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: 05-23-2006 19:14 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. ====================================================================== ---------------------------------------------------------------------- Gene Heskett - 05-23-06 18:07 ---------------------------------------------------------------------- The only .wav files are the short, maybe 1 second max length, sound effects for many programs. It is an FC5 install about 6 weeks old. 1: no line out or line in on this laptop, only headphone and microphone jacks are actually present. 2: In kmix, the mics red led button seems to be mutually exclusive with almost any other source. Mic works fine. Either in my phones or on the other end. 3. I'll have to see if I can re-rip something to a .wav. And it will be an intermittent effort after today, for quite a few days as I'll be working on an antenna (big broadcast one 40+ feet long, several thousand pounds) for the next 2-3 weeks as much as I can push these 71 year old bones to do. 4: isn't a problem, and I'm not really concerned that 5 will fail, its the playback at stage 3 that won't work. I have done similar tests using audacity and its always the playback that fails, unless playback is the ONLY thing audacity is doing ATM. I'd just like to make skype or zfone to work, but nothing seems to make the incoming audio usable when there is an outgoing stream. ---------------------------------------------------------------------- tiwai - 05-23-06 19:14 ---------------------------------------------------------------------- Grr, you make the things too complex. Let's sort out the thing straight. The duplex problem and the inproper recording are different things. First, check whether both non-duplex playback and recording work properly. For checking playback, you can use speaker-test program in alsa-utils package, too. Run "speaker-test -c2 -tw", for example. As I mentioned, you can test recording of the played stream by setting "Capture Source" to "Mix". It needs no extra hardware setup, so no hard work after running a full marathon. If the full-duplex works by this way, skype and other programs should work as well -- as long as you set up the mixer correctly. Anyway, don't use audacity or whatever apps might be using OSS emulation for tests. They can't be used as references. Use basic tools included in ALSA packages for primary tests. 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 ====================================================================== ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? 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