On my terminal I see : [00000622] aout_directx audio output warning: cannot create a direct sound device [00000622] aout_directx audio output error: cannot initialize DirectSound [00000622] aout_directx audio output debug: closing audio device [00000622] waveout audio output warning: waveOutOpen failed WAVERR_BADFORMAT [00000622] waveout audio output warning: waveOutOpen failed WAVERR_BADFORMAT [00000622] waveout audio output warning: waveOutOpen failed WAVERR_BADFORMAT [00000622] waveout audio output warning: waveOutOpen failed WAVERR_BADFORMAT [00000622] main audio output debug: using audio output module "dummy" [00000622] main audio output debug: output 'fl32' 48000 Hz Stereo frame=1 samples/8 bytes [00000622] main audio output debug: mixer 'fl32' 48000 Hz Stereo frame=1 samples/8 bytes [00000622] main audio output debug: no need for any filter [00000622] main audio output debug: looking for audio mixer module: 3 candidates [00000622] main audio output debug: using audio mixer module "trivial_mixer" [00000622] main audio output debug: input 'fl32' 48000 Hz Stereo frame=1 samples/8 bytes [00000622] main audio output debug: filter(s) 'fl32'->'fl32' 52800 Hz->48000 Hz Stereo->Stereo