I beg your pardon for answering slightly off topic. I have both on-board sound and an old SoundBlaster card. Recording with both works technically without any problem out of the box. BUT: The capture noise level for the on-board chip is around -35 dB, while that from the SoundBlaster is below -65 dB. Therefore, it is unpossible to obtain satisfactory results with th on-board sound. So I would recommend to use a separate sound card, this way also avoiding your trouble.
HTH Michael Am Dienstag, 2. Oktober 2007 22:32 schrieb Andrea Giuliano: > [EMAIL PROTECTED] wrote: > > a.) mjpegtools-1.8 does not have the -U option for lavplay, 1.9 does. > > > > b.) mmap playback with on-board: it is interesting that I also have an > > on- board sound card, and I do have problem with mmap, just as Andrea > > has. My on-board sound card driver is snd_intel8x0 which is a well > > established driver. Could it be that mmap fails because the card is not > > pci or ISA, because it is "on-bboard"? Just a thought from a non-C > > programmer or from a non-expert of device drivers. > > Actually, I have some other problems that I think are all related. > > I tried to record audio with arecord using the on-board ICH5 sound card, > or whatever it is, that thing driven by snd-intel-8x0, the same as > Janos, I guess. > > Well, the good news are that arecord works perfectly after lowering the > "Capture" control, which is not Line-in, nor anything that matches a > jack on the rear panel: it's just a control named "Capture" by > gnome-sound-control and by amixer. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
