Bugzilla Bug 220285

The Festival ebuild does not work out-of-the box with alsa:

# echo "Test" | festival --tts
Linux: can't open /dev/dsp

You need to create a .festivalrc that contains (I also attached it, because I
know it's not the prefered way to copy&paste stuff):

(Parameter.set 'Audio_Command "aplay -q -c 1 -t raw -f s16 -r $SR $FILE")
(Parameter.set 'Audio_Method 'Audio_Command)

Then it works just fine.
"aplay" comes with media-sound/alsa-utils, so we should make it a dependency
for festival when alsa is enabled.

Created an attachment (id=151861) [details]
~/.festivalrc for alsa

I put the suggested Parameter.set commands in

/etc/festival/siteinit.scm

which might be a better place for them.

There are already some examples there, but not with aplay.

This is fixed, thanks to Solar.