On Tue, 19 Nov 2002, Mark Ziegler wrote: > ecasound -r -z:db -z:intbuf -f:s32_le,12,44100 -i alsa,hw:1 -f:s32_le,2,44100 > -o test.wav [...] > under root, but usually my system hangs complete after starting ecasound. > Only once it worked and it also reported that some data are lost.
How about if you start as non-root and without the -r? It should still be relatively stable due to the -z:db (disk buffering) and -z:intbuf (soundcard buffering) options. If this fails, I'd be interested in seeing the exact error messages printed by ecasound. > the problem, that my IDE-drives are buffered in memory, and sometime huge > buffers are written back to the harddisk and the alsa driver doesn't get time > to write out his buffer? Is it more a problem of the userspace (arecord) or > of the alsa-driver? Make sure you have DMA enabled for disk i/o. See for instance the article at http://linux.oreillynet.com/lpt/a/467 > Or can anybody explain the problem roughly? I think my 2 GHz processor should > be completely bored by transporting 44.1kHz * 2 * 16 / 8 = 176400 Bytes/s > from the sound card to the IDE disk. Yep, definitely something goes badly wrong. -- http://www.eca.cx Audio software for Linux! ------------------------------------------------------- This sf.net email is sponsored by: To learn the basics of securing your web site with SSL, click here to get a FREE TRIAL of a Thawte Server Certificate: http://www.gothawte.com/rd524.html _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
