[Aspire 5745, Intel IbexPeak HDMI, Digital Out, HDMI] Underruns, dropouts or crackling sound

[Manu]

I am not able to hear high quality sound. It may be related to driver issue or any other configuration issue. Please do the needful.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.15.0-42.45-generic 4.15.18
Uname: Linux 4.15.0-42-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: manu 1605 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Sat Dec 8 15:03:05 2018
InstallationDate: Installed on 2018-12-08 (0 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:MID failed
Symptom_Card: Built-in Audio - HDA Intel MID
Symptom_Jack: Digital Out, HDMI
Symptom_PulseAudioLog: Dec 08 14:18:18 Indian dbus-daemon[853]: [system] Activating via systemd: service name='org.freedesktop.RealtimeKit1' unit='rtkit-daemon.service' requested by ':1.31' (uid=121 pid=1281 comm="/usr/bin/pulseaudio --daemonize=no " label="unconfined")
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [Aspire 5745, Intel IbexPeak HDMI, Digital Out, HDMI] Underruns, dropouts or crackling sound
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/09/2010
dmi.bios.vendor: INSYDE
dmi.bios.version: V1.16
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: ZR7
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvrV1.16:bd08/09/2010:svnAcer:pnAspire5745:pvrV1.16:rvnAcer:rnZR7:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.family: Intel_Mobile
dmi.product.name: Aspire 5745
dmi.product.version: V1.16
dmi.sys.vendor: Acer