经过大量搜索却没有找到任何有用的信息后，我来到这里向比我更聪明的人寻求帮助。
我需要同时录制 2 个音频源。一个来自计算机背面的 Line In，另一个来自前面的麦克风。这样做的原因是，一个是扬声器的声音输出，另一个来自翻译服务。但是，根据命令，这两个设备使用相同的“源” pactl list。以下是输出：
Source #2
State: IDLE
Name: alsa_input.pci-0000_00_1b.0.analog-stereo
Description: Built-in Audio Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Owner Module: 5
Mute: no
Volume: 0: 56% 1: 56%
0: -15,30 dB 1: -15,30 dB
balance 0,00
Base Volume: 9%
-63,00 dB
Monitor of Sink: n/a
Latency: 70035 usec, configured 371519 usec
Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
Properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC662 rev1 Analog"
alsa.id = "ALC662 rev1 Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xfe420000 irq 47"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.name = "6 Series/C200 Series Chipset Family High Definition Audio Controller"
device.form_factor = "internal"
device.string = "front:0"
device.buffering.buffer_size = "65536"
device.buffering.fragment_size = "32768"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Built-in Audio Analog Stereo"
alsa.mixer_name = "Intel CougarPoint HDMI"
alsa.components = "HDA:10ec0662,103c1497,00100101 HDA:80862805,80861497,00100000"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
Ports:
analog-input-microphone: Microphone (priority: 8700, available)
analog-input-linein: Line In (priority: 8100, available)
Active Port: analog-input-microphone
Formats:
pcm
在录音软件（名为 Galicaster）中，你可以创建包含需要捕获的源位置的配置文件，如下所示：
[track3]
amplification = 1
name = Line In
vumeter = True
location = alsa_input.pci-0000_00_1b.0.analog-stereo
file = sound.mp3
device = pulse
path = /home/capture/Repository/attach
flavor = presenter
active = True
基本上，我需要知道如何指定每个轨道需要使用的端口，例如：
track3 需要使用analog-input-microphoneSource2 的端口，track4（第二条音轨）需要使用analog-input-linein
有人知道我该如何指定吗？我尝试使用简单的附加功能，例如location = alsa_input.pci-0000_00_1b.0.analog-stereo.analog-input-microphone或location = alsa_input.pci-0000_00_1b.0.analog-stereo:analog-input-microphone，但没有任何效果。录音软件启动时出现错误。
有没有办法实现这一点？如果有，怎么做？