USBオーディオカードがマシンに接続されており、「ラインイン」から録音しようとしていますが、alsa(以下を参照)のキャプチャデバイスとして設定しているにもかかわらず、jackdが再生デバイスとして認識しているようですキャプチャとしてこの「ラインイン」にジャックを取得する方法。以下に示すように、ジャックにはカードの2つのマイク入力に相当する2つのキャプチャデバイスのみが表示されます。 「ラインイン」を含む3つのキャプチャが表示されると予想していました
#amixer -c1
Simple mixer control 'Speaker',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right - Rear Left - Rear Right - Front Center - Woofer - Side Left - Side Right
Limits: Playback 0 - 197
Mono:
Front Left: Playback 65 [33%] [-24.75dB] [on]
Front Right: Playback 65 [33%] [-24.75dB] [on]
Rear Left: Playback 90 [46%] [-20.06dB] [on]
Rear Right: Playback 90 [46%] [-20.06dB] [on]
Front Center: Playback 90 [46%] [-20.06dB] [on]
Woofer: Playback 90 [46%] [-20.06dB] [on]
Side Left: Playback 90 [46%] [-20.06dB] [on]
Side Right: Playback 90 [46%] [-20.06dB] [on]
Simple mixer control 'PCM',0
Capabilities: cvolume cswitch cswitch-joined
Capture channels: Front Left - Front Right
Limits: Capture 0 - 6928
Front Left: Capture 4161 [60%] [0.25dB] [on]
Front Right: Capture 4096 [59%] [-0.01dB] [on]
Simple mixer control 'PCM Capture Source',0
Capabilities: enum
Items: 'Mic' 'Line' 'IEC958 In' 'Mixer'
Item0: 'Mic'
Simple mixer control 'Line',0
Capabilities: pvolume cvolume pswitch pswitch-joined cswitch cswitch-joined
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 8065 Capture 0 - 6928
Front Left: Playback 6204 [77%] [0.23dB] [off] Capture 4547 [66%] [1.76dB] [on]
Front Right: Playback 6071 [75%] [-0.29dB] [off] Capture 4215 [61%] [0.46dB] [on]
Simple mixer control 'Mic',0
Capabilities: pvolume cvolume pswitch pswitch-joined cswitch cswitch-joined
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 8065 Capture 0 - 6928
Front Left: Playback 6144 [76%] [-0.01dB] [off] Capture 4096 [59%] [-0.01dB] [on]
Front Right: Playback 6144 [76%] [-0.01dB] [off] Capture 4096 [59%] [-0.01dB] [on]
Simple mixer control 'IEC958 In',0
Capabilities: cswitch cswitch-joined
Capture channels: Mono
Mono: Capture [off]
#aplay -L
default:CARD=Device
USB Sound Device, USB Audio
Default Audio Device
sysdefault:CARD=Device
USB Sound Device, USB Audio
Default Audio Device
front:CARD=Device,DEV=0
USB Sound Device, USB Audio
Front speakers
surround21:CARD=Device,DEV=0
USB Sound Device, USB Audio
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=Device,DEV=0
USB Sound Device, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=Device,DEV=0
USB Sound Device, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Device,DEV=0
USB Sound Device, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Device,DEV=0
USB Sound Device, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Device,DEV=0
USB Sound Device, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Device,DEV=0
USB Sound Device, USB Audio
IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=Device,DEV=0
USB Sound Device, USB Audio
Direct sample mixing device
dsnoop:CARD=Device,DEV=0
USB Sound Device, USB Audio
Direct sample snooping device
hw:CARD=Device,DEV=0
USB Sound Device, USB Audio
Direct hardware device without any conversions
plughw:CARD=Device,DEV=0
USB Sound Device, USB Audio
Hardware device with all software conversions
#jack_lsp
system:capture_1
system:capture_2
system:playback_1
system:playback_2
system:playback_3
system:playback_4
system:playback_5
system:playback_6
system:playback_7
system:playback_8
このカードには、単一のステレオキャプチャデバイスがあります。
このミキサーコントロールは、このデバイスを介して現在キャプチャされているものを選択します。
Simple mixer control 'PCM Capture Source',0
Capabilities: enum
Items: 'Mic' 'Line' 'IEC958 In' 'Mixer'
Item0: 'Mic'