저는 AlmaLinux 9 설치에서 오디오를 실행하기 위해 USB 사운드 카드를 사용하고 있습니다. 더 이상 오디오가 들리지 않아 뭔가 변경한 것 같습니다(그러나 AlmaLinux는 사운드가 성공적으로 재생되었다고 생각합니다). 시작 시 GUI에서 텍스트 모드로 전환했지만 그것이 중요하다고 생각하지 않습니다. 어떻게 진행해야 할지 모르겠습니다... 누군가가 여기에서 문제를 확인하길 바랍니다.
예를 들어 다음 명령은 성공적으로 완료됩니다.
aplay /data/sounds/intruder_alert.wav
Playing WAVE '/data/sounds/intruder_alert.wav' : Signed 16 bit Little Endian, Rate 22050 Hz, Mono
부팅 시 USB 오디오 장치가 감지되는 것을 확인했습니다("input,hidraw1"이 단서인지 확실하지 않음).
[ 2.586749] hub 2-2:1.0: USB hub found
[ 2.589077] hub 2-2:1.0: 7 ports detected
[ 3.536316] usb 2-2.1: new full-speed USB device number 4 using uhci_hcd
[ 4.432226] usb 2-2.1: New USB device found, idVendor=08bb, idProduct=2902, bcdDevice= 1.00
[ 4.432236] usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 4.432243] usb 2-2.1: Product: USB Audio CODEC
[ 4.432248] usb 2-2.1: Manufacturer: Burr-Brown from TI
[ 4.524947] input: Burr-Brown from TI USB Audio CODEC as /devices/pci0000:00/0000:00:11.0/0000:02:00.0/usb2/2-2/2-2.1/2-2.1:1.3/0003:08BB:2902.0002/input/input6
[ 4.583437] hid-generic 0003:08BB:2902.0002: input,hidraw1: USB HID v1.00 Device [Burr-Brown from TI USB Audio CODEC ] on usb-0000:02:00.0-2.1/input3
사운드 관련 드라이버는 커널에 의해 로드됩니다.
lsmod | grep snd
snd_seq_dummy 16384 0
snd_hrtimer 16384 1
snd_usb_audio 385024 2
snd_usbmidi_lib 45056 1 snd_usb_audio
snd_hwdep 16384 1 snd_usb_audio
snd_seq 94208 7 snd_seq_dummy
snd_pcm 151552 1 snd_usb_audio
snd_timer 49152 3 snd_seq,snd_hrtimer,snd_pcm
snd_rawmidi 45056 1 snd_usbmidi_lib
snd_seq_device 16384 2 snd_seq,snd_rawmidi
snd 122880 14 snd_seq,snd_seq_device,snd_hwdep,snd_usb_audio,snd_usbmidi_lib,snd_timer,snd_pcm,snd_rawmidi
soundcore 16384 1 snd
mc 69632 1 snd_usb_audio
내가 파이프라인을 실행하고 있고 노드가
pw-cli ls Node
id 28, type PipeWire:Interface:Node/3
object.serial = "28"
factory.id = "10"
priority.driver = "20000"
node.name = "Dummy-Driver"
id 29, type PipeWire:Interface:Node/3
object.serial = "29"
factory.id = "10"
priority.driver = "19000"
node.name = "Freewheel-Driver"
id 31, type PipeWire:Interface:Node/3
object.serial = "1736"
object.path = "alsa:pcm:0:front:0:playback"
factory.id = "18"
client.id = "33"
device.id = "44"
priority.session = "1009"
priority.driver = "1009"
node.description = "PCM2902 Audio Codec Analog Stereo"
node.name = "alsa_output.usb-Burr-Brown_from_TI_USB_Audio_CODEC-00.analog-stereo-output"
node.nick = "USB Audio CODEC"
media.class = "Audio/Sink"
id 37, type PipeWire:Interface:Node/3
object.serial = "35"
factory.id = "10"
client.id = "33"
node.name = "Midi-Bridge"
media.class = "Midi/Bridge"
id 42, type PipeWire:Interface:Node/3
object.serial = "1737"
object.path = "alsa:pcm:0:hw:0:capture"
factory.id = "18"
client.id = "33"
device.id = "44"
priority.session = "2009"
priority.driver = "2009"
node.description = "PCM2902 Audio Codec Analog Stereo"
node.name = "alsa_input.usb-Burr-Brown_from_TI_USB_Audio_CODEC-00.analog-stereo-input"
node.nick = "USB Audio CODEC"
media.class = "Audio/Source"
또한 간단한 스피커 테스트도 시도했습니다.
speaker-test -c 2
speaker-test 1.2.8
Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 64 to 1048576
Period size range from 32 to 524288
Using max buffer size 1048576
Periods = 4
was set period_size = 262144
was set buffer_size = 1048576
0 - Front Left
1 - Front Right
Time per period = 11.005656
0 - Front Left
^C 1 - Front Right
Time per period = 5.263193
플레이 기기를 확인해 봤습니다
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: CODEC [USB Audio CODEC], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
sysdefault
Default Audio Device
oss
Open Sound System
pipewire
PipeWire Sound Server
default
Default ALSA Output (currently PipeWire Media Server)
sysdefault:CARD=CODEC
USB Audio CODEC, USB Audio
Default Audio Device
front:CARD=CODEC,DEV=0
USB Audio CODEC, USB Audio
Front output / input
surround21:CARD=CODEC,DEV=0
USB Audio CODEC, USB Audio
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=CODEC,DEV=0
USB Audio CODEC, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=CODEC,DEV=0
USB Audio CODEC, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=CODEC,DEV=0
USB Audio CODEC, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=CODEC,DEV=0
USB Audio CODEC, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=CODEC,DEV=0
USB Audio CODEC, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=CODEC,DEV=0
USB Audio CODEC, USB Audio
IEC958 (S/PDIF) Digital Audio Output
alsa 믹서는 볼륨이 켜져 있음을 나타냅니다.
amixer
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 65536
Mono:
Front Left: Playback 55864 [85%] [on]
Front Right: Playback 55864 [85%] [on]
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch cswitch-joined
Capture channels: Front Left - Front Right
Limits: Capture 0 - 65536
Front Left: Capture 26213 [40%] [on]
Front Right: Capture 26213 [40%] [on]
나는 이것을 전에 본 적이 없으며 그것을 진단하는 방법을 모릅니다. 그런데 스피커가 제대로 작동하는 것을 확인했습니다(오디오 케이블 연결부를 만지면 윙윙거리는 소리가 들립니다).