Lee Revell wrote: >>>> First of all does this chip support hardware mixing and full duplex? >>> Hardware mixing no, full duplex yes >> What is the benefit of hardware mixing at all? > 1. It Just Works Ok,... but in principle it does not give me features/quality that are not achiveable via software mixign
> 2. Less CPU usage That should not be my problems,... 4 cores availble for this ;) >> So if I buy an expensive soundcard like this (it costs about € 150,00) should >> the card have the hardware mixing feature? > I don't think any new cards support it. The trend is to do all mixing > in software these days - CPUs are fast and it makes the hardware > cheaper. So the Aureon 7.1 Universe should be a good choice, or not? Or is there a card with same features / price class that I should prefer? >> What my card should be able to do is (of course with all additional features >> like 7.1 sound and so on)... >> - esound (or any other sound daemon) should be able to access the card so >> that >> GNOME applications that use esd can play sounds or record audio >> - but in each case it should be possible for other processes to access the >> ALSA >> devices too (both playing and recording); like mplayer,.. or gstreamer >> applications if I set up gst to use ALSA). >> - and I want Ekiga (gnomemeeting, or any other VoIP software to be able to >> open >> conferences (multiple conferences too, although I think Ekiga itself does not >> support this yet) - which means Ekiga must be able to play and record audio >> (via >> ALSA but not ESD) - AND !! while doing this (communication via VoIP) I still >> want to hear my other system sounds (those from GNOME via esd or other ALSA >> using applications. >> >> Ok,.. so of course full duplex is required for all the above (otherwise I >> would >> not be able to record and hear simultaneously). >> But is hardware mixing required for this? If so,.. can all this achieved >> (without any drawbacks to the hardware mixing way !!!) via software mixing? > > Hardware mixing makes it much easier but it should work with software > mixing (dmix) Ok,.. than all this (especially running Ekiga and don't require to stop esd or so) is possible with dmix, too. I just have to read into the configuration ;) Correct? >> I'm very sure that ESD runs in ALSA mode, because I don't have activated any >> OSS >> stuff in the kernel (not even the wrappers), and I've installed the Debian >> package libesd-alsa0. >> > > OK that should not block the soundcard (try lsof /dev/dsp or > fuser /dev/dsp to be sure), or don't load the snd-pcm-oss module, and > you won't get a /dev/dsp at all. I even don't have these modules compiled, nor do I have /dev/dsp* Regards, Chris. ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
