USB経由でGentoo Linuxに接続されているタブレットマイクを使用して音を録音することはできません。
設定を確認したところ、USBマイクが検出されました。
arecord --list-devices
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: AD198x Analog [AD198x Analog]
Subdevices: 0/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
card 1: Device [PrimeSense Device], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: Phone [MT65xx Android Phone], device 0: USB Audio [USB Audio]
Subdevices: 0/1
Subdevice #0: subdevice #0
だから私は推測する
arecord -D hw:2,0 -d 5 test.wav
私に録音を提供しますが、結果は次のとおりです。
arecord: main:722: audio open error: Device or resource busy
この問題の原因を見つける方法を知っていますか？それとも私が間違った方法で行っているのでしょうか？ asound.confに特別なエントリを追加する必要がありますか？
現在は次のとおりです。
cat /etc/asound.conf
#input device
pcm.AD1989A_inputs {
type multi
slaves.a.pcm "hw:PCH,0,0"
slaves.a.channels 2
slaves.b.pcm "hw:PCH,0,1"
slaves.b.channels 2
bindings.0.slave a
bindings.0.channel 0
bindings.1.slave a
bindings.1.channel 1
bindings.2.slave b
bindings.2.channel 0
bindings.3.slave b
bindings.3.channel 1
}
おそらくpcmリストも解決策に関連しているかもしれません。だからここに追加します。
arecord --list-pcms
sysdefault:CARD=PCH
HDA Intel PCH, AD198x Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, AD198x Analog
Front speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, AD198x Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, AD198x Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, AD198x Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, AD198x Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, AD198x Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
sysdefault:CARD=Device
PrimeSense Device, USB Audio
Default Audio Device
front:CARD=Device,DEV=0
PrimeSense Device, USB Audio
Front speakers
surround40:CARD=Device,DEV=0
PrimeSense Device, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=Device,DEV=0
PrimeSense Device, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Device,DEV=0
PrimeSense Device, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Device,DEV=0
PrimeSense Device, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Device,DEV=0
PrimeSense Device, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Device,DEV=0
PrimeSense Device, USB Audio
IEC958 (S/PDIF) Digital Audio Output
sysdefault:CARD=Phone
MT65xx Android Phone, USB Audio
Default Audio Device
front:CARD=Phone,DEV=0
MT65xx Android Phone, USB Audio
Front speakers
surround40:CARD=Phone,DEV=0
MT65xx Android Phone, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=Phone,DEV=0
MT65xx Android Phone, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Phone,DEV=0
MT65xx Android Phone, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Phone,DEV=0
MT65xx Android Phone, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Phone,DEV=0
MT65xx Android Phone, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Phone,DEV=0
MT65xx Android Phone, USB Audio
IEC958 (S/PDIF) Digital Audio Output