Добрый день.
У меня похожая проблема. Тоже Lenovo, только не G50-30, а B50-30. Звуковая тоже ValleyView. Обнаружилось, что skype не слышит микрофон.
Разбирательства привели к следующим выводам. Дело, похоже, не в skype и не в конфигурации PulseAudio. На другом ноуте Lenovo (ThinkPad T440p) такая же версия Ubuntu 14.04 LTS, та же версия PulseAudio (1:4.0-0ubuntu11.1), но, естественно, другая звуковуха: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller. И там встроенный микрофон работает.
Итак, имею следующие наблюдения.
Lenovo B50-30.
user@zvezda:~$ lspci |grep -i audio
00:1b.0 Audio device: Intel Corporation ValleyView High Definition Audio Controller (rev 0e)
user@zvezda:~$ pacmd list-sources
Welcome to PulseAudio! Use "help" for usage information.
>>> 2 source(s) available.
index: 0
name: <alsa_output.pci-0000_00_1b.0.analog-stereo.monitor>
driver: <module-alsa-card.c>
flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 1950
volume: 0: 100% 1: 100%
0: 0,00 dB 1: 0,00 dB
balance 0,00
base volume: 100%
0,00 dB
volume steps: 65537
muted: no
current latency: 0,00 ms
max rewind: 0 KiB
sample spec: s16le 2ch 44100Гц
channel map: front-left,front-right
Стерео
used by: 0
linked by: 0
configured latency: 0,00 ms; range is 0,50 .. 371,52 ms
monitor_of: 0
card: 0 <alsa_card.pci-0000_00_1b.0>
module: 5
properties:
device.description = "Monitor of Встроенное аудио Аналоговое стерео"
device.class = "monitor"
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0x90910000 irq 95"
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 = "0f04"
device.product.name = "ValleyView High Definition Audio Controller"
device.form_factor = "internal"
device.string = "0"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
* index: 1
name: <alsa_input.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 9959
volume: 0: 34% 1: 34%
0: -28,46 dB 1: -28,46 dB
balance 0,00
base volume: 10%
-60,00 dB
volume steps: 65537
muted: no
current latency: 0,00 ms
max rewind: 0 KiB
sample spec: s16le 2ch 44100Гц
channel map: front-left,front-right
Стерео
used by: 0
linked by: 0
configured latency: 0,00 ms; range is 0,50 .. 371,52 ms
card: 0 <alsa_card.pci-0000_00_1b.0>
module: 5
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC233 Analog"
alsa.id = "ALC233 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 0x90910000 irq 95"
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 = "0f04"
device.product.name = "ValleyView 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 = "Аналоговое стерео"
device.description = "Встроенное аудио Аналоговое стерео"
alsa.mixer_name = "Intel Valleyview2 HDMI"
alsa.components = "HDA:10ec0235,17aa3802,00100002 HDA:80862882,80860101,00100000"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-input-microphone-internal: Встроенный микрофон (priority 8900, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-input-microphone"
analog-input-microphone: Микрофон (priority 8700, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-input-microphone"
active port: <analog-input-microphone-internal>
>>>
Запись стерео работает нормально:
user@zvezda:~$ parecord -r --format=s16le --rate=48000 --channels=2 --stream-name="STEREO-48K" >stereo.wav
Лог PulseAudio соответствующий этому событию:
( 316.095| 145.895) I: [pulseaudio] client.c: Created 5 "Native client (UNIX socket client)"
( 316.095| 0.000) I: [pulseaudio] protocol-native.c: Got credentials: uid=1000 gid=1000 success=1
( 316.096| 0.001) I: [pulseaudio] module-stream-restore.c: Restoring device for stream source-output-by-application-name:parecord.
( 316.096| 0.000) I: [pulseaudio] source-output.c: Trying to change sample rate
( 316.096| 0.000) I: [pulseaudio] alsa-source.c: Updating rate for device front:0, new rate is 48000
( 316.096| 0.000) I: [pulseaudio] source.c: Changed sampling rate successfully
( 316.096| 0.000) I: [pulseaudio] source-output.c: Rate changed to 48000 Hz
( 316.096| 0.000) I: [pulseaudio] module-stream-restore.c: Restoring mute state for source output source-output-by-application-name:parecord.
