A NOTE has been added to this issue. ====================================================================== <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2147> ====================================================================== Reported By: Gene Heskett Assigned To: tiwai ====================================================================== Project: ALSA - driver Issue ID: 2147 Category: PCI - atiixp Reproducibility: always Severity: major Priority: normal Status: assigned Distribution: FC5, uptodate Kernel Version: 2.6.16-1.2111_FC5 ====================================================================== Date Submitted: 05-23-2006 03:52 CEST Last Modified: 05-30-2006 03:46 CEST ====================================================================== Summary: lack of full duplex operation for ati-ixp chipset. Description: skype, ekiga, audacity, and generally any program that needs to both transmit and receive, using isolated paths, fails in playback when recording. In skype, I sound great at the far end, but reception may or may not work, with emphasis on the not. What I hear in the phones, or in the speakers, sounds like what you would get if you took a sentence of spoken words, break it up into say 5ms pieces, and play them at maybe 10 of these little snippets per second, so that the resultant sound is broken up to the point of no comprehension, and stretched in time by a considerable amount. In audacity, simultanious playback, or play one track while recording another, likewise fails in that only very short snippets of the played track are output to the phones or speakers. Likewise, ekiga suffers from this same effect, I'm told I sound great on teh other end, but I can't hear more than half a word occasionally. ====================================================================== ---------------------------------------------------------------------- sprocketboy - 05-29-06 21:24 ---------------------------------------------------------------------- This is a "me too" type of post, but maybe I can add some more useful information. I have tried to record while playing (overdub) in audacity as well, and have never gotten it to work. The default audacity-1.2.3 RPM for Mandriva is compiled with the portaudio=v18 flag set, which means that audacity looks for an OSS driver, or in the case of ALSA, an OSS emulator. I have tried compiling both the stable audacity-1.2.3 and the beta 1.3.0 versions with the portaudio=v19 flag set. In both cases, the "ALSA ATI IXP" driver appears as a device selection in audacity's "Preferences" dialog, but if I select the ALSA driver for input and output and try to record, audacity locks up the kernel. Here is the relevant output for 'lspci -v' on my system. I am using the Mandriva kernel 2.6.12-22mdk, custom compiled with support for SMP, 4GB himem, hyperthreading (I have a dual-core processor on a Toshiba laptop), and pre-emptible kernel. Do any of those settings break the ati-ixp driver? 00:14.5 Multimedia audio controller: ATI Technologies Inc IXP150 AC'97 Audio Controller (rev 01) Subsystem: Toshiba America Info Systems: Unknown device ff01 Flags: bus master, 66Mhz, slow devsel, latency 64, IRQ 17 Memory at e8004400 (32-bit, non-prefetchable) [size=256] ---------------------------------------------------------------------- Raymond - 05-30-06 03:46 ---------------------------------------------------------------------- strace -e trace=open aplay any.wav This tell you where do alsa-lib search and open those conf files ? The device "default" is used whenever you don't specify -D device for those alsa-util aplay -v any.wav Plug PCM: Direct Stream Mixing PCM <--- dmix Hardware PCM card 0 'ATI IXP' device 0 subdevice 0 <---- hw hw is the slave pcm of dmix in ATIIXP.conf Refer to the changelog in README.txt of audacity-src-1.2.4b Changes in 1.2.2: * Added support for Software Playthrough (listen to what you're recording while recording it, or while monitoring using a VU meter) - this makes it possible, for example, to record using one audio device while listening to it play through a separate device. Issue History Date Modified Username Field Change ====================================================================== 05-23-06 03:52 Gene Heskett New Issue 05-23-06 03:52 Gene Heskett Distribution => FC5, uptodate 05-23-06 03:52 Gene Heskett Kernel Version => 2.6.16-1.2111_FC5 05-23-06 15:01 tiwai Note Added: 0009934 05-23-06 16:46 Gene Heskett Note Added: 0009938 05-23-06 17:24 tiwai Note Added: 0009941 05-23-06 18:07 Gene Heskett Note Added: 0009943 05-23-06 19:14 tiwai Note Added: 0009947 05-28-06 03:08 Gene Heskett Note Added: 0009985 05-28-06 03:20 Gene Heskett Note Added: 0009986 05-28-06 03:22 rlrevell Note Added: 0009987 05-28-06 03:58 Raymond Note Added: 0009988 05-28-06 04:04 Raymond Note Edited: 0009988 05-28-06 04:05 Raymond Note Edited: 0009988 05-28-06 04:24 rlrevell Note Added: 0009989 05-28-06 04:51 Gene Heskett Note Added: 0009990 05-28-06 05:10 rlrevell Note Added: 0009991 05-28-06 05:27 Gene Heskett Note Added: 0009992 05-28-06 05:34 rlrevell Note Added: 0009993 05-28-06 05:37 Gene Heskett Note Added: 0009994 05-28-06 06:13 rlrevell Note Added: 0009995 05-28-06 06:29 Gene Heskett Note Added: 0009998 05-28-06 06:35 rlrevell Note Added: 0009999 05-28-06 08:22 Raymond Note Added: 0010000 05-28-06 08:32 Raymond Note Added: 0010001 05-28-06 13:17 Gene Heskett Note Added: 0010002 05-29-06 03:13 Raymond Note Added: 0010005 05-29-06 04:24 Gene Heskett Note Added: 0010006 05-29-06 11:41 Raymond Note Added: 0010010 05-29-06 14:56 Raymond Note Edited: 0010005 05-29-06 15:34 Raymond Note Added: 0010011 05-29-06 15:55 Gene Heskett Note Added: 0010012 05-29-06 21:16 sprocketboy Issue Monitored: sprocketboy 05-29-06 21:24 sprocketboy Note Added: 0010013 05-30-06 03:46 Raymond Note Added: 0010016 ====================================================================== _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
