[mythtv-users] cannot capture audio

[RKVJ]

Hi Mythtv-users,

I'm trying to get mythtv up on an AMD64 machine that
runs Fedora 4(32-bit OS, since I couldn't get mythtv
to work on x86_64 version) and haven't had any luck in
getting the buffered sound to work(record or
playback). I'm using a 'Hauppauge WintvGo(uses bt878
chipset)' for video capture and 'Creative sound
blaster live value' for sound card. I use a patch
cable to feed the output of the capture card to the
sound card via its line-in.

There are several posts related to the issue but I
couldn't find any resolution to the problem. The
issues that I see are very similar to the one posted
in the folloing thread
-
<http://www.gossamer-threads.com/lists/mythtv/users/144027?search_string=audio%20blaster%20live;#144027>



Some information on my installation/hardware:

I used Jarod Wilson's installation steps for guidance.
mostly; referred to the mythtv website for
troubleshooting tips.

I tried the sound-test from the mythtv installation
notes - fired-up xawtv, with the line-in on the
sound-card muted and tried 'aplay /dev/dsp'; I do see
the underrun messages such as :

---------------------------------------
underrun!!! (at least 10.483 ms long)
underrun!!! (at least 11.528 ms long)
underrun!!! (at least 11.565 ms long)
underrun!!! (at least 11.567 ms long)
underrun!!! (at least 11.563 ms long)
underrun!!! (at least 11.569 ms long)
underrun!!! (at least 11.565 ms long)

---------------------------------------

but do not hear any sound :(


I can record tv, but only without the sound, which is
probably because the audio-capture is not happening
through /dev/dsp. 

If any of you mythtv-users have a similar
configuration as mine and have solved the issue,
please post it on the list.


Here's the relevant excerpt from lspci:

-----------------------------------------------------
02:00.0 Multimedia video controller: Brooktree
Corporation Bt878 Video Capture (rev 11)
        Subsystem: Hauppauge computer works Inc. WinTV
Series
        Control: I/O- Mem+ BusMaster+ SpecCycle-
MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr-
DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (4000ns min, 10000ns max)
        Interrupt: pin A routed to IRQ 15
        Region 0: Memory at dfe10000 (32-bit,
prefetchable) [size=4K]
        Capabilities: [44] Vital Product Data
        Capabilities: [4c] Power Management version 2
                Flags: PMEClk- DSI+ D1- D2-
AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0
PME-

02:00.1 Multimedia controller: Brooktree Corporation
Bt878 Audio Capture (rev 11)
        Subsystem: Hauppauge computer works Inc. WinTV
Series
        Control: I/O- Mem+ BusMaster+ SpecCycle-
MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr-
DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (1000ns min, 63750ns max)
        Interrupt: pin A routed to IRQ 15
        Region 0: Memory at dfe11000 (32-bit,
prefetchable) [size=4K]
        Capabilities: [44] Vital Product Data
        Capabilities: [4c] Power Management version 2
                Flags: PMEClk- DSI+ D1- D2-
AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0
PME-

02:01.0 Multimedia audio controller: Creative Labs SB
Live! EMU10k1 (rev 05)
        Subsystem: Creative Labs CT4780 SBLive! Value
        Control: I/O+ Mem- BusMaster+ SpecCycle-
MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr-
DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (500ns min, 5000ns max)
        Interrupt: pin A routed to IRQ 9
        Region 0: I/O ports at e800 [size=32]
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI- D1- D2-
AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0
PME-

02:01.1 Input device controller: Creative Labs SB
Live! MIDI/Game Port (rev 05)
        Subsystem: Creative Labs Gameport Joystick
        Control: I/O+ Mem- BusMaster+ SpecCycle-
MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr-
DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64
        Region 0: I/O ports at ec00 [size=8]
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI- D1- D2-
AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0
PME-
-----------------------------------------------------




Thanks

--RKVJ




	
		
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