[Precision 7920 Tower, Realtek ALC3234, Speaker, Internal] No sound at all

I am not able to hear any sound from my Dell Precision Tower 7920 running Ubuntu 22.04. I have performed all the basic tests listed here: https://help.ubuntu.com/community/SoundTroubleshooting

Thanks.
Piyoosh

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: alsa-base 1.0.25+dfsg-0ubuntu7
ProcVersionSignature: Ubuntu 5.15.0-60.66-generic 5.15.78
Uname: Linux 5.15.0-60-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jays242 2197 F.... pulseaudio
 /dev/snd/pcmC0D0p: jays242 2197 F...m pulseaudio
 /dev/snd/controlC1: jays242 2197 F.... pulseaudio
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Wed Feb 15 23:47:01 2023
InstallationDate: Installed on 2023-01-24 (22 days ago)
InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jays242 2197 F.... pulseaudio
 /dev/snd/pcmC0D0p: jays242 2197 F...m pulseaudio
 /dev/snd/controlC1: jays242 2197 F.... pulseaudio
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [Precision 7920 Tower, Realtek ALC3234, Speaker, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/15/2022
dmi.bios.release: 2.29
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.29.0
dmi.board.name: 0RV0G2
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.29.0:bd12/15/2022:br2.29:svnDellInc.:pnPrecision7920Tower:pvr:rvnDellInc.:rn0RV0G2:rvrA01:cvnDellInc.:ct3:cvr:sku073A:
dmi.product.family: Precision
dmi.product.name: Precision 7920 Tower
dmi.product.sku: 073A
dmi.sys.vendor: Dell Inc.