( 316.098| 0.001) I: [alsa-source-ALC233 Analog] alsa-source.c: Trying resume...
( 316.105| 0.007) I: [alsa-source-ALC233 Analog] alsa-util.c: Trying to disable ALSA period wakeups, using timers only
( 316.122| 0.017) I: [alsa-source-ALC233 Analog] alsa-util.c: ALSA period wakeups disabled
( 316.122| 0.000) I: [alsa-source-ALC233 Analog] alsa-source.c: Time scheduling watermark is 18,38ms
( 316.122| 0.000) I: [alsa-source-ALC233 Analog] alsa-source.c: Resumed successfully...
( 316.122| 0.000) I: [alsa-source-ALC233 Analog] alsa-source.c: Starting capture.
( 316.123| 0.000) I: [pulseaudio] source-output.c: Created output 0 "STEREO-48K" on alsa_input.pci-0000_00_1b.0.analog-stereo with sample spec s16le 2ch 48000Гц and channel map front-left,front-right
( 316.123| 0.000) I: [pulseaudio] source-output.c: media.name = "STEREO-48K"
( 316.123| 0.000) I: [pulseaudio] source-output.c: media.format = "WAV (Microsoft)"
( 316.123| 0.000) I: [pulseaudio] source-output.c: application.name = "parecord"
( 316.123| 0.000) I: [pulseaudio] source-output.c: native-protocol.peer = "UNIX socket client"
( 316.123| 0.000) I: [pulseaudio] source-output.c: native-protocol.version = "28"
( 316.123| 0.000) I: [pulseaudio] source-output.c: application.process.id = "4257"
( 316.123| 0.000) I: [pulseaudio] source-output.c: application.process.user = "user"
( 316.123| 0.000) I: [pulseaudio] source-output.c: application.process.host = "zvezda"
( 316.123| 0.000) I: [pulseaudio] source-output.c: application.process.binary = "pacat"
( 316.123| 0.000) I: [pulseaudio] source-output.c: application.language = "ru_RU.UTF-8"
( 316.123| 0.000) I: [pulseaudio] source-output.c: window.x11.display = ":0"
( 316.123| 0.000) I: [pulseaudio] source-output.c: application.process.machine_id = "4e8956d20d6f3436289d38ed56046356"
( 316.123| 0.000) I: [pulseaudio] source-output.c: application.process.session_id = "c2"
( 316.123| 0.000) I: [pulseaudio] source-output.c: module-stream-restore.id = "source-output-by-application-name:parecord"
( 316.123| 0.000) I: [pulseaudio] protocol-native.c: Final latency 2000,00 ms = 2000,00 ms + 0,00 ms
( 319.993| 3.869) I: [pulseaudio] source-output.c: Freeing output 0 "STEREO-48K"
( 319.993| 0.000) I: [pulseaudio] client.c: Freed 5 "parecord"
( 319.993| 0.000) I: [pulseaudio] protocol-native.c: Connection died.
( 324.998| 5.004) I: [pulseaudio] module-suspend-on-idle.c: Source alsa_input.pci-0000_00_1b.0.analog-stereo idle for too long, suspending ...
( 325.000| 0.002) I: [alsa-source-ALC233 Analog] alsa-source.c: Device suspended...
Проигрываю только что записанный файл -- всё хорошо слышу.
user@zvezda:~$ paplay -p stereo.wav
Лог PulseAudio соответствующий этому событию:
( 392.946| 67.946) I: [pulseaudio] client.c: Created 6 "Native client (UNIX socket client)"
( 392.947| 0.000) I: [pulseaudio] protocol-native.c: Got credentials: uid=1000 gid=1000 success=1
( 392.949| 0.002) I: [pulseaudio] sink-input.c: Trying to change sample rate
( 392.949| 0.000) I: [pulseaudio] alsa-sink.c: Updating rate for device front:0, new rate is 48000
( 392.949| 0.000) I: [pulseaudio] sink.c: Changed sampling rate successfully
( 392.949| 0.000) I: [pulseaudio] sink-input.c: Rate changed to 48000 Hz
( 392.950| 0.001) I: [alsa-sink-ALC233 Analog] alsa-sink.c: Trying resume...
