Audio Generation Buggy for low notes?

[petterthowsen]

Godot version

3.5.stable

System information

Windows 11, Intel i5

Issue description

I took the Audio Generation Demo and modified it to play a series of low notes (C2, D2, D#2, F2, G2) and it sounds wierd.

Higher notes such as C4 sound fine. I've tried changing the sample rate and buffer length to no avail.

Steps to reproduce

Just generate low notes.

Minimal reproduction project

audio_geneneration_low_notes.zip