我有一个 Ubuntu 20.10 和一对凯夫LSX我想使用 Apple AirPlay 2 连接。我设法使用 Windows 10 上的 iTunes 和我的 iPhone 8 来完成此操作，两者都与我的 Ubuntu 位于同一 LAN 中。对于Ubuntu我用过PulseAudio 首选项（帕普夫斯） 启用使可发现的 Apple AirTunes 声音设备在本地可用（通过创建链接解决了相关错误sudo ln -sv '/usr/lib/pulse-15.0+dfsg1' /usr/lib/pulse-15.0）。 Ubuntu 可以很好地检测到扬声器，但是在播放任何内容时我没有声音，并且日志中出现以下错误：
Unexpected/Unhandled response: RTSP/1.0 403 Forbidden
Unexpected/Unhandled response: Content-Length: 0
Unexpected/Unhandled response: Server: AirTunes/366.0
Unexpected/Unhandled response: CSeq: 3
为什么会发生这种情况以及我应该采取什么措施来解决它？
$pacmd list sinks
2 sink(s) available.
index: 1
name: <alsa_output.pci-0000_00_1f.3.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: IDLE
suspend cause: (none)
priority: 9039
volume: front-left: 45080 / 69% / -9.75 dB, front-right: 45080 / 69% / -9.75 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 1999.62 ms
max request: 344 KiB
max rewind: 344 KiB
monitor source: 1
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
configured latency: 2000.00 ms; range is 0.50 .. 2000.00 ms
card: 0 <alsa_card.pci-0000_00_1f.3>
module: 5
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC1220 Analog"
alsa.id = "ALC1220 Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0x6001110000 irq 140"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1f.3"
sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "a348"
device.product.name = "Cannon Lake PCH cAVS"
device.form_factor = "internal"
device.string = "front:0"
device.buffering.buffer_size = "352800"
device.buffering.fragment_size = "176400"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Built-in Audio Analog Stereo"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-output-lineout: Line Out (priority 9000, latency offset 0 usec, available: yes)
properties:
analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-headphones"
active port: <analog-output-lineout>
* index: 2
name: <raop_output.LSX-02869F.local>
driver: <module-raop-sink.c>
flags: NETWORK HW_MUTE_CTRL HW_VOLUME_CTRL LATENCY
state: IDLE
suspend cause: (none)
priority: 0
volume: front-left: 65536 / 100%, front-right: 65536 / 100%
balance 0.00
base volume: 65536 / 100%
volume steps: 65537
muted: no
current latency: 0.00 ms
max request: 1 KiB
max rewind: 0 KiB
monitor source: 2
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
fixed latency: 250.00 ms
card: 1 <raop_client._192.168.1.252__7000>
module: 10
properties:
device.string = "[192.168.1.252]:7000"
device.description = "LSX 02869F"
device.model = "LSX"
device.icon_name = "audio-card"
ports:
network-output: [192.168.1.252]:7000 (priority 0, latency offset 0 usec, available: unknown)
properties:
active port: <network-output>
答案1
对我来说，在 Raspberry Pi 4 Model B Rev 1.4 上，https://github.com/juhovh/shairplay作品。
克隆，构建项目，然后复制服务文件：
sudo cp -v /home/gigi/compile/shairplay/shairplay.service /etc/systemd/system/ && sudo chown root: /etc/systemd/system/shairplay.service && sudo chmod 664 /etc/systemd/system/shairplay.service && sudo systemctl daemon-reload
确保将 airport.key 复制到根目录：
sudo cp -v /home/gigi/compile/shairplay/airport.key /
启动服务：
sudo systemctl start shairplay
我注意到启动/重新启动我的 Raspberry Pi 后该服务根本无法工作；发出命令sudo systemctl restart shairplay可以解决问题。