Pulseaudio為A2DP和HFP連接設置接收器和信號源

Question

我正在嘗試在嵌入式板上設置A2DP + HFP配置文件。 目標是使用Pulseaudio 12.2，ofono 1.18和bluez 5.41，以便連接到手機並在需要時自動使用A2DP，HFP配置文件。 我做了很多事情來更新版本和配置守護程序。 現在，我可以看到連接時HFP配置文件可用。

A2DP完美運行，我能夠將音樂從手機流式傳輸到嵌入式板。 接到電話后，可以通過藍牙接聽電話，並且在通話過程中，HFP似乎處於活動狀態。 奇怪的是，嵌入式板（連接了HDMI監視器）沒有音頻。

以下內容將為您提供外觀。 當我通過A2DP從電話流式傳輸音樂時，會收到以下來源和接收器：

pactl list short sinks
0   alsa_output.hw_1_0  module-alsa-sink.c  s16le 2ch 48000Hz   SUSPENDED
1   alsa_output.platform-sound.analog-mono  module-alsa-card.c  s16le 1ch 48000Hz   SUSPENDED
2   alsa_output.platform-sound-hdmi.stereo-fallback module-alsa-card.c  s16le 2ch 48000Hz   RUNNING

pactl list short sources
0   alsa_output.hw_1_0.monitor  module-alsa-sink.c  s16le 2ch 48000Hz   SUSPENDED
1   alsa_output.platform-sound.analog-mono.monitor  module-alsa-card.c  s16le 1ch 48000Hz   SUSPENDED
2   alsa_input.platform-sound.analog-mono   module-alsa-card.c  s16le 1ch 48000Hz   SUSPENDED
3   alsa_output.platform-sound-hdmi.stereo-fallback.monitor module-alsa-card.c  s16le 2ch 48000Hz   IDLE
5   bluez_source.D8_5B_2A_5B_7B_E6.a2dp_source  module-bluez5-device.c  s16le 2ch 44100Hz   RUNNING

每當我通話時（使用HFP），我都會收到以下消息來源和接收者：

pactl list short sources
0   alsa_output.hw_1_0.monitor  module-alsa-sink.c  s16le 2ch 48000Hz   SUSPENDED
1   alsa_output.platform-sound.analog-mono.monitor  module-alsa-card.c  s16le 1ch 48000Hz   SUSPENDED
2   alsa_input.platform-sound.analog-mono   module-alsa-card.c  s16le 1ch 48000Hz   SUSPENDED
3   alsa_output.platform-sound-hdmi.stereo-fallback.monitor module-alsa-card.c  s16le 2ch 48000Hz   SUSPENDED
7   bluez_sink.D8_5B_2A_5B_7B_E6.headset_audio_gateway.monitor  module-bluez5-device.c  s16le 1ch 8000Hz    IDLE
8   bluez_source.D8_5B_2A_5B_7B_E6.headset_audio_gateway    module-bluez5-device.c  s16le 1ch 8000Hz    RUNNING

pactl list short sinks  
0   alsa_output.hw_1_0  module-alsa-sink.c  s16le 2ch 48000Hz   SUSPENDED
1   alsa_output.platform-sound.analog-mono  module-alsa-card.c  s16le 1ch 48000Hz   SUSPENDED
2   alsa_output.platform-sound-hdmi.stereo-fallback module-alsa-card.c  s16le 2ch 48000Hz   SUSPENDED
3   bluez_sink.D8_5B_2A_5B_7B_E6.headset_audio_gateway  module-bluez5-device.c  s16le 1ch 8000Hz    RUNNING

這很奇怪，因為只要我在通話中，接收器就會從我的HDMI監視器變為藍牙設備本身。 請在下面找到我的/etc/pulse/default.pa ：

.fail

### Automatically restore the volume of streams and devices
load-module module-device-restore
load-module module-stream-restore
load-module module-card-restore

### Automatically augment property information from .desktop files
### stored in /usr/share/application
load-module module-augment-properties

