audacity VS Godot

#5467 Fix 24-bit recording.

The time stretch algorithm is implemented in https://github.com/audacity/audacity/blob/master/libraries/l... particularly functions _time_stretch and _process_hop. It looks to me like a classic phase vocoder with vertical phase coherence (c.f. https://en.wikipedia.org/wiki/Phase_vocoder).

The basic idea is this. For a time-stretch factor of, say, 2x, the frequency spectrum of the stretched output at 2 sec should be the same as the frequency spectrum of the unstretched input at 1 sec. The naive algorithm therefore takes a short section of signal at 1s, translates it to 2s and adds it to the result. Unfortunately, this method generates all sorts of unwanted artifacts.

Imagine a pure sine wave. Now take 2 short sections of the wave from 2 random times, overlap them, and add them together. What happens? Well, it depends on the phase of each section. If the sections are out of phase, they cancel on the overlap; if in phase, they constructively interfere.

The phase vocoder is all about overlapping and adding sections together so that the phases of all the different sine waves in the sections line up. Thus, in any phase vocoder algorithm, you will see code that searches for peaks in the spectrum (see _time_stretch code). Each peak is an assumed sine wave, and corresponding peaks in adjacent frames should have their phases match.

https://github.com/audacity/audacity/releases

If you are able to build from source, you could download the latest source code, or the latest release version source code, and manually apply the patch.

FWIW: We'll be ditching the atlases for 3.4 most likely, in favor of having themes work like they do in source anyway: With individual PNGs for the icons and a Colors.txt containing all the color definitions. With that, custom themes would be much easier to author and also would stop breaking every time we introduce a new icon.

https://github.com/audacity/audacity/issues/4639 this bug mentions everything, I guess it's Audacity after all. To be fixed in 3.3.2

No there isn't. I searched in vain for a workaround, and then checked the Audacity issues and found this: https://github.com/audacity/audacity/issues/3385

Here's an example file tree from a part of the Godot game engine source code.

Godot [1] is a very nice game engine. There's a game on Itch.io that teaches the scripting language it uses [2], and a ton of great tutorials on YouTube for beginners and experts alike.

[1]: https://godotengine.org/

The Bitcoin and Mastadon links don't seem to be working! (wiki not found)

Would love to see this for Godot (https://github.com/godotengine/godot). Maybe Maplibre too (https://github.com/maplibre/maplibre-native)!

Godot Engine is a free and open-source game engine. The story started as an in-house engine of an Argentinian studio in 2007, and since 2014, it's been a community-driven project with a lot of contributors.

I think this is the PR.

Thrive is starting. Log output (due to buffering this is likely not in real time): Godot Engine v3.5.stable.mono.thrive.d2ad79a40 - https://godotengine.org OpenGL ES 3.0 Renderer: GeForce GT 710/PCIe/SSE2 Async. shader compilation: OFF