[Inspiron 3185, Realtek ALC3204, Mic, Internal] Underruns, dropouts or crackling sound

[and]

After recording my voice with a microphone, I hear a crackle when I play the voice.

Noise can be confirmed with Audacity and Cheese.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Tue Jul 7 10:30:36 2020
InstallationDate: Installed on 2020-04-28 (69 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingTest: ALSA recording test through plughw:Generic failed
Symptom_Card: 内部オーディオ - HD-Audio Generic
Symptom_Jack: Mic, Internal
Symptom_PulseAudioLog:
 7月 07 10:28:15 Inspiron-3185 dbus-daemon[635]: [system] Activating via systemd: service name='org.freedesktop.RealtimeKit1' unit='rtkit-daemon.service' requested by ':1.35' (uid=125 pid=820 comm="/usr/bin/pulseaudio --daemonize=no --log-target=jo" label="unconfined")
  7月 07 10:28:36 Inspiron-3185 systemd[805]: pulseaudio.service: Succeeded.
  7月 07 10:28:45 Inspiron-3185 systemd[805]: pulseaudio.socket: Succeeded.
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [Inspiron 3185, Realtek ALC3204, Mic, Internal] Underruns, dropouts or crackling sound
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/09/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.3.0
dmi.board.name: 05NKJF
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 1.3.0
dmi.modalias: dmi:bvnDellInc.:bvr1.3.0:bd03/09/2018:svnDellInc.:pnInspiron3185:pvr1.3.0:rvnDellInc.:rn05NKJF:rvrA00:cvnDellInc.:ct10:cvr1.3.0:
dmi.product.family: Inspiron
dmi.product.name: Inspiron 3185
dmi.product.sku: 087F
dmi.product.version: 1.3.0
dmi.sys.vendor: Dell Inc.