( 392.958| 0.007) I: [alsa-sink-ALC233 Analog] alsa-util.c: Trying to disable ALSA period wakeups, using timers only
( 392.982| 0.024) I: [alsa-sink-ALC233 Analog] alsa-util.c: ALSA period wakeups disabled
( 392.982| 0.000) I: [alsa-sink-ALC233 Analog] alsa-sink.c: Time scheduling watermark is 18,38ms
( 392.982| 0.000) I: [alsa-sink-ALC233 Analog] alsa-sink.c: Resumed successfully...
( 392.984| 0.001) I: [alsa-sink-ALC233 Analog] alsa-sink.c: Starting playback.
( 392.984| 0.000) I: [pulseaudio] sink-input.c: Created input 0 "stereo.wav" on alsa_output.pci-0000_00_1b.0.analog-stereo with sample spec s16le 2ch 48000Гц and channel map front-left,front-right
( 392.984| 0.000) I: [pulseaudio] sink-input.c: media.format = "WAV (Microsoft)"
( 392.984| 0.000) I: [pulseaudio] sink-input.c: application.name = "paplay"
( 392.984| 0.000) I: [pulseaudio] sink-input.c: media.name = "stereo.wav"
( 392.984| 0.000) I: [pulseaudio] sink-input.c: native-protocol.peer = "UNIX socket client"
( 392.984| 0.000) I: [pulseaudio] sink-input.c: native-protocol.version = "28"
( 392.984| 0.000) I: [pulseaudio] sink-input.c: application.process.id = "4265"
( 392.984| 0.000) I: [pulseaudio] sink-input.c: application.process.user = "user"
( 392.984| 0.000) I: [pulseaudio] sink-input.c: application.process.host = "zvezda"
( 392.984| 0.000) I: [pulseaudio] sink-input.c: application.process.binary = "pacat"
( 392.984| 0.000) I: [pulseaudio] sink-input.c: application.language = "ru_RU.UTF-8"
( 392.984| 0.000) I: [pulseaudio] sink-input.c: window.x11.display = ":0"
( 392.984| 0.000) I: [pulseaudio] sink-input.c: application.process.machine_id = "4e8956d20d6f3436289d38ed56046356"
( 392.984| 0.000) I: [pulseaudio] sink-input.c: application.process.session_id = "c2"
( 392.984| 0.000) I: [pulseaudio] sink-input.c: module-stream-restore.id = "sink-input-by-application-name:paplay"
( 392.984| 0.000) I: [pulseaudio] protocol-native.c: Requested tlength=2000,00 ms, minreq=20,00 ms
( 392.984| 0.000) I: [pulseaudio] protocol-native.c: Final latency 2341,33 ms = 1960,00 ms + 2*20,00 ms + 341,33 ms
( 396.549| 3.565) I: [pulseaudio] sink-input.c: Freeing input 0 "stereo.wav"
( 396.554| 0.004) I: [pulseaudio] client.c: Freed 6 "paplay"
( 396.554| 0.000) I: [pulseaudio] protocol-native.c: Connection died.
( 401.554| 4.999) I: [pulseaudio] module-suspend-on-idle.c: Sink alsa_output.pci-0000_00_1b.0.analog-stereo idle for too long, suspending ...
( 401.556| 0.001) I: [alsa-sink-ALC233 Analog] alsa-sink.c: Device suspended...
