http://bugs.winehq.org/show_bug.cgi?id=5159
--- Comment #48 from Jan Kalab pitlicek@gmail.com 2010-06-25 07:35:39 --- After I upgraded to Ubuntu 10.04 (64bit) and started using PulseAudio instead of ALSA and probably latest CS:S update, the mike transmit seems ok for me too.