Messages in this thread | | | Date | Sat, 2 Oct 1999 20:15:14 +0100 (GMT) | From | "Alex Butcher(linkern)" <> | Subject | Volume boost on CD channel by starting to play CD??? |
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Hi all -
I've picked up a Pace TV card that connects to one of the internal CD audio inputs of my Creative Labs SB16. I have a Creative 24x CD2422E ATAPI CD-Rom attached to another CD audio input. I realise that the two inputs are both on the same channel of the sound card.
If I start up a video4linux client the audio is initially quiet, but if I start up a CD player app and start playing an audio CD then stop again, the volume of that channel increases to a much more sensible level.
If I rmmod bttv.o, and reload, the volume level is quiet until the same procedure is repeated.
Any ideas on why this should be the case? Would it be possible to create a small utility to do what the CD player does without an audio CD being loaded in the drive (or better, have bttv initialise the sound card in the same way)? I presume the magic is something amongst:
ioctl(4, CDROMPLAYMSF, 0xbffff71c) = 0 ioctl(4, CDROMSUBCHNL, 0xbffff6ec) = 0 ioctl(4, CDROMSUBCHNL, 0xbffff878) = 0 ioctl(4, CDROMSTOP, 0xbffff760) = 0
(If anyone needs further info on my hardware, just ask... :)
Other than that, it's all working well - thanks for all your work!
Best Regards, Alex.
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