Qmix is a Qt-based ALSA mixer frontend. It would be a nice addition to Razor-qt. http://gitorious.org/qmix
We have media-sound/qastools in qt overlay, which seems more alive than qmix.
Dead project. Please use media-sound/qastools instead. *qastools-0.17.1 (13 Mar 2012) 13 Mar 2012; Davide Pesavento <pesa@gentoo.org> +metadata.xml, +qastools-0.17.1.ebuild: Import QasTools from qt overlay. Ebuild by <bigfoot@xmail.net> and Ben de Groot <yngwin@gmail.com>, bug #394517.