Universal Software Configurationr - Orange Pi PC2 User Manual

Orange Pi Manual
3) HDMI or 3.5mm Sound Output
a. The sound was default to output via HDMI on image, it could check and
change via alsamixer.
ls /etc/asound.conf
card indicates card number, device indicates device number.
aplay -l it could check the system to load the sound card number and
details
cat /proc/asound/cards
It could be used after use alsamixer to change the sound card.
alsactl store -f /var/lib/alsa/asound.state
parameters
b. It needs to modify configuration on file system for output on 3.5mm of
/etc/asound.conf, modify card1 into card0, or use amixer to modify. The
default one is configured, or you could use player on graphical interface
to switch via sound channel selection.
c. How to use mic sound recording
arecord -d 5 -f cd -t wav 123.wav
After recording, use the following to play
aplay 123.wav
6. Universal Software Configuration
1) Default Account Changing
The default log in account is orangepi. In order to secure, it is
recommended to modify the default orangepi accounts to your own
account, for example Zhangsan. Steps are as follows:
a. Use root account to login Orange Pi(please note that do not login with
the account of orangepi
b. $ usermod -l zhangsan
Zhangsan
www.orangepi.org
Copy right by Shenzhen Xunlong Software Co., Ltd
it also could check the sound card and details
used for saving modified
orangepi Change orangepi account into
19 www.xunlong.tv