輸入設備監視器看什麼？

在揚聲器上播放音樂時，我打開 pavucontrol。

點擊input Devices,line in和front microphone,rear microphone都拔掉了, 那麼輸入設備監控什麼Monitor of Family 17h(Models 10h-1fh) HD Audio Controller Analog Stereo–看呢？它在看輸出設備– line out?

Card #1
   Name: alsa_card.pci-0000_09_00.6
   Driver: module-alsa-card.c
   Owner Module: 7
   Properties:
       alsa.card = "1"
       alsa.card_name = "HD-Audio Generic"
       alsa.long_card_name = "HD-Audio Generic at 0xfccc0000 irq 60"
       alsa.driver_name = "snd_hda_intel"
       device.bus_path = "pci-0000:09:00.6"
       sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:09:00.6/sound/card1"
       device.bus = "pci"
       device.vendor.id = "1022"
       device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
       device.product.id = "15e3"
       device.product.name = "Family 17h (Models 10h-1fh) HD Audio Controller"
       device.string = "1"
       device.description = "Family 17h (Models 10h-1fh) HD Audio Controller"
       module-udev-detect.discovered = "1"
       device.icon_name = "audio-card-pci"
   Profiles:
       input:analog-stereo: Analog Stereo Input (sinks: 0, sources: 1, priority: 65, available: no)
       output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6500, available: yes)
       output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (sinks: 1, sources: 1, priority: 6565, available: no)
       output:iec958-stereo: Digital Stereo (IEC958) Output (sinks: 1, sources: 0, priority: 5500, available: yes)
       output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5565, available: no)
       output:iec958-ac3-surround-51: Digital Surround 5.1 (IEC958/AC3) Output (sinks: 1, sources: 0, priority: 300, available: yes)
       output:iec958-ac3-surround-51+input:analog-stereo: Digital Surround 5.1 (IEC958/AC3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 365, available: no)
       off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
   Active Profile: output:analog-stereo+input:analog-stereo
   Ports:
       analog-input-front-mic: Front Microphone (priority: 8500, latency offset: 0 usec, not available)
           Properties:
               device.icon_name = "audio-input-microphone"
           Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:iec958-stereo+input:analog-stereo, output:iec958-ac3-surround-51+input:analog-stereo
       analog-input-rear-mic: Rear Microphone (priority: 8200, latency offset: 0 usec, not available)
           Properties:
               device.icon_name = "audio-input-microphone"
           Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:iec958-stereo+input:analog-stereo, output:iec958-ac3-surround-51+input:analog-stereo
       analog-input-linein: Line In (priority: 8100, latency offset: 0 usec, not available)
           Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:iec958-stereo+input:analog-stereo, output:iec958-ac3-surround-51+input:analog-stereo
       analog-output-lineout: Line Out (priority: 9000, latency offset: 0 usec, available)
           Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo
       analog-output-headphones: Headphones (priority: 9900, latency offset: 0 usec, not available)
           Properties:
               device.icon_name = "audio-headphones"
           Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo
       iec958-stereo-output: Digital Output (S/PDIF) (priority: 0, latency offset: 0 usec)
           Part of profile(s): output:iec958-stereo, output:iec958-stereo+input:analog-stereo

在 Pulseaudio 中，每個接收器（音頻目標，輸出）都有一個關聯的源（音頻源，輸入），稱為monitor。

出於某種原因，您的音頻硬體提供了一個名為“Family 17h（型號 10h-1fh）”的接收器。這是一個不尋常的名稱，可能只是因為您的硬體製造商在 BIOS 中添加了一些通用名稱而出現。

你沒有告訴我們你有什麼接收器，所以我假設這只是通用的“內置”接收器，如果你的硬體可以輸出到不同的埠，包括你顯示的“線路輸出”，可能還有其他埠。

因此，關聯的監聽源將鏡像您輸出到此接收器的任何音頻，無論接收器是否已啟動“線路輸出”或其他埠。

它與通用輸入源（您所說的具有 Line In、Front Mic 和 Rear Mic 埠）無關。

引用自：https://unix.stackexchange.com/questions/656078