 5: [ 0- 1]: digital audio playback 6: [ 0- 1]: digital audio capture 7: [ 0- 0]: digital audio playback 8: [ 0- 0]: digital audio capture 9: [ 0- 2]: hardware dependent 10: [ 0] : control 00-02: HDA Codec 2 00-00: ALC889A Analog : ALC889A Analog : playback 1 :
capture 1 00-01: ALC889A Digital : ALC889A Digital : playback 1 :
capture 1 00-02: ALC889A Analog : ALC889A Analog : capture 1 Client info cur clients : 1 peak clients : 1 max clients : 192 Client 0 : "System" [Kernel] Port 0 : "Timer" (Rwe-) Port 1 : "Announce" (R-e-) Client 14 : "Midi Through" [Kernel] Port 0 : "Midi Through Port-0"
(RWe-) Dev Snd --------------------------------------------------- by-path hwC0D2 pcmC0D0p
pcmC0D1p seq controlC0 pcmC0D0c pcmC0D1c pcmC0D2c
timer CPU ------------------------------------------------------- model name : Intel(R)
Core(TM)2 Duo CPU E8400 @ 3.00GHz cpu MHz :
2000.000 model name : Intel(R)
Core(TM)2 Duo CPU E8400 @ 3.00GHz cpu MHz :
2000.000 RAM ------------------------------------------------------- MemTotal: 4057844
kB SwapTotal: 8191992 kB Hardware -------------------------------------------------- 00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM
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