### Should be after module-*-restore but before module-*-detect
load-module module-switch-on-port-available

### Load audio drivers statically
### (it's probably better to not load these drivers manually, but instead
### use module-udev-detect -- see below -- for doing this automatically)
load-module module-alsa-sink device=hw:1,0
#load-module module-alsa-source 
#load-module module-oss device="/dev/dsp" sink_name=output source_name=input
#load-module module-oss-mmap device="/dev/dsp" sink_name=output source_name=input
#load-module module-null-sink
#load-module module-pipe-sink

### Automatically load driver modules depending on the hardware available
.ifexists module-udev-detect.so
load-module module-udev-detect
.else
### Use the static hardware detection module (for systems that lack udev support)
load-module module-detect
.endif

### Automatically connect sink and source if JACK server is present
.ifexists module-jackdbus-detect.so
.nofail
load-module module-jackdbus-detect channels=2
.fail
.endif

### Automatically load driver modules for Bluetooth hardware
.ifexists module-bluetooth-policy.so
load-module module-bluetooth-policy ag=true auto_switch=2
.endif

.ifexists module-bluetooth-discover.so
load-module module-bluetooth-discover headset=auto
.endif

### Load several protocols
.ifexists module-esound-protocol-unix.so
load-module module-esound-protocol-unix
.endif
load-module module-native-protocol-unix auth-anonymous=1

### Network access (may be configured with paprefs, so leave this commented
### here if you plan to use paprefs)
#load-module module-esound-protocol-tcp
#load-module module-native-protocol-tcp
#load-module module-zeroconf-publish

### Load the RTP receiver module (also configured via paprefs, see above)
#load-module module-rtp-recv

### Load the RTP sender module (also configured via paprefs, see above)
#load-module module-null-sink sink_name=rtp format=s16be channels=2 rate=44100 sink_properties="device.description='RTP Multicast Sink'"
#load-module module-rtp-send source=rtp.monitor


### Load additional modules from GConf settings. This can be configured with the paprefs tool.
### Please keep in mind that the modules configured by paprefs might conflict with manually
### loaded modules.
.ifexists module-gconf.so
.nofail
load-module module-gconf
.fail
.endif

### Automatically restore the default sink/source when changed by the user
### during runtime
### NOTE: This should be loaded as early as possible so that subsequent modules
### that look up the default sink/source get the right value
load-module module-default-device-restore

### Automatically move streams to the default sink if the sink they are
### connected to dies, similar for sources
load-module module-rescue-streams

### Make sure we always have a sink around, even if it is a null sink.
load-module module-always-sink

### Honour intended role device property
load-module module-intended-roles

### Automatically suspend sinks/sources that become idle for too long
load-module module-suspend-on-idle

### If autoexit on idle is enabled we want to make sure we only quit
### when no local session needs us anymore.
.ifexists module-console-kit.so
load-module module-console-kit
.endif
.ifexists module-systemd-login.so
load-module module-systemd-login
.endif

### Enable positioned event sounds
load-module module-position-event-sounds

### Cork music/video streams when a phone stream is active
load-module module-role-cork

### Modules to allow autoloading of filters (such as echo cancellation)
### on demand. module-filter-heuristics tries to determine what filters
### make sense, and module-filter-apply does the heavy-lifting of
### loading modules and rerouting streams.
load-module module-filter-heuristics
load-module module-filter-apply

load-module module-switch-on-connect

### Make some devices default
# Make HDMI default
set-default-sink 0
#set-default-source input

以下是我的.asoundrc ALSA配置（默認情況下為HDMI設備）：

pcm.!default {
    type hw
    card 1
    device 0
}

非常感謝任何幫助。 提前致謝。

Answer 1

試試（在接通電話之前）

pactl set-default-sink alsa_output.platform-sound-hdmi.stereo-fallback
pactl set-default-source alsa_output.platform-sound.analog-mono.monitor

如果問題仍未解決，請分享您從中獲得的收益

pacmd list-sinks
pacmd list-sources
pacmd list-sink-inputs
pacmd list-source-outputs