alsa.err

λ> dac . osc $ 200 
0dBFS level = 32768.0
--Csound version 6.13 (double samples) Jan  1 1970
[commit: none]
libsndfile-1.0.28
UnifiedCSD:  tmp.csd
STARTING FILE
Creating options
Creating orchestra
closing tag
Creating score
rtaudio: ALSA module enabled
rtmidi: ALSA Raw MIDI module enabled
Elapsed time at end of orchestra compile: real: 0.001s, CPU: 0.001s
sorting score ...
	... done
Elapsed time at end of score sort: real: 0.001s, CPU: 0.001s
displays suppressed
0dBFS level = 1.0
orch now loaded
audio buffered in 256 sample-frame blocks
ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Connection refused

 *** Cannot open device 'default' for audio input: Connection refused
Failed to initialise real time audio input
inactive allocs returned to freespace
end of score.		   overall amps:  0.00000
	   overall samples out of range:        0
1 errors in performance
Elapsed time at end of performance: real: 0.173s, CPU: 0.004s
*Main Lib Csound.Base
λ>