Andy, I have no cables from this CDROM drive to any sound card in this system. Windows Media Player plays CDs digitally under Win ME also. I get no clicks and pops at all when hitting any key under Win ME, nor when moving Windows around.
Under Linux I'm getting clicks every time I hit num_lock or caps_lock. Since you're ripping the data digitally and sending it on to the sound driver, my question would be whether you are buffering enough data to get around these sorts of problems? Memory is cheap. ;-) I've got 768MB. Use a little. IT won't upset me! ;-) To be clear, I'm in no way suggesting where this issue might be getting caused. For all I know it could be alsaplayer, or jack, or alsa, or the AP2496 driver, or my software or hardware configuration. Since I'm a new user I'm just trying to understand what the baseline is right now. Does anyone else get clicks FYI - my keyboard is behind a LinkSys KVM, but that doesn't cause problems under Windows. Thanks, Mark > I understand the basic issue with the clicks as you explain it, although > I'm somewhat surprised that it is happening this much. Possibly it's only > this Linux system? Why should I hear more clicks playing CDs under Linux on > this computer when I never hear any clicks playing them on this same machine > under Windows? AlsaPlayer 'rips' CD audio digitally in realtime from your CD drive in order to play it. Most other CD players just send PLAY commands to the CDROM drive which does the digital-analog decoding and feeds it to the soundcard's CD-in connector. This requires no CPU interaction at all. Both methods have their pros and cons of course. > One other source of clicks may well be the way interrupt are setup of > this PC. I noticed after I sent the message yesterday that pressing either > NUM_LOCK or CAP_LOCK caused the same xrun message and a click. I'm imaging > that every key hit causes an interrupt and the keyboard stuff to get > invoked, but those cause a light to get turned on on the keyboard. Probably > longer delays. My USB keyboard always times out after the caps lock key is first used. But overall keyboard interrupts should not be the source of xruns (work as the results of keypresses is another thing ;) > Do I need, and can I configure, for larger buffers somewhere to help > manage this? Not that I know of. Andy ------------------------------------------------------- This sf.net email is sponsored by: OSDN - Tired of that same old cell phone? Get a new here for FREE! https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 _______________________________________________ Alsa-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-user
