[Debian R3 and R4] HDMI audio output

[fattoresaimon]

Hi,
I connected my A20 board with HDMI cable
The video is good, with Mali driver i can watch AVI films with VLC
but there is no audio output
If i do this command:

Code Select Expand

aplay -D hw:1,0 /usr/share/sounds/alsa/Front_Center.wav
i hear correct, but i don't know how to change the default audio card

Thanks!