ALSA 및 Pulseaudio를 사용하여 여러 입력 장치의 오디오를 녹음하고 싶습니다. 더 정확하게는 UltraStar Deluxe를 플레이하고 싶습니다. SDL을 이용한 게임입니다. 내가 알 수 있는 한, ALSA만 지원합니다. 출력과 입력에 가상 ALSA "펄스" 장치를 사용하기만 하면 모든 것이 잘 작동합니다. 아쉽게도 입력 장치는 하나만 허용되는데 세 개의 독립(USB) 마이크에서 녹음하고 싶습니다. 세 가지 소스를 하나로 다운믹스하는 것은 옵션이 아닙니다.
https://wiki.archlinux.de/title/Pulseaudio#Mehrere_PulseAudio_ALSA_Ger.C3.A4te다음을 추가하여 추가 ALSA PCM을 정의할 것을 제안합니다.
pcm.<pcmname> {
type pulse
device <devicename>
}
나에게 ~/.asoundrc. 안타깝게도 pulseaudio 장치 이름에 무엇을 사용해야 할지 알 수 없습니다. 나는 pulseaudio라는 이름으로 추측해 보았습니다 alsa_card.usb-0d8c_C-Media_USB_Audio_Device-00-Device. arecord -L추가 가상 ALSA PCM을 표시하지만 오류 메시지를 표시하는 기록에 실패합니다 ALSA lib pcm_pulse.c:752:(pulse_prepare) PulseAudio: Unable to create stream: Entität nicht vorhanden(마지막 독일어 비트는 다음과 같은 내용으로 변환됨 Entity not existant). 가상 ALSA PCM은 UltraStar Deluxe에 표시되지 않습니다.
어떻게 이를 달성할 수 있나요? 전혀 가능합니까? 저는 다른 모든 작업에 Pulseaudio를 사용하는데 잘 작동합니다. Pulseaudio가 없으면 많은 프로그램과 함께 작업하는 것이 번거롭고 오디오가 불안정합니다.
출력은 다음과 같습니다 pacmd list-cards.
4 card(s) available.
index: 0
... (HDMI Output Device stripped)
index: 1
name: <alsa_card.pci-0000_00_1b.0>
driver: <module-alsa-card.c>
owner module: 6
properties:
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xf6130000 irq 48"
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.id = "1e20"
device.product.name = "7 Series/C210 Series Chipset Family High Definition Audio Controller"
device.form_factor = "internal"
device.string = "0"
device.description = "Internes Audio"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
profiles:
input:analog-stereo: Analog Stereo Eingang (priority 60, available: unknown)
output:analog-stereo: Analog Stereo Ausgang (priority 6000, available: unknown)
output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6060, available: unknown)
output:analog-surround-40: Analog Surround 4.0 Ausgang (priority 700, available: unknown)
output:analog-surround-40+input:analog-stereo: Analog Surround 4.0 Ausgang + Analog Stereo Eingang (priority 760, available: unknown)
output:analog-surround-41: Analog Surround 4.1 Ausgang (priority 800, available: unknown)
output:analog-surround-41+input:analog-stereo: Analog Surround 4.1 Ausgang + Analog Stereo Eingang (priority 860, available: unknown)
output:analog-surround-50: Analog Surround 5.0 Ausgang (priority 700, available: unknown)
output:analog-surround-50+input:analog-stereo: Analog Surround 5.0 Ausgang + Analog Stereo Eingang (priority 760, available: unknown)
output:analog-surround-51: Analog Surround 5.1 Ausgang (priority 800, available: unknown)
output:analog-surround-51+input:analog-stereo: Analog Surround 5.1 Ausgang + Analog Stereo Eingang (priority 860, available: unknown)
output:iec958-stereo: Digital Stereo (IEC958) Ausgang (priority 5500, available: unknown)
output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Ausgang + Analog Stereo Eingang (priority 5560, available: unknown)
off: Aus (priority 0, available: unknown)
active profile: <output:analog-stereo>
sinks:
alsa_output.pci-0000_00_1b.0.analog-stereo/#0: Internes Audio Analog Stereo
sources:
alsa_output.pci-0000_00_1b.0.analog-stereo.monitor/#0: Monitor of Internes Audio Analog Stereo
ports:
analog-input: Analoge Eingabe (priority 10000, latency offset 0 usec, available: unknown)
properties:
analog-input-microphone: Mikrofon (priority 8700, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-input-microphone"
analog-input-linein: Line In (priority 8100, latency offset 0 usec, available: no)
properties:
analog-output: Analoge Ausgabe (priority 9900, latency offset 0 usec, available: unknown)
properties:
iec958-stereo-output: Digitaler Ausgang (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
properties:
index: 2
name: <alsa_card.usb-0d8c_C-Media_USB_Audio_Device-00-Device>
driver: <module-alsa-card.c>
owner module: 7
properties:
alsa.card = "1"
alsa.card_name = "C-Media USB Audio Device"
alsa.long_card_name = "C-Media USB Audio Device at usb-0000:00:1d.0-1.5, full speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:1d.0-usb-0:1.5:1.0"
sysfs.path = "/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.0/sound/card1"
udev.id = "usb-0d8c_C-Media_USB_Audio_Device-00-Device"
device.bus = "usb"
device.vendor.id = "0d8c"
device.vendor.name = "C-Media Electronics, Inc."
