我在 Lenovo Thinkpad T430 筆記型電腦上運行 Kubuntu 13.10。
我有一個藍牙音箱。
經過大量故障排除後，我設法連接到揚聲器。bt-device報告：
$ bt-device -l
Added devices:
[Samsung] W_Audio (5C:F6:DC:88:05:62)
$ bt-device -i 5C:F6:DC:88:05:62
[5C:F6:DC:88:05:62]
Name: [Samsung] W_Audio
Alias: [Samsung] W_Audio [rw]
Address: 5C:F6:DC:88:05:62
Icon: audio-card
Class: 0x240404
Paired: 1
Trusted: 1 [rw]
Blocked: 0 [rw]
Connected: 1
UUIDs: [AudioSink, AVRemoteControlTarget, AVRemoteControl]
當我連接到揚聲器時，它會播放歡迎聲音。當我單擊藍牙管理器中的“音訊接收器”（我認為是 BlueMon）時，揚聲器會播放另一種聲音，並且藍牙管理器中會出現“成功”訊息。
但藍牙音訊不會出現在設定中的任何位置。沒有將聲音定向到揚聲器的選項。所有聲音都來自筆記型電腦揚聲器，藍牙揚聲器靜音。
我安裝了pulseaudio和pavucontrol（以及一堆其他pulseaudio和藍牙相關的軟體包）。 「輸出設備」標籤上的 Pavucontrol 僅顯示主音訊設備，但根據網路上的指南，藍牙音訊應該會出現在那裡。
那麼...一旦我連接了藍牙揚聲器，我如何在那裡發出聲音？
一些可能相關的轉儲：
$ pacmd list-sinks
Welcome to PulseAudio! Use "help" for usage information.
>>> 1 sink(s) available.
* index: 0
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: RUNNING
suspend cause:
priority: 9959
volume: 0: 86% 1: 86%
0: -3,93 dB 1: -3,93 dB
balance 0,00
base volume: 100%
0,00 dB
volume steps: 65537
muted: no
current latency: 5,62 ms
max request: 1 KiB
max rewind: 64 KiB
monitor source: 0
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 1
linked by: 3
configured latency: 5,80 ms; range is 0,50 .. 371,52 ms
card: 0 <alsa_card.pci-0000_00_1b.0>
module: 5
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC3202 Analog"
alsa.id = "ALC3202 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 0xf2530000 irq 48"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "1e20"
device.product.name = "7 Series/C210 Series Chipset Family High Definition Audio Controller"
device.form_factor = "internal"
device.string = "front:0"
device.buffering.buffer_size = "65536"
device.buffering.fragment_size = "32768"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Built-in Audio Analog Stereo"
alsa.mixer_name = "Intel PantherPoint HDMI"
alsa.components = "HDA:10ec0269,17aa21f3,00100203 HDA:80862806,80860101,00100000"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-speakers"
analog-output-headphones: Headphones (priority 9000, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-headphones"
active port: <analog-output-speaker>
$ pacmd list-sources
Welcome to PulseAudio! Use "help" for usage information.
>>> 2 source(s) available.
index: 0
name: <alsa_output.pci-0000_00_1b.0.analog-stereo.monitor>
driver: <module-alsa-card.c>
flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: RUNNING
suspend cause:
priority: 1950
volume: 0: 100% 1: 100%
0: 0,00 dB 1: 0,00 dB
balance 0,00
base volume: 100%
0,00 dB
volume steps: 65537
muted: no
current latency: 0,00 ms
max rewind: 64 KiB
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 2
linked by: 2
configured latency: 20,00 ms; range is 0,50 .. 371,52 ms
monitor_of: 0
card: 0 <alsa_card.pci-0000_00_1b.0>
module: 5
properties:
device.description = "Monitor of Built-in Audio Analog Stereo"
device.class = "monitor"
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xf2530000 irq 48"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "1e20"
device.product.name = "7 Series/C210 Series Chipset Family High Definition Audio Controller"
device.form_factor = "internal"
device.string = "0"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
* index: 1
name: <alsa_input.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: RUNNING
suspend cause:
priority: 9959
volume: 0: 0% 1: 0%
0: -inf dB 1: -inf dB
balance 0,00
base volume: 10%
-60,00 dB
volume steps: 65537
muted: no
current latency: 0,00 ms
max rewind: 0 KiB
sample spec: s16le 2ch 48000Hz
channel map: front-left,front-right
Stereo
used by: 1
linked by: 1
configured latency: 20,00 ms; range is 0,50 .. 341,33 ms
card: 0 <alsa_card.pci-0000_00_1b.0>
module: 5
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC3202 Analog"
alsa.id = "ALC3202 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 0xf2530000 irq 48"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "1e20"
device.product.name = "7 Series/C210 Series Chipset Family High Definition Audio Controller"
device.form_factor = "internal"
device.string = "front:0"
device.buffering.buffer_size = "65536"
device.buffering.fragment_size = "32768"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Built-in Audio Analog Stereo"
alsa.mixer_name = "Intel PantherPoint HDMI"
alsa.components = "HDA:10ec0269,17aa21f3,00100203 HDA:80862806,80860101,00100000"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-input-microphone-internal: Internal Microphone (priority 8900, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-input-microphone"
analog-input-microphone-dock: Dock Microphone (priority 7800, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-input-microphone"
analog-input-microphone: Microphone (priority 8700, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-input-microphone"
active port: <analog-input-microphone-internal>
答案1
要在 Pulse Audio 中啟用藍牙音訊裝置發現功能，我們需要確保已載入pulseaudio 的藍牙套件（脈衝音訊模組藍牙 應該預設安裝）。
這模組藍牙發現then 負責將藍牙音訊設備新增為已知音訊裝置的接收器（或 HSP/電話模式下的來源）。
要載入這個模組，我們可以發出
pactl load-module module-bluetooth-discover
為了始終在pulseaudio聲音伺服器啟動時載入此模組，我們將以下幾行新增至我們的/etc/pulse/default.pa（或我們的自訂基於使用者的~/.pulse/default.pa或~/.config/pulse/default.pa相應的，如果此檔案存在的話）：
### Automatically load driver modules for Bluetooth hardware
.ifexists module-bluetooth-discover.so
load-module module-bluetooth-discover
.endif
答案2
我有同樣的問題。在https://wiki.archlinux.org/index.php/Bluetooth_headset我找到了這個：
注意：設備預設情況下可能處於關閉狀態。在 pavucontrol 的「設定」標籤中選擇其音訊設定檔（OFF、A2DP、HFP）。
選擇A2DP後有聲音。