Записываю в режиме моно (так делает skype -- подсмотрел в логе pulseaudio, когда skype начинает слушать):
user@zvezda:~$ parecord -r --format=s16le --rate=48000 --channels=1 --stream-name="MONO-48K" >mono.wav
^C
Соответствующий лог в PulseAudio:
( 561.626| 160.070) I: [pulseaudio] client.c: Created 7 "Native client (UNIX socket client)"
( 561.627| 0.000) I: [pulseaudio] protocol-native.c: Got credentials: uid=1000 gid=1000 success=1
( 561.628| 0.001) I: [pulseaudio] module-stream-restore.c: Restoring device for stream source-output-by-application-name:parecord.
( 561.628| 0.000) I: [pulseaudio] source-output.c: Trying to change sample rate
( 561.628| 0.000) I: [pulseaudio] module-stream-restore.c: Restoring mute state for source output source-output-by-application-name:parecord.
( 561.629| 0.000) I: [alsa-source-ALC233 Analog] alsa-source.c: Trying resume...
( 561.635| 0.005) I: [alsa-source-ALC233 Analog] alsa-util.c: Trying to disable ALSA period wakeups, using timers only
( 561.650| 0.015) I: [alsa-source-ALC233 Analog] alsa-util.c: ALSA period wakeups disabled
( 561.650| 0.000) I: [alsa-source-ALC233 Analog] alsa-source.c: Time scheduling watermark is 18,38ms
( 561.650| 0.000) I: [alsa-source-ALC233 Analog] alsa-source.c: Resumed successfully...
( 561.650| 0.000) I: [alsa-source-ALC233 Analog] alsa-source.c: Starting capture.
( 561.650| 0.000) I: [pulseaudio] resampler.c: Forcing resampler 'copy', because of fixed, identical sample rates.
( 561.650| 0.000) I: [pulseaudio] remap.c: Using generic matrix remapping
( 561.650| 0.000) I: [pulseaudio] resampler.c: Using resampler 'copy'
( 561.650| 0.000) I: [pulseaudio] resampler.c: Using s16le as working format.
( 561.650| 0.000) I: [pulseaudio] source-output.c: Created output 1 "MONO-48K" on alsa_input.pci-0000_00_1b.0.analog-stereo with sample spec s16le 1ch 48000Гц and channel map mono
( 561.650| 0.000) I: [pulseaudio] source-output.c: media.name = "MONO-48K"
( 561.650| 0.000) I: [pulseaudio] source-output.c: media.format = "WAV (Microsoft)"
( 561.650| 0.000) I: [pulseaudio] source-output.c: application.name = "parecord"
( 561.650| 0.000) I: [pulseaudio] source-output.c: native-protocol.peer = "UNIX socket client"
( 561.650| 0.000) I: [pulseaudio] source-output.c: native-protocol.version = "28"
( 561.650| 0.000) I: [pulseaudio] source-output.c: application.process.id = "4271"
( 561.650| 0.000) I: [pulseaudio] source-output.c: application.process.user = "user"
( 561.650| 0.000) I: [pulseaudio] source-output.c: application.process.host = "zvezda"
( 561.650| 0.000) I: [pulseaudio] source-output.c: application.process.binary = "pacat"
( 561.650| 0.000) I: [pulseaudio] source-output.c: application.language = "ru_RU.UTF-8"
( 561.650| 0.000) I: [pulseaudio] source-output.c: window.x11.display = ":0"
( 561.650| 0.000) I: [pulseaudio] source-output.c: application.process.machine_id = "4e8956d20d6f3436289d38ed56046356"
( 561.650| 0.000) I: [pulseaudio] source-output.c: application.process.session_id = "c2"
( 561.650| 0.000) I: [pulseaudio] source-output.c: module-stream-restore.id = "source-output-by-application-name:parecord"
( 561.650| 0.000) I: [pulseaudio] protocol-native.c: Final latency 2000,00 ms = 2000,00 ms + 0,00 ms
( 565.114| 3.463) I: [pulseaudio] source-output.c: Freeing output 1 "MONO-48K"
( 565.114| 0.000) I: [pulseaudio] client.c: Freed 7 "parecord"
( 565.115| 0.000) I: [pulseaudio] protocol-native.c: Connection died.
