[mythtv-users] Soundblaster Live! PCI 7.1
Dave Bixler
dbixler at wbs-wireless.com
Wed Jan 25 16:33:59 UTC 2006
Believe me, no apologies are necessary. I feel like a complete idiot...
and a frustrated, but perseverant, idiot :). I think I may
misunderstood how things work.
What does the audio capture, the TV card or the Sound Card? I assumed
that the sound card performed the capture, and hence, the need for the
line-out to line-in patch cable.
Another thing, when I run kmix I can view both the SB card and the card
labeled as BT878. On the BT878 page, I can change what I think is the
record input. Which should this be set to, TV or Mic/Line?
Thanks again,
Dave
Raphael Pooser wrote:
> Dave Bixler wrote:
>
>> One thing about the setup that is curious is, in fact, the tuner
>> card. I'm not at the machine now (at work, atm), but I'm 100% sure
>> it's a Conexant chipset. However, when I run:
>>
>> [root at bywater ~]# dmesg | grep bttv && dmesg | grep tuner
>> bttv: driver version 0.9.16 loaded
>> bttv: using 8 buffers with 2080k (520 pages) each for capture
>> bttv: Bt8xx card found (0).
>> bttv0: Bt878 (rev 17) at 0000:00:0a.0, irq: 12, latency: 32, mmio:
>> 0xea004000
>> bttv0: detected: Hauppauge WinTV [card=10], PCI subsystem ID is 0070:13eb
>> bttv0: using: Hauppauge (bt878) [card=10,autodetected]
>> bttv0: gpio: en=00000000, out=00000000 in=00ffffdb [init]
>> bttv0: Hauppauge/Voodoo msp34xx: reset line init [5]
>> bttv0: using tuner=50
>> bttv0: i2c: checking for MSP34xx @ 0x80... not found
>> bttv0: i2c: checking for TDA9875 @ 0xb0... not found
>> bttv0: i2c: checking for TDA7432 @ 0x8a... not found
>> bttv0: i2c: checking for TDA9887 @ 0x86... not found
>> bttv0: registered device video0
>> bttv0: registered device vbi0
>> bttv0: PLL: 28636363 => 35468950 .. ok
>> bttv0: PLL can sleep, using XTAL (28636363).
>> tveeprom 1-0050: tuner model is TCL 2002N 5H (idx 99, type 50)
>> bttv0: using tuner=50
>> tuner 1-0061: chip found @ 0xc2 (bt878 #0 [sw])
>> tuner 1-0061: type set to 50 (TCL 2002N)
>>
>> it is obviously loading the bttv drivers. Would this be the cause of
>> the probleM?
>>
>> Thanks again.
>> Dave
>>
>> P.S. I have not yet tried playing a MPG file.
>>
>> Dave Bixler wrote:
>>
>>> I'm using a Hauppauge WinTV Go with the line out of that card into
>>> the SB Live line in.
>>>
>>> Thanks for the prompt response,
>>> Dave
>>>
>>> PAUL WILLIAMSON wrote:
>>>
>>>> The sound card is not used in the capture of the sound.
>>>> What capture card do you have? Have you tried to
>>>> play a prerecorded mpg file from the command line
>>>> with the same results? The sound card is only for output.
>>>>
>>>> Paul
>>>>
>>>>
>>>>
>>>>>>> dbixler at wbs-wireless.com 01/25/06 10:33 AM >>>
>>>>>>>
>>>>>>>
>>>> I finally decided to ditch my Diamond Monster Sound card as I could not
>>>>
>>>> resolve the issues with the audio. I dropped in a Sound Blaster Live
>>>> PCI 7.1 card as a test. I tried LiveTV and everything sounded great.
>>>>
>>>> When I watched TV, the sound would start right up and when I exited
>>>> LiveTV, the sound would cease. However, when I attempted to record a
>>>> show, there was absolutely no sound :(. Has anyone else experienced
>>>> this problem? I did notice on the ALSA page that supposedly, capture
>>>> of
>>>> sound is not supported, but I'm not even sure that MythTV is using
>>>> ALSA. Does anyone have any suggestions or comments about this sound
>>>> card?
>>>>
>>>> Thanks,
>>>> Dave
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>>>>
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>>
> well, if you are absolutely sure that you have a connexant, then yeah
> you should be loading the cx88 module... but if you literally get a good
> picture AND sound out when you are watching live TV, I highly doubt you
> are using the wrong module there. I would be more wary of checking you
> recording profiles. Sorry these are dumb suggestions - but if you
> didn't check maybe it's there. Perhaps for live TV you have the
> recording volume at an acceptable level and for the default recording
> profile you have the recording volume turned down way too low? Another
> thing is to try alsamixer and check where capture is set. Something
> like alsamixer -v all
> and look and see that capture is set for line in (press space bar on
> line in). My apologies if you've done such things already. I know when
> I first started up my system, I was happy to hear sound in Live TV but
> in fact I was not capturing it, I was listening to line in directly. I
> had other problems like figuring out which volume level controlled the
> capture volume, playback volume, etc. on my card. It is odd that you
> hear sound in live tv, if it is in fact the captured sound, but not in a
> recording, hence I thought about the recording level in the profiles.
> Try muting line in and see if you still have sound in live tv. again,
> apologies if these things are overly simple and you're there already.
> Raphael
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