我正在尝试在 Ubuntu 20.04 上使用 tbone SC 420 USB 麦克风，但无法录制任何内容。麦克风出现在声音设置中，但从未拾取任何噪音。
这是它的条目proc：
$ cat /proc/asound/cards
0 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0x2ffb028000 irq 168
1 [MICROPHONE ]: USB-Audio - USB MICROPHONE
USB MICROPHONE USB MICROPHONE at usb-0000:00:14.0-2.1, full speed
并且我认为内核模块没有问题（其他麦克风似乎也不错）：
$ lsmod |grep snd
snd_hda_codec_hdmi 61440 1
snd_hda_codec_realtek 122880 1
snd_hda_codec_generic 81920 1 snd_hda_codec_realtek
snd_usb_audio 262144 3
snd_usbmidi_lib 36864 1 snd_usb_audio
snd_hda_intel 53248 3
snd_intel_dspcfg 24576 1 snd_hda_intel
snd_hda_codec 131072 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_core 90112 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hwdep 20480 2 snd_usb_audio,snd_hda_codec
snd_pcm 106496 6 snd_hda_codec_hdmi,snd_hda_intel,snd_usb_audio,snd_hda_codec,snd_hda_core
ledtrig_audio 16384 3 snd_hda_codec_generic,snd_hda_codec_realtek,thinkpad_acpi
snd_seq_midi 20480 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 36864 2 snd_seq_midi,snd_usbmidi_lib
snd_seq 69632 2 snd_seq_midi,snd_seq_midi_event
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
snd_timer 36864 2 snd_seq,snd_pcm
snd 90112 25 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_usb_audio,snd_usbmidi_lib,snd_hda_codec,snd_hda_codec_realtek,snd_timer,thinkpad_acpi,snd_pcm,snd_rawmidi
mc 53248 5 videodev,snd_usb_audio,videobuf2_v4l2,uvcvideo,videobuf2_common
但该设备似乎没有出现在lsusb：
$ lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 05e3:0616 Genesys Logic, Inc. hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 5986:2115 Acer, Inc Integrated Camera
Bus 001 Device 010: ID 24f0:0137
Bus 001 Device 005: ID 3212:1a03
Bus 001 Device 003: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 002: ID 062a:0000 MosArt Semiconductor Corp. Optical mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
其中有一些错误dmesg看起来很可疑：
$ dmesg | grep error | less
[ 3.983808] EXT4-fs (nvme0n1p2): re-mounted. Opts: errors=remount-ro
[ 4.597568] usb 1-2.3.2: device descriptor read/64, error -32
[ 955.731572] usb 1-2.3: clear tt 1 (9092) error -71
[ 955.731647] usb 1-2.3: clear tt 1 (9092) error -71
# Lots more error -71
但我不太清楚这两者是否相关。
有任何想法吗？