( 570.119| 5.004) I: [pulseaudio] module-suspend-on-idle.c: Source alsa_input.pci-0000_00_1b.0.analog-stereo idle for too long, suspending ...
( 570.121| 0.001) I: [alsa-source-ALC233 Analog] alsa-source.c: Device suspended...
Проигрываю только что записанный файл -- и тишина...
user@zvezda:~$ play -p mono.wav
лог pulseaudio:
( 800.228| 230.107) I: [pulseaudio] client.c: Created 8 "Native client (UNIX socket client)"
( 800.228| 0.000) I: [pulseaudio] protocol-native.c: Got credentials: uid=1000 gid=1000 success=1
( 800.231| 0.002) I: [pulseaudio] sink-input.c: Trying to change sample rate
( 800.232| 0.000) I: [alsa-sink-ALC233 Analog] alsa-sink.c: Trying resume...
( 800.238| 0.006) I: [alsa-sink-ALC233 Analog] alsa-util.c: Trying to disable ALSA period wakeups, using timers only
( 800.262| 0.024) I: [alsa-sink-ALC233 Analog] alsa-util.c: ALSA period wakeups disabled
( 800.262| 0.000) I: [alsa-sink-ALC233 Analog] alsa-sink.c: Time scheduling watermark is 18,38ms
( 800.262| 0.000) I: [alsa-sink-ALC233 Analog] alsa-sink.c: Resumed successfully...
( 800.263| 0.000) I: [alsa-sink-ALC233 Analog] alsa-sink.c: Starting playback.
( 800.263| 0.000) I: [pulseaudio] resampler.c: Forcing resampler 'copy', because of fixed, identical sample rates.
( 800.263| 0.000) I: [pulseaudio] remap_sse.c: Using SSE2 mono to stereo remapping
( 800.263| 0.000) I: [pulseaudio] resampler.c: Using resampler 'copy'
( 800.263| 0.000) I: [pulseaudio] resampler.c: Using s16le as working format.
( 800.263| 0.000) I: [pulseaudio] sink-input.c: Created input 1 "mono.wav" on alsa_output.pci-0000_00_1b.0.analog-stereo with sample spec s16le 1ch 48000Гц and channel map mono
( 800.263| 0.000) I: [pulseaudio] sink-input.c: media.format = "WAV (Microsoft)"
( 800.263| 0.000) I: [pulseaudio] sink-input.c: application.name = "paplay"
( 800.263| 0.000) I: [pulseaudio] sink-input.c: media.name = "mono.wav"
( 800.263| 0.000) I: [pulseaudio] sink-input.c: native-protocol.peer = "UNIX socket client"
( 800.263| 0.000) I: [pulseaudio] sink-input.c: native-protocol.version = "28"
( 800.263| 0.000) I: [pulseaudio] sink-input.c: application.process.id = "4286"
( 800.263| 0.000) I: [pulseaudio] sink-input.c: application.process.user = "user"
( 800.263| 0.000) I: [pulseaudio] sink-input.c: application.process.host = "zvezda"
( 800.263| 0.000) I: [pulseaudio] sink-input.c: application.process.binary = "pacat"
( 800.263| 0.000) I: [pulseaudio] sink-input.c: application.language = "ru_RU.UTF-8"
( 800.263| 0.000) I: [pulseaudio] sink-input.c: window.x11.display = ":0"
( 800.263| 0.000) I: [pulseaudio] sink-input.c: application.process.machine_id = "4e8956d20d6f3436289d38ed56046356"
( 800.263| 0.000) I: [pulseaudio] sink-input.c: application.process.session_id = "c2"
( 800.263| 0.000) I: [pulseaudio] sink-input.c: module-stream-restore.id = "sink-input-by-application-name:paplay"
( 800.263| 0.000) I: [pulseaudio] protocol-native.c: Requested tlength=2000,00 ms, minreq=20,00 ms
( 800.263| 0.000) I: [pulseaudio] protocol-native.c: Final latency 2341,33 ms = 1960,00 ms + 2*20,00 ms + 341,33 ms
( 803.504| 3.240) I: [pulseaudio] sink-input.c: Freeing input 1 "mono.wav"
( 803.507| 0.003) I: [pulseaudio] client.c: Freed 8 "paplay"
( 803.508| 0.000) I: [pulseaudio] protocol-native.c: Connection died.
