谢谢如何在 Ubuntu 18.04 中设置默认音频输出设备？但我不知道如何设置默认输入
答案1
谢谢如何在 Ubuntu 18.04 中设置默认音频输出设备？用于输出位，但我也有几个输入设备，想分享解决方案：
pactl list short
将返回设备列表，查找您想要的输入设备。 在我的情况下，我正在寻找一个 yeti 麦克风
0 module-device-restore
1 module-stream-restore
2 module-card-restore
3 module-augment-properties
4 module-switch-on-port-available
5 module-switch-on-connect
6 module-udev-detect
7 module-bluetooth-policy
8 module-bluetooth-discover
9 module-bluez5-discover
10 module-native-protocol-unix
11 module-default-device-restore
12 module-always-sink
14 module-intended-roles
15 module-suspend-on-idle
16 module-console-kit
17 module-systemd-login
18 module-position-event-sounds
19 module-role-cork
20 module-snap-policy
21 module-filter-heuristics
22 module-filter-apply
23 module-alsa-card device_id="2" name="pci-0000_0c_00.3" card_name="alsa_card.pci-0000_0c_00.3" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1"
24 module-alsa-card device_id="1" name="usb-Blue_Microphones_Yeti_Stereo_Microphone_797_2018_12_05_58600-00" card_name="alsa_card.usb-Blue_Microphones_Yeti_Stereo_Microphone_797_2018_12_05_58600-00" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1"
25 module-alsa-card device_id="0" name="pci-0000_0a_00.1" card_name="alsa_card.pci-0000_0a_00.1" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1"
26 module-alsa-card device_id="3" name="usb-046d_0821_BECDCE90-00" card_name="alsa_card.usb-046d_0821_BECDCE90-00" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1"
27 module-x11-publish display=:1 xauthority=/run/user/1000/gdm/Xauthority
28 module-x11-cork-request display=:1 xauthority=/run/user/1000/gdm/Xauthority
29 module-x11-xsmp display=:1 xauthority=/run/user/1000/gdm/Xauthority session_manager=local/steev-desktop:@/tmp/.ICE-unix/2648,unix/steev-desktop:/tmp/.ICE-unix/2648
1 alsa_output.pci-0000_0c_00.3.analog-stereo module-alsa-card.c s16le 2ch 44100Hz SUSPENDED
2 alsa_output.usb-Blue_Microphones_Yeti_Stereo_Microphone_797_2018_12_05_58600-00.analog-stereo module-alsa-card.c s16le 2ch 44100Hz SUSPENDED
5 alsa_output.pci-0000_0a_00.1.hdmi-stereo-extra1 module-alsa-card.c s16le 2ch 44100Hz SUSPENDED
1 alsa_output.pci-0000_0c_00.3.analog-stereo.monitor module-alsa-card.c s16le 2ch 44100Hz SUSPENDED
2 alsa_output.usb-Blue_Microphones_Yeti_Stereo_Microphone_797_2018_12_05_58600-00.analog-stereo.monitor module-alsa-card.c s16le 2ch 44100Hz SUSPENDED
3 alsa_input.usb-Blue_Microphones_Yeti_Stereo_Microphone_797_2018_12_05_58600-00.analog-stereo module-alsa-card.c s16le 2ch 44100Hz SUSPENDED
4 alsa_input.usb-046d_0821_BECDCE90-00.analog-stereo module-alsa-card.c s16le 2ch 32000Hz SUSPENDED
7 alsa_output.pci-0000_0a_00.1.hdmi-stereo-extra1.monitor module-alsa-card.c s16le 2ch 44100Hz SUSPENDED
0 module-systemd-login.c (null)
4 module-x11-xsmp.c (null)
5 protocol-native.c gnome-shell
8 protocol-native.c gsd-media-keys
11 protocol-native.c spotify
12 protocol-native.c chrome
16 protocol-native.c python3.8
17 protocol-native.c pactl
0 alsa_card.pci-0000_0c_00.3 module-alsa-card.c
1 alsa_card.usb-Blue_Microphones_Yeti_Stereo_Microphone_797_2018_12_05_58600-00 module-alsa-card.c
2 alsa_card.pci-0000_0a_00.1 module-alsa-card.c
3 alsa_card.usb-046d_0821_BECDCE90-00 module-alsa-card.c
在列表中我可以找到我正在寻找的麦克风：
alsa_input.usb-Blue_Microphones_Yeti_Stereo_Microphone_797_2018_12_05_58600-00.analog-stereo
我可以将其设置为默认设备：
pactl set-default-source alsa_input.usb-Blue_Microphones_Yeti_Stereo_Microphone_797_2018_12_05_58600-00.analog-stereo
如果你将该命令行添加到启动应用程序中，那么你就应该成功了