/bang head against brickwall
OSS Emulation has too many issues with hanging devices resulting in the sound device blocked after first call. This has been a long outstanding bug and one only has to google "/dev/dsp1: Device or resource busy" too see the long list of hits and what a truely huge PITA it is. (Just ask any teamspeak user....)
This is one example where a depreciated interface should be left dead. ALSA has replaced it since 2003 in the kernel. The number of systems still running native OSS is dwarfed by systems running ALSA. Even when OSS was the "defecto standard" in the 2.4 kernel, most major distro's opted to use ALSA with the one long outstanding exception being at the time Redhat.