device.product.id = "0008"
device.product.name = "C-Media USB Audio Device "
device.serial = "0d8c_C-Media_USB_Audio_Device"
device.string = "1"
device.description = "C-Media USB Audio Device "
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-usb"
profiles:
input:analog-mono: Analog Mono Eingang (priority 1, available: unknown)
output:analog-stereo: Analog Stereo Ausgang (priority 6000, available: unknown)
output:analog-stereo+input:analog-mono: Analog Stereo Ausgang + Analog Mono Eingang (priority 6001, available: unknown)
output:iec958-stereo: Digital Stereo (IEC958) Ausgang (priority 5500, available: unknown)
output:iec958-stereo+input:analog-mono: Digital Stereo (IEC958) Ausgang + Analog Mono Eingang (priority 5501, available: unknown)
off: Aus (priority 0, available: unknown)
active profile: <input:analog-mono>
sources:
alsa_input.usb-0d8c_C-Media_USB_Audio_Device-00-Device.analog-mono/#1: C-Media USB Audio Device Analog Mono
ports:
analog-input-microphone: Mikrofon (priority 8700, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-input-microphone"
analog-output: Analoge Ausgabe (priority 9900, latency offset 0 usec, available: unknown)
properties:
iec958-stereo-output: Digitaler Ausgang (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
properties:
index: 3
name: <alsa_card.usb-0d8c_C-Media_USB_Audio_Device-00-Device_1>
driver: <module-alsa-card.c>
owner module: 8
properties:
alsa.card = "2"
alsa.card_name = "C-Media USB Audio Device"
alsa.long_card_name = "C-Media USB Audio Device at usb-0000:00:1d.0-1.6, full speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:1d.0-usb-0:1.6:1.0"
sysfs.path = "/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.6/2-1.6:1.0/sound/card2"
udev.id = "usb-0d8c_C-Media_USB_Audio_Device-00-Device_1"
device.bus = "usb"
device.vendor.id = "0d8c"
device.vendor.name = "C-Media Electronics, Inc."
device.product.id = "0008"
device.product.name = "C-Media USB Audio Device "
device.serial = "0d8c_C-Media_USB_Audio_Device"
device.string = "2"
device.description = "C-Media USB Audio Device "
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-usb"
profiles:
input:analog-mono: Analog Mono Eingang (priority 1, available: unknown)
output:analog-stereo: Analog Stereo Ausgang (priority 6000, available: unknown)
output:analog-stereo+input:analog-mono: Analog Stereo Ausgang + Analog Mono Eingang (priority 6001, available: unknown)
output:iec958-stereo: Digital Stereo (IEC958) Ausgang (priority 5500, available: unknown)
output:iec958-stereo+input:analog-mono: Digital Stereo (IEC958) Ausgang + Analog Mono Eingang (priority 5501, available: unknown)
off: Aus (priority 0, available: unknown)
active profile: <input:analog-mono>
sources:
alsa_input.usb-0d8c_C-Media_USB_Audio_Device-00-Device_1.analog-mono/#2: C-Media USB Audio Device Analog Mono
ports:
analog-input-microphone: Mikrofon (priority 8700, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-input-microphone"
analog-output: Analoge Ausgabe (priority 9900, latency offset 0 usec, available: unknown)
properties:
iec958-stereo-output: Digitaler Ausgang (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
properties:
문안 인사
헤르만
답변1
나는 그것을 스스로 알아 냈습니다. "device" 옵션에 장치 이름이 필요하다고 생각한 것은 잘못된 생각이었습니다. 대신, 소스(또는 획득하려는 항목에 따라 싱크) 이름이 필요합니다. 예를 들어 이것은 pulseaudio가 처리하는 개별 마이크에 대한 ALSA 액세스를 제공합니다.
pcm.pulse_mic1 {
type pulse
device alsa_input.usb-0d8c_C-Media_USB_Audio_Device-00-Device.analog-mono
}
ctl.pulse_mic1 {
type pulse
device alsa_input.usb-0d8c_C-Media_USB_Audio_Device-00-Device.analog-mono
}