using audacity-1.1.1-r1 on a 1.4 system, i've managed to get it compiled but audacity can't seem to output audio. my system uses alsa and i've verified that applications that use OSS only worked correctly via the ALSA OSS emulation. when i try to select an output device in preferences, there are no devices listed in the popup menu. i have permissions for /dev/dsp. my first thought was to manually edit ~/.Audacity and add the device manually to the text file. no luck. (though audacity does preserve the entry, i still can't get sound output.) also, when i start audacity, i get a small dialog error: "Host error." in looking around for this error, it seemed to me that it was related to the PortAudio library. since I didn't have this merged, i emerged it and recompiled. still no luck. (and i don't think audacity even requires port audio on linux, although the web site makes it unclear.) it is unclear if this is an audacity bug, or a gentoo bug, but it's at least an audacity-on-gentoo issue.. happy to provide more debugging help.. cheers... Reproducible: Always Steps to Reproduce:
emerge info... sorry, forgot it... Portage 2.0.46-r12 (default-x86-1.4, gcc-3.2.2, glibc-2.3.1-r2) ================================================================= System uname: 2.4.20-gentoo-r1 i686 Pentium III (Coppermine) GENTOO_MIRRORS="http://www.ibiblio.org/pub/Linux/distributions/gentoo" CONFIG_PROTECT="/etc /var/qmail/control /usr/kde/2/share/config /usr/X11R6/lib/X11/xkb /usr/kde/3.1/share/config /usr/kde/3/share/config /usr/share/config" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" PORTDIR="/usr/portage" DISTDIR="/usr/portage/distfiles" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR_OVERLAY="" USE="x86 oss 3dnow apm cups gif libg++ mikmod mmx mpeg nls pdflib qtmt truetype xmms xv zlib gtkhtml gdbm berkdb slang bonobo svga tcltk guile libwww esd imlib motif opengl X -gnome kde avi crypt encode flash gd gpm gtk imap ipv6 java jikes jpeg mozilla mpg mysql ncurses oggvorbis pam perl png python qt quicktime readline samba scanner sdl spell ssl tcpd xml xml2 tiff cdr dvd ipsec arts maildir alsa" COMPILER="gcc3" CHOST="i686-pc-linux-gnu" CFLAGS="-march=pentium3 -O3 -pipe" CXXFLAGS="-march=pentium3 -O3 -pipe" ACCEPT_KEYWORDS="x86" MAKEOPTS="-j3" AUTOCLEAN="yes" SYNC="rsync://rsync.gentoo.org/gentoo-portage" FEATURES="sandbox ccache"
okay, found the problem. audacity doesn't play nicely when someone else is using /dev/dsp... for me, that was arts. the audacity guys recommend setting 'auto-suspend time' to 5 seconds in the sound control panel. killing arts also fixes this quite neatly. cheers..
glad it works :)
Audacity still don't work with ALSA only. Still getting "Error: host error" when loading audacity and it won't play any sounds at all. There seems to be a solution here to make it work with Alsa: http://audacityteam.org/wiki/index.pl?LinuxIssues
