This bug is potentially the same one as 1716654 and also effects me as a
single ALC1220 user (The gigabyte board has a second one which is not
the case on the MSI X370 Pro Carbon).
--- Copy from my comment at 1716654 ---
Having the same issue on the MSI X370 Gaming Pro Carbon, audio is fine but the
microphone is having weird behavior that differs depending on configuration.
When audacity is launched it will trigger the bug that increases the
recording speed to be insanely high pitched and fast. Prior to using
audacity i will hear a robotic noise while speaking that is also present
as a robotic echo.
Making use of the tsched=0 the robotic distortion is gone but replaced
with severe crackling that over time becomes less severe but still very
notable.
The following is an export of the alsa source.
index: 1
name: <alsa_input.pci-0000_21_00.3.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
DYNAMIC_LATENCY
state: RUNNING
suspend cause:
priority: 9039
volume: front-left: 32768 / 50% / -18,06 dB, front-right: 32768 / 50% / -18,06
dB
balance 0,00
base volume: 6554 / 10% / -60,00 dB
volume steps: 65537
muted: no
current latency: 0,22 ms
max rewind: 0 KiB
sample spec: s16le 2ch 48000Hz
channel map: front-left,front-right
Stereo
used by: 1
linked by: 1
configured latency: 2,50 ms; range is 0,50 .. 1837,33 ms
card: 1 <alsa_card.pci-0000_21_00.3>
module: 8
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC1220 Analog"
alsa.id = "ALC1220 Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "1"
alsa.card_name = "HD-Audio Generic"
alsa.long_card_name = "HD-Audio Generic at 0xfe900000 irq 64"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:21:00.3"
sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:21:00.3/sound/card1"
device.bus = "pci"
device.vendor.id = "1022"
device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
device.product.id = "1457"
device.product.name = "Family 17h (Models 00h-0fh) HD Audio Controller"
device.string = "front:1"
device.buffering.buffer_size = "352768"
device.buffering.fragment_size = "176384"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Family 17h (Models 00h-0fh) HD Audio Controller Analog
Stereo"
alsa.mixer_name = "Realtek ALC1220"
alsa.components = "HDA:10ec1220,1462da32,00100003"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-input-front-mic: Front Microphone (priority 8500, latency offset 0
usec, available: yes)
properties:
device.icon_name = "audio-input-microphone"
analog-input-rear-mic: Rear Microphone (priority 8200, 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:
Very notable here is the buffer size which falls short of the required
buffer size 44800 while in Windows the card can go up to 24-bit , 192000
without having to resort to a third party driver.
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https://bugs.launchpad.net/bugs/1764965
Title:
[Realtek ALC1220 ASUS PRIME X370] Recording is very slow and plays 10x
faster
Status in sound-2.6 (alsa-kernel):
New
Status in alsa-driver package in Ubuntu:
Confirmed
Bug description:
Recording applications (audacity, arecord, gnome-sound-recorder)
record extremely slowly (at what seems to be 0,1x speed), which means
that at playback the sound is played at a very high pitch and much
faster than the original.
To help you understand the issue, I've attached an archive containing two
files recorded at the same time, one with arecord -f cd and the other with a
stand-alone Olympus recorder.
A video of Audacity's behavior when trying to record is also available:
https://youtu.be/Fe20eQNvZVA
Look at the seconds hand of the xclock and how much it is moving before
Audacity is done recording one second of audio.
Things I've already tried:
* Purging and reinstalling Audacity
* Purging and reinstalling Pulseaudio following the guide on the Ubuntu Wiki
* Running audacity with this command: Exec=env PULSE_LATENCY_MSEC=30
audacity as suggested on AskUbuntu
* Reinstalling Ubuntu on a new hard disk
* Running audacity on a live CD (in Ubuntu version 16.04.3, 17.10.1, 18.04
daily and Xubuntu 17.10.1, 18.04)
The machine is a Ryzen 5 1600 with an ASUS X370 Prime motherboard.
The problem can be reproduced as follows:
* Boot a live DVD of Ubuntu/Xubuntu 16.04.3, 17.10.1, 18.04 (versions I've
tested with)
* Install audacity via the terminal
* Start recording, microphone is connected to the rear microphone jack.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.13.0-38.43~16.04.1-generic 4.13.16
Uname: Linux 4.13.0-38-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.16
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: jacopo 2417 F.... pulseaudio
/dev/snd/controlC0: jacopo 2417 F.... pulseaudio
CurrentDesktop: Unity
Date: Wed Apr 18 09:35:50 2018
InstallationDate: Installed on 2018-03-03 (45 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64
(20170801)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingTest: ALSA recording test through plughw:Generic failed
Symptom_Card: HD-Audio Generic - HD-Audio Generic
Symptom_Jack: Pink Mic, Rear
Symptom_Type: None of the above
Title: [System Product Name, Realtek ALC1220, Pink Mic, Rear] Recording
problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/06/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3805
dmi.board.asset.tag: Default string
dmi.board.name: PRIME X370-PRO
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr3805:bd03/06/2018:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEX370-PRO:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
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