ALSA and Mednafen: No Sound [closed]

I am getting no sound in Mednafen on Linux MInt 17.1 Mate 64-bit. Relevant part of ~/.mednafen/mednafen.cfg are:

;Disable speed throttling when sound is disabled.
nothrottle 0
;Automatically save and load save states when a game is closed or loaded, respectively.
autosave 0
;Select sound driver.
sounddriver default
;Select sound output device.
sounddevice default
;Sound volume level, in percent.
soundvol 100
;Enable sound emulation.
sound 1
;If non-zero, specifies the desired period size in microseconds. Currently only affects OSS and ALSA output.
sound.period_time 0
;Specifies the desired size of the sound buffer, in milliseconds.
soundbufsize 32
;Specifies the sound playback rate, in frames per second("Hz"). soundrate 48000

Relevant part of output when starting Mednafen from command line is:

Initializing sound... Using "ALSA" audio driver with device "default":ALSA Error: snd_pcm_open(&alsa_pcm, id ? id : "hw:0", SND_PCM_STREAM_PLAYBACK, 0) No such file or directory
Error opening a sound device.

I have alsa-base installed, do I need something else too? Any ideas?