这是我的第一个问题,我不确定该问题要包括哪些数据。请问我是否需要我提供更多信息。
我最近得到了Focusrite Scarlett 18i8音频接口。到目前为止,它在我的DAW中确实非常有效(使用ALSA和手动通道分配),但还有一个烦人的事情:Pulseaudio将设备识别为7.1输出,但18i8具有4个立体声输出!因此,VLC(和其他应用程序)正在以7.1模式而不是立体声播放电影。
我在Google上搜索了一下,看到了有关Pulseaudio卡配置文件以及pactl和pacmd命令的一些信息。那就是为什么我尝试:
pactl set-card-profile 3 output:analog-stereo
但它返回(由我翻译):
Failure: no such entity
看看
pacmd list-cards
告诉原因:
4 card(s) available.
...
index: 3
name: <alsa_card.usb-Focusrite_Scarlett_18i8_USB_1000657A-00-USB>
driver: <module-alsa-card.c>
owner module: 8
properties:
alsa.card = "3"
alsa.card_name = "Scarlett 18i8 USB"
alsa.long_card_name = "Focusrite Scarlett 18i8 USB at usb-0000:00:1d.0-1.2, high speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:1d.0-usb-0:1.2:1.0"
sysfs.path = "/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/sound/card3"
udev.id = "usb-Focusrite_Scarlett_18i8_USB_1000657A-00-USB"
device.bus = "usb"
device.vendor.id = "1235"
device.vendor.name = "Novation EMS"
device.product.id = "8014"
device.product.name = "Scarlett 18i8 USB"
device.serial = "Focusrite_Scarlett_18i8_USB_1000657A"
device.string = "3"
device.description = "Scarlett 18i8 USB"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-usb"
profiles:
output:analog-surround-71: Analog Surround 7.1 Ausgang (priority 700, available: unknown)
off: Aus (priority 0, available: unknown)
active profile: <output:analog-surround-71>
sinks:
alsa_output.usb-Focusrite_Scarlett_18i8_USB_1000657A-00-USB.analog-surround-71/#2: Scarlett 18i8 USB Analog Surround 7.1
sources:
alsa_output.usb-Focusrite_Scarlett_18i8_USB_1000657A-00-USB.analog-surround-71.monitor/#4: Monitor of Scarlett 18i8 USB Analog Surround 7.1
ports:
analog-output: Analoge Ausgabe (priority 9900, latency offset 0 usec, available: unknown)
properties:
该设备可用的唯一配置文件是Analog-surround-71,但aplay列出了所有模式:
user@userbuntu:~$ aplay -L
...
sysdefault:CARD=USB
Scarlett 18i8 USB, USB Audio
Default Audio Device
front:CARD=USB,DEV=0
Scarlett 18i8 USB, USB Audio
Front speakers
surround40:CARD=USB,DEV=0
Scarlett 18i8 USB, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=USB,DEV=0
Scarlett 18i8 USB, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=USB,DEV=0
Scarlett 18i8 USB, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=USB,DEV=0
Scarlett 18i8 USB, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=USB,DEV=0
Scarlett 18i8 USB, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=USB,DEV=0
Scarlett 18i8 USB, USB Audio
IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=USB,DEV=0
Scarlett 18i8 USB, USB Audio
Direct sample mixing device
dsnoop:CARD=USB,DEV=0
Scarlett 18i8 USB, USB Audio
Direct sample snooping device
hw:CARD=USB,DEV=0
Scarlett 18i8 USB, USB Audio
Direct hardware device without any conversions
plughw:CARD=USB,DEV=0
Scarlett 18i8 USB, USB Audio
Hardware device with all software conversions
所以这是我的问题:
是否可以手动添加Pulseaudio配置文件,或者我需要在ALSA中更深入地更改任何内容?如果是这样,有人可以告诉我如何吗?
提前致谢!