Re: No sounds other than console beep; what's wrong? (solved?)

Mon, 31 Dec 2007 (14:08 -0500 UTC) robert delius royar wrote: > I do not know which CVS first exhibited this problem, but it first > showed up when I recompiled XEmacs 21.5.28b after upgrading to Mac OS > X 10.5.1. The newest changelog in the tree is dated 2007-12-21, but > version.sh is no longer being updated in CVS. > > I have included installation info at the end of this message. > > I can no longer get XEmacs to play sounds through my (working) > Enlighten Sound Daemon (v 2.38). I have verified that ESD is working > on the system (launched at startup and plays through 127.0.0.1:16001). > I verified this by playing > /usr/local/share/xemacs/xemacs-packages/etc/sounds/boing.wav with > esdplay; I also verified that sound-extension-list is ".wav" and that > load-default-sounds reports "Loading sounds..." and "Loading > sounds...done". > > However, no sounds play in XEmacs other than the system beep. And > device-sound-enabled-p returns nil. I found the line (110) in XEmacs src/esd.c that was the root of the problem: sock = esd_play_stream(flags, speed, NULL, ESD_NAME); The function in esdlib is prototyped as int esd_play_stream( esd_format_t format, int rate, const char *host, const char *name ); Passing the value NULL for the host worked until I recompiled XEmacs for Leopard. esd expects a host name or an octet string (with optional port/socketname appended). But the code in esdlib is supposed to accept !host as a signal to use localhost. However, it doesnot to work because of the new scheme for setting DISPLAY in OS X.

If I change the call from XEmacs so that the NULL is replaced by "localhost", the sound plays. If I change the code in esdlib.c so that esd_play_stream checks for host==NULL and calls esd_open_sound("localhost") instead of esd_open_sound(NULL), then the sounds will also work. Either "fix" gets the sounds back. I have not tried the third alternative of setting the environment variable ESPEAKER to "localhost". It might also work; however, on the previous OS (10.4), setting ESPEAKER caused hangups in XEmacs. On 10.3, it was the only way to get esd to play. I just wanted to followup in case anyone else using OS X 10.5 found a similar problem with sounds. BTW: Is anyone working on a way to use CoreAudio from within XEmacs--similar to the way Windows sound is treated?