Raspi蓝牙:播放与录音

边缘计算

Published

February 27, 2019

距离上一篇文章已经过去太久了,现在尝试使用树莓派的蓝牙录音.

添加用户到蓝牙组

sudo usermod -G bluetooth -a pi 
sudo reboot

安装软件包

sudo apt-get install pulseaudio pulseaudio-module-bluetooth

搜索配对

其中power on是必须的,否则是无法connect成功的.

bluetoothctl
power on
agent on
default-agent
scan on

开始搜索后,先quit然后启动pulseaudio:

quit
sudo killall bluealsa
pulseaudio --start

然后回来链接设备,可能还要输入下scan on:

pair xx:xx:xx:xx:xx:xx
trust xx:xx:xx:xx:xx:xx
connect xx:xx:xx:xx:xx:xx
scan off

配置A2DP

pacmd list-cards
pacmd set-card-profile bluez_card.xx_xx_xx_xx_xx_xx a2dp_sink
pacmd set-default-sink bluez_sink.xx_xx_xx_xx_xx_xx.a2dp_sink

然后使用paplay播放声音

配置HSP

这里要用官方的命令输入到蓝牙中才可以正确配置.

sudo hcitool cmd 0x3F 0x01C 0x01 0x02 0x00 0x01 0x01
pacmd set-card-profile bluez_card.xx_xx_xx_xx_xx_xx headset_head_unit
pacmd set-default-sink bluez_sink.xx_xx_xx_xx_xx_xx.headset_head_unit
pacmd set-default-source bluez_source.xx_xx_xx_xx_xx_xx.headset_head_unit

录音以及播放~

parecord -v voice.wav
paplay -v voice.wav