--- Lee Revell <[EMAIL PROTECTED]> wrote: > On Tue, 2006-05-23 at 21:43 +0100, Taiyo Rawle > wrote: > > > > > What kernel version? > > > > > > > > > > Bad things will happen if you disconnect a > USB > > > audio device during > > > > > playback. > > > > > > > > > > > > > USB was supposed to be hot-pluggable. > > > > > > > > Bug in the audio HW, kernel or ALSA ? > > > > > > > > No bad things (except for data corruption) > should > > > ever happen > > > > if a hot-pluggable device is disconnected. > > > > > > > > For example, my external hard drive sometimes > > > incidentally powered > > > > of because of loose connector on the box, thus > > > disconnected. > > > > > > I don't know. XMMS is not ideal for testing. > > > > My mistake, XMMS works if I select the emu10k1 > device. > > aplay tells me "aplay: set_params:882: Sample > format > > non available" on the USB card if I specify it > with > > the -D option, but it works automagically if I > don't > > specify any device. > > > > I am guessing you used -D hw:X - this instructs ALSA > not to do any > software format conversion, so will fail unless the > .wav exactly matches > the format supported by the device. -D plughw:x (or > omitting the -D > argument) enables software format conversion.
Aaah... I see! Thanks. I still get the static on right problem with mono files though. > > > What happens if you disconnect the device while > > > "aplay" is playing a > > > file, then replug it and "aplay" the same file > > > again? > > > > > > Lee > > > > If I unplug it while aplay is playing then aplay > says > > "underrun!!! (at least 0.053 ms long)". I need to > kill > > all programs that use alsa (like kmix) before the > USB > > card can be used again, aplay works properly after > > this. > > What error does aplay give you if you re-plug the > device without killing > all ALSA using apps? It doesn't give any further errors. The iO|2 box has an indicator that illuminates "when a USB connection has been established", this doesn't (re-)illuminate until I kill all alsa apps, I needed to Ctrl+C aplay. Cheers! -Taiyo Send instant messages to your online friends http://uk.messenger.yahoo.com ------------------------------------------------------- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642 _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
