Hallo > I tried recompiling my kernel without pre-emption, but it made no difference. > I've left it off for the time being. I tried recompiling the mjpegtools, and > that made no difference. I've had the mjpegtools working fine on this machine > previously using the OSS, as opposed to ALSA which it now uses, so I tried > pulling ALSA out and putting the deprecated OSS drivers back in. I got into > kernel module dependency hell, so I backed out of that route. I presume it > shouldn't make any difference. I remember a kernel option In the 2.4.x Kernel ist was caled persistent DMA Busser, where you could tell the kernel that it keeps some space below 16MB free fro ISA cards. I haven't found that option in the ALSA sound system but in the OSS it still exists maybe you give the oss a 2nd try.
> > So have you tried to record from the SB16 with some other applications > > like arecord ? > I have now, and I can't get a peep out of anything! 'arecord' and xawtv's > 'record' utility run OK, and I can hear the sound via the line-in as it's > recording, but playing back the resultant WAV file results in silence. I > can't get anything from the microphone input either. That used to work. That would really point to a sound card problem for me. BTW: The SB16 should have worked for more 10 years by now ? I still have the bill from 1993 where I bought my SB-16 :) The card is still working in my old computer which has some ISA slots. But I don't record with that computer any more. > > To make soure that the sound card does not make problems please also try > > to record without sound (-a 0) and tell us that if lavrec still behaves > > strange. > You're spot on here: using -a 0 stops the lavrec capture getting upset. The > only drawback is, well, no sound! Fine that at least lavrec works properly. > I did find something interesting though: the first lavrec capture I do after a > reboot works correctly. The sound doesn't come out with the pulsing and the > video doesn't stop recording. I've tried it several times with an > 'rcalsasound restart' in between and each time it works fine. The first time > I tried a second capture without resetting the sound system: crackle, > crackle, crackle... We had that problem some time ago. Please take a look at the mjpeg-users mailinglist. You should find some hints there. > <A bit later...> In fact, the problem seems to be with glav. I reset the sound > system and recorded several clips, one after the other with no resets. I then > play them back using glav and they're all perfect. I record one more and it > comes out with crackles. I reset the sound system and play it again - it > still crackles. What happens if you play them back with mplayer for example ? > I appears that glav exits leaving the sound system in a state where lavrec > records sound incorrectly until the sound hardware is reset. Is that > possible? That can be possible. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: [EMAIL PROTECTED] www: http://www.lysator.liu.se/~gz/bernhard ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=5047&alloc_id=10808&op=click _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
