Ubuntu v20 audio distorted

HP Pavillion 15-cc523ca

I upgraded Ubuntu 16 to version 20. The audio on my external speakers is distorted.
This was working fine in version 16 and also works in windows 10. I have a dual boot system.
The distortion is also coming from the internal speakers. Can this be related.

I have re-installed the Alsa drivers and among others I have gone through this document:

https://help.ubuntu.com/community/SoundTroubleshootingProcedure

Additional information:

APLAY

**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC295 Analog [ALC295 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

!!Kernel Information
!!------------------

Kernel release: 5.4.0-52-generic
Operating System: GNU/Linux
Architecture: x86_64
Processor: x86_64
SMP Enabled: Yes

!!ALSA Version
!!------------

Driver version: k5.4.0-52-generic
Library version: 1.2.2
Utilities version: 1.2.2

!!Loaded ALSA modules
!!-------------------

snd_hda_intel

!!Sound Servers on this system
!!----------------------------

Pulseaudio:
      Installed - Yes (/usr/bin/pulseaudio)
      Running - Yes

!!Soundcards recognised by ALSA
!!-----------------------------

 0 [PCH ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xb1228000 irq 131