Looks like festival depends on aplay, provided by alsa-utils. $ echo hello | festival --tts sh: aplay: command not found Reproducible: Always Steps to Reproduce: 1. emerge app-accessibility/festival-2.1-r1 2. $ echo hello | festival --tts Actual Results: sh: aplay: command not found Expected Results: Plays sound, no error. emerging media-sound/alsa-utils-1.0.28 resolves the issue.
Created attachment 403850 [details] emerge --info
commit 3a61bdb6f223cf4ed2fdc878df6a68e16e1d7787 Author: Alexis Ballier <aballier@gentoo.org> Date: Thu Dec 29 14:31:29 2016 +0100 app-accessibility/festival: add missing rdepend on alsa-utils, bug #550266 thx