如何解决ubuntu中使用SDL_OpenAudio失败返回错误信息no such audio device

If you built your own SDL, you probably didn't have development headers 
for PulseAudio (or ALSA), so it's trying to use /dev/dsp, which doesn't 
exist on many modern Linux systems (hence, SDL_Init(SDL_INIT_AUDIO) 
succeeds, but no devices are found when you try to open one). "apt-get 
install libasound2-dev libpulse-dev" and rebuild SDL...let the configure 
script find the new headers so it includes PulseAudio and ALSA support. 

If you didn't build your own SDL, maybe you can force it to use a 
different audio path: 

SDL_AUDIODRIVER=pulse ./mytestprogram 
or 
SDL_AUDIODRIVER=alsa ./mytestprogram 


One of those two solutions will (probably) fix your problem. 

--ryan. 

转自http://forums.libsdl.org/viewtopic.php?t=7609