Crackling audio playback on Chrome with HTML5 threads export (AudioWorklet)

[davcri]

Godot version: 3.3rc6

OS/device including version:

Manjaro Linux + Chrome 89.0.4389.90.

More HW/SW info:

System:
  Kernel: 5.11.6-1-MANJARO x86_64 bits: 64 Desktop: Cinnamon 4.8.6 
  Distro: Manjaro Linux 
Machine:
  Type: Desktop System
  Mobo: ASUSTeK model: ROG STRIX B550-F GAMING (WI-FI) v: Rev X.0x 
CPU:
  Info: 8-Core model: AMD Ryzen 7 3700X bits: 64 type
Graphics:
  Device-1: NVIDIA TU116 [GeForce GTX 1650 SUPER] driver: nvidia v: 460.56 
  Display: x11 server: X.Org 1.20.10 driver: loaded: nvidia resolution: 
  1: 1920x1080~60Hz 2: 1600x900~60Hz 
  OpenGL: renderer: GeForce GTX 1650 SUPER/PCIe/SSE2 v: 4.6.0 NVIDIA 460.56 
Audio:
  Device-1: NVIDIA TU116 High Definition Audio driver: snd_hda_intel 
  Device-2: AMD Starship/Matisse HD Audio driver: snd_hda_intel  (this one it's actually connected to the speakers)
  Device-3: RODE Microphones RODE NT-USB type: USB 
  driver: hid-generic,snd-usb-audio,usbhid 
  Sound Server-1: ALSA v: k5.11.6-1-MANJARO running: yes 
  Sound Server-2: PulseAudio v: 14.2 running: yes 

Issue description:
Audio playback has crackling noises on Chrome with HTML5 threads export. Follows up a discussion from #43210

Some tests that I did with my HW/SW setup:

• Issue it's still there with older Chrome versions (80, 86)
• Changing the output latency to 100ms doesn't mitigate the issue
• Changing audio format to mp3 or ogg doesn't mitigate the issue
• I cannot reproduce the issue on Firefox 87.0. Every combination of export and audio device works fine.
• Video | Issue may be related to a specific combination of Chrome + motherboard audio card + audio driver: audio it's pretty bad on the motherboard audio (Starship/Matisse HD controller which it's my daily output audio device), but it's almost okay with the RODE-NT USB headphones output (it's a USB mic with integrated audio device).
  However it still has some audio crackling.
• Video | Single-thread export plays audio better than multi-thread export

Steps to reproduce:
I can reproduce the issue by simply playing an audio file with the official Godot Web Editor (see video).

Minimal reproduction project:
Web Preview | Repo
Godot project with an AudioStreamPlayer playing a WAV audio. HTML5 exported with threads.

[akien-mga]

Possibly the same issue as this upstream bug report: https://bugs.chromium.org/p/chromium/issues/detail?id=1188901

[Faless]

+1 Godot 3.2.3
https://amberstudios.itch.io/slimes-and-sawblades

It also has weird audio delay/repeat issues on top of the crackling.

That's not the threaded version, see: #47453

[davcri]

I have a good news and a bad news.

• Good news: the issue disappeared after an upgrade of my system (Chrome 90.0, Linux 5.11.10). Now I can go to the MRP (https://davcri.github.io/godot-html5-thread-audio/) and the audio plays perfectly
• Bad bews: I didn't understand what fixed the issue

I tried the MRP with older chrome builds but it seems to work just fine. So I guess that it was related to something with the SW/HW audio stack.

Sorry for the lack of information, let me know if I can make some other test.

[Faless]

Maybe a driver issue fixed by the upgrade?
Closing anyway since it can no longer be reproduced.
Feel free to comment below if you experience the issue again and I'll reopen it.