興味本意で随分前に買って放置していた中華BluetoothのBT-DONGLEをRaspberry Pi Zero WHにBluetoothスピーカーとして使えるか試した
結果から言うとBT-DONGLEと500円スピーカーでそこそこの音源が再生出来たがノイズのプチプチだったのさ
さすがは中華Bluetooth、Amazonで検索したけどー日本はすでにトンズラ、海外市場に似たものはあったけどちょっと違うような
https://www.amazon.in/SS-Electronics-SYNEXTIX-Bluetooth-Receiver/dp/B078YS2RLQ
# apt install pulseaudio-module-bluetooth
# vi /etc/systemd/system/pulseaudio.service
[Unit]
Description=Pulse Audio
[Service]
Type=simple
ExecStart=/usr/bin/pulseaudio --system --disallow-exit --disable-shm
[Install]
WantedBy=multi-user.target
# vi /etc/dbus-1/system.d/pulseaudio-bluetooth.conf
# systemctl start pulseaudio.service
Created symlink /etc/systemd/system/multi-user.target.wants/pulseaudio.service → /etc/systemd/system/pulseaudio.service.
# systemctl enable pulseaudio.service
# bluetoothctl
Agent registered
[bluetooth]# help
Menu main:
Available commands:
-------------------
advertise Advertise Options Submenu
scan Scan Options Submenu
gatt Generic Attribute Submenu
list List available controllers
show [ctrl] Controller information
select Select default controller
devices List available devices
paired-devices List paired devices
system-alias Set controller alias
reset-alias Reset controller alias
power <on/off> Set controller power
pairable <on/off> Set controller pairable mode
discoverable <on/off> Set controller discoverable mode
agent <on/off/capability> Enable/disable agent with given capability
default-agent Set agent as the default one
advertise <on/off/type> Enable/disable advertising with given type
set-alias Set device alias
scan <on/off> Scan for devices
info [dev] Device information
pair [dev] Pair with device
trust [dev] Trust device
untrust [dev] Untrust device
block [dev] Block device
unblock [dev] Unblock device
remove Remove device
connect Connect device
disconnect [dev] Disconnect device
menu Select submenu
version Display version
quit Quit program
exit Quit program
help Display help about this program
export Print evironment variables
[bluetooth]# scan on
[NEW] Device DA:ED:2A:4D:62:5F BT_DONGLE
[bluetooth]# scan off
Discovery stopped
[bluetooth]# pair DA:ED:2A:4D:62:5F
Pairing successful
[bluetooth]# connect DA:ED:2A:4D:62:5F
Connection successful
trust DA:ED:2A:4D:62:5F
Changing DA:ED:2A:4D:62:5F trust succeeded
quit
# usermod -a -G pulse-access,audio root
この後ななちゃんの子守唄
# mplayer nennendog.mp3
MPlayer 1.3.0 (Debian), built with gcc-7 (C) 2000-2016 MPlayer Team
do_connect: could not connect to socket
connect: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing nennendog.mp3.
libavformat version 57.83.100 (external)
Audio only file format detected.
Load subtitles in ./
==========================================================================
Opening audio decoder: [mpg123] MPEG 1.0/2.0/2.5 layers I, II, III
AUDIO: 48000 Hz, 2 ch, s16le, 128.0 kbit/8.33% (ratio: 16000->192000)
Selected audio codec: [mpg123] afm: mpg123 (MPEG 1.0/2.0/2.5 layers I, II, III)
==========================================================================
AO: [pulse] Init failed: Connection refused
Failed to initialize audio driver 'pulse'
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
Video: no video
Starting playback...
A: 42.9 (42.8) of 43.0 (43.0) 0.9%