( 808.506| 4.998) I: [pulseaudio] module-suspend-on-idle.c: Sink alsa_output.pci-0000_00_1b.0.analog-stereo idle for too long, suspending ...
( 808.510| 0.003) I: [alsa-sink-ALC233 Analog] alsa-sink.c: Device suspended...
Можно заметить, что разница в записи выглядит так в логах:
Created output ... with sample spec s16le 2ch 48000Гц and channel map front-left,front-right
-- всё слышно;
Created output ... with sample spec s16le 1ch 48000Гц and channel map mono
-- ничего не слышно.
Если проигрываю уже записанный выше stereo.wav файл следующим образом, имею разный результат:
* слышу стерео во всех случаях:
user@zvezda:~$ paplay -p stereo.wav
user@zvezda:~$ paplay -p --channel-map=front-left,front-right stereo.wav
user@zvezda:~$ paplay -p --channel-map=front-right,front-left stereo.wav
* не слышу *ничего*:
user@zvezda:~$ paplay -p --channel-map=mono,mono stereo.wav
* слышу только *левую* колонку в обоих случаях:
user@zvezda:~$ paplay -p --channel-map=mono,front-right stereo.wav
user@zvezda:~$ paplay -p --channel-map=front-right,mono stereo.wav
* слышу только *правую* колонку в обоих случаях:
user@zvezda:~$ paplay -p --channel-map=front-left,mono stereo.wav
user@zvezda:~$ paplay -p --channel-map=mono,front-left stereo.wav
Если проигрываю записанный выше mono.wav, ничего не слышу во всет трёх случаях:
user@zvezda:~$ paplay -p --channel-map=mono mono.wav
user@zvezda:~$ paplay -p --channel-map=front-left mono.wav
user@zvezda:~$ paplay -p --channel-map=front-right mono.wav
Если записываю mono с ремаппингом:
user@zvezda:~$ parecord -r --format=s16le --rate=48000 --channels=1 --stream-name="MONO-48K" --channel-map=front-left >mono-left.wav
Предупреждение: не удалось записать схему каналов в файл.
^C
То затем могу записанное услышать:
* слышу стерео:
user@zvezda:~$ paplay -p mono-left.wav
* слышу только слева:
user@zvezda:~$ paplay -p --channel-map=front-left mono-left.wav
* слышу только справа:
user@zvezda:~$ paplay -p --channel-map=front-right mono-left.wav
Аналогично, если в ремапинге при записи указывать "право":
user@zvezda:~$ parecord -r --format=s16le --rate=48000 --channels=1 --stream-name="MONO-48K" --channel-map=front-left >mono-right.wav
Предупреждение: не удалось записать схему каналов в файл.
^C
* слышу стерео:
user@zvezda:~$ paplay -p mono-right.wav
* слышу только слева:
user@zvezda:~$ paplay -p --channel-map=front-left mono-right.wav
* слышу только справа:
user@zvezda:~$ paplay -p --channel-map=front-right mono-right.wav
Я был бы очень признателен форумчанам, если бы мне помогли с этим разобраться и, если это возможно, "починить микрофон в скайпе". Cкайп записывает микрофон как mono:
(2778.048| 0.000) I: [pulseaudio] source-output.c: Created output 6 "Input" on alsa_input.pci-0000_00_1b.0.analog-stereo with sample spec s16le 1ch 48000Гц and channel map mono
Поэтому для меня сейчас проблема выглядит как "замапить mono на, например, front-left"
Интересно также, почему не записывает в mono -- это баг в железе?
Тема: Не работает микрофон на Lenovo g50 с kUbuntu 14.04 (Прочитано 8272 раз)
