使用 bluealsa 将音频发送到蓝牙扬声器

Question

好吧，经过一番考虑并购买了另一个蓝牙接收器后，我设法通过 bluealsa 和 mpd 在其上传输音频。

以下是我编辑过的配置：

/usr/share/alsa/alsa.conf.d/20-bluealsa.conf

# BlueALSA integration setup

defaults.bluealsa.service "org.bluealsa"
defaults.bluealsa.profile "a2dp"
defaults.bluealsa.delay 10000
defaults.bluealsa.interface "hci0"
defaults.bluealsa.device "EB:06:EF:A6:A9:D4"

ctl.bluealsa {
        @args [ SRV BAT ]
        @args.SRV {
                type string
                default {
                        @func refer
                        name defaults.bluealsa.service
                }
        }
        @args.BAT {
                type string
                default {
                        @func refer
                        name defaults.bluealsa.battery
                }
        }
        type bluealsa
        service $SRV
        battery $BAT
}

pcm.bluealsa {
        @args [ SRV DEV PROFILE DELAY ]
        @args.SRV {
                type string
                default {
                        @func refer
                        name defaults.bluealsa.service
                }
        }
        @args.DEV {
                type string
                default {
                        @func refer
                        name defaults.bluealsa.device
                }
        }
        @args.PROFILE {
                type string
                default {
                        @func refer
                        name defaults.bluealsa.profile
                }
        }
        @args.DELAY {
                type integer
                default {
                        @func refer
                        name defaults.bluealsa.delay
                }
        }
        type plug
        slave.pcm {
                type bluealsa
                service $SRV
                device $DEV
                profile $PROFILE
                delay $DELAY
        }
        hint {
                show {
                        @func refer
                        name defaults.namehint.extended
                }
                description "Bluetooth Audio Hub"
        }
}

pcm {
        type bluealsa
        interface "hci0"
        device "EB:06:EF:A6:A9:D4"
        profile "a2dp"
}

ctl.!default {
        type bluealsa
        interface "hci0"
}

/lib/systemd/system/blueoth.service

[Unit]
Description=Bluetooth service
Documentation=man:bluetoothd(8)
ConditionPathIsDirectory=/sys/class/bluetooth

[Service]
Type=dbus
BusName=org.bluez
ExecStart=/usr/lib/bluetooth/bluetoothd --noplugin=sap --plugin=a2dp
NotifyAccess=main
#WatchdogSec=10
#Restart=on-failure
CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
LimitNPROC=1

[Install]
WantedBy=bluetooth.target
Alias=dbus-org.bluez.service

/lib/systemd/system/bluealsa.service

[Unit]
Description=BluezAlsa proxy
Requires=bluetooth.service
After=bluetooth.service
[Service]
Type=simple
#User=<user>
#Group=audio
ExecStart=/usr/bin/bluealsa -i hci0 -p a2dp-source -S
[Install]
WantedBy=multi-user.target

不要忘记启用 bluealsa.service：

systemctl enable bluealsa.service

~/.asoundrc 没有必要并且已被删除。

重启后，这个对我有用。另一个问题是它是如何工作的——不幸的是音频非常不稳定。它每半秒就会断一次，这与 NAS 和蓝牙接收器之间的距离无关，也与文件格式无关。不明白为什么，正在寻找解决方案。有什么想法吗？

Answer 1