我正在尝试通过两只耳机收听视频，一只通过蓝牙连接，另一只通过电缆连接。
这两个选项都可以单独工作，但我无法将其组合起来工作。
我正在使用以下命令：
$ pacmd load-module module-combine-sink \
sink_name=combined5 \
slaves=alsa_output.pci-0000_00_1b.0.analog-stereo,bluez_sink.70_26_05_89_B1_2F.a2dp_sink \
sink_properties=device.description=myCombine5 \
pacmd set-default-sink combined5
为了验证设置，我使用了 和mplayer，vlc并检查了新接收器确实与 一起使用pavucontrol。
令我惊讶的是，新接收器的输出仅到达通过电缆连接的耳机。蓝牙耳机一片寂静。我重新启动pulseaudio并-v查看其日志输出，但找不到任何错误。
有什么想法吗，我还能做什么或检查什么？
编辑：我添加了 pacmd list-sinks 的输出：
$ pacmd list-sinks
6 sink(s) available.
index: 0
name: <alsa_output.pci-0000_00_03.0.hdmi-stereo-extra2>
driver: <module-alsa-card.c>
flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 9030
volume: front-left: 64525 / 98% / -0.41 dB, front-right: 64525 / 98% / -0.41 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 0.00 ms
max request: 0 KiB
max rewind: 0 KiB
monitor source: 0
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
configured latency: 0.00 ms; range is 0.50 .. 1999.82 ms
card: 0 <alsa_card.pci-0000_00_03.0>
module: 6
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "HDMI 2"
alsa.id = "HDMI 2"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "8"
alsa.card = "0"
alsa.card_name = "HDA Intel HDMI"
alsa.long_card_name = "HDA Intel HDMI at 0xf0630000 irq 50"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:03.0"
sysfs.path = "/devices/pci0000:00/0000:00:03.0/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "0a0c"
device.product.name = "Haswell-ULT HD Audio Controller"
device.form_factor = "internal"
device.string = "hdmi:0,2"
device.buffering.buffer_size = "352768"
device.buffering.fragment_size = "176384"
device.access_mode = "mmap+timer"
device.profile.name = "hdmi-stereo-extra2"
device.profile.description = "Digital Stereo (HDMI 3)"
device.description = "Built-in Audio Digital Stereo (HDMI 3)"
alsa.mixer_name = "Intel Haswell HDMI"
alsa.components = "HDA:80862807,80860101,00100000"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
hdmi-output-2: HDMI / DisplayPort 3 (priority 5700, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
active port: <hdmi-output-2>
index: 1
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: SUSPENDED
suspend cause: IDLE
priority: 9039
volume: front-left: 65217 / 100% / -0.13 dB, front-right: 65217 / 100% / -0.13 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: yes
current latency: 0.00 ms
max request: 0 KiB
max rewind: 0 KiB
monitor source: 1
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
configured latency: 0.00 ms; range is 0.50 .. 2000.00 ms
card: 1 <alsa_card.pci-0000_00_1b.0>
module: 7
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC3232 Analog"
alsa.id = "ALC3232 Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "2"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xf0634000 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/card2"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "9c20"
device.product.name = "8 Series HD Audio Controller"
device.form_factor = "internal"
device.string = "front:2"
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"
alsa.mixer_name = "Realtek ALC3232"
alsa.components = "HDA:10ec0292,17aa220c,00100001"
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>
index: 2
name: <bluez_sink.70_26_05_89_B1_2F.a2dp_sink>
driver: <module-bluez5-device.c>
flags: HARDWARE DECIBEL_VOLUME LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 9050
volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 0.00 ms
max request: 3 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: 45.32 ms
card: 2 <bluez_card.70_26_05_89_B1_2F>
module: 26
properties:
bluetooth.protocol = "a2dp_sink"
device.description = "WH-1000XM2"
device.string = "70:26:05:89:B1:2F"
device.api = "bluez"
device.class = "sound"
device.bus = "bluetooth"
device.form_factor = "headset"
bluez.path = "/org/bluez/hci0/dev_70_26_05_89_B1_2F"
bluez.class = "0x240404"
bluez.alias = "WH-1000XM2"
device.icon_name = "audio-headset-bluetooth"
device.intended_roles = "phone"
ports:
headset-output: Headset (priority 0, latency offset 0 usec, available: unknown)
properties:
active port: <headset-output>
* index: 3
name: <combined5>
driver: <module-combine-sink.c>
flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 1000
volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 0.00 ms
max request: 7 KiB
max rewind: 0 KiB
monitor source: 3
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
configured latency: 0.00 ms; range is 0.50 .. 200.00 ms
module: 27
properties:
device.class = "filter"
combine.slaves = "alsa_output.pci-0000_00_1b.0.analog-stereo,bluez_sink.70_26_05_89_B1_2F.a2dp_sink"
device.description = "myCombine5"
device.icon_name = "audio-card"
index: 4
name: <combined5.2>
driver: <module-combine-sink.c>
flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 1000
volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 0.00 ms
max request: 7 KiB
max rewind: 0 KiB
monitor source: 4
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
configured latency: 0.00 ms; range is 0.50 .. 200.00 ms
module: 28
properties:
device.class = "filter"
combine.slaves = "bluez_sink.70_26_05_89_B1_2F.a2dp_sink"
device.description = "myCombineX"
device.icon_name = "audio-card"
index: 5
name: <combinedX>
driver: <module-combine-sink.c>
flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 1000
volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 0.00 ms
max request: 7 KiB
max rewind: 0 KiB
monitor source: 5
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
configured latency: 0.00 ms; range is 0.50 .. 200.00 ms
module: 29
properties:
device.class = "filter"
combine.slaves = "bluez_sink.70_26_05_89_B1_2F.a2dp_sink"
device.description = "myCombineX"
device.icon_name = "audio-card"
编辑：正如评论中所述，我添加了一个仅包含蓝牙耳机的组合接收器。我用 Paplay 播放了一首曲目，然后将该源的 pacmd list-sinks 的输出与常规蓝牙接收器的输出进行了比较。下面我仅显示更改行的输出：
使用蓝牙
* index: 2
name: <bluez_sink.70_26_05_89_B1_2F.a2dp_sink>
driver: <module-bluez5-device.c>
current latency: 63.37 ms
index: 3
name: <combinedX>
driver: <module-combine-sink.c>
state: SUSPENDED
suspend cause: IDLE
max request: 7 KiB
used by: 0
linked by: 0
configured latency: 0.00 ms; range is 0.50 .. 200.00 ms
使用组合水槽
* index: 2
name: <bluez_sink.70_26_05_89_B1_2F.a2dp_sink>
driver: <module-bluez5-device.c>
current latency: 63.88 ms
index: 3
name: <combinedX>
driver: <module-combine-sink.c>
state: RUNNING
suspend cause:
max request: 3 KiB
used by: 1
linked by: 1
configured latency: 45.32 ms; range is 45.32 .. 45.32 ms