audacity VS musescore-downloader

Title feels misleading - skip to the end:

> As for me, I still believe in open source, and even in the commercial potential of open source. It requires creativity and a clever business acumen to identify and exploit market opportunities within this collaborative framework. To win in open source you must embrace this collaboration and embrace the fact that you will share the commercial market for the software with other entities. If you’re up to that challenge, then let’s keep beating the open source drum together. If not, these new movements(source-available software) may be a home for you – but know that a lot of hard work still lies ahead of you in that path.

This article feels more like a critique of the new "source-available" trend in tech whereby existing OSS projects sell out and try to retroactively re-license themselves to be more closed-source friendly. I've been sort of aware of this phenomenon since there was a small upset when Muse Group bought Audacity, though it appears it is still GPL[1].

[1] https://github.com/audacity/audacity/blob/master/LICENSE.txt

#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

I love this kind of behind-the-scenes, in-the-weeds video, and it's well done.

Unfortunately, the incident with a Muse Group director openly blackmailing an open source developer [1] [2], threatening to have him deported to China while specifically calling out his public criticism of the CCP with a disgusting "who knows how he may be received"—well, to say that this incident leaves a bitter mark in my memory would be an understatement. I am happy to be using other free software for my engraving and playback needs, and with Tenacity just recently having published its first stable release, I'm eager to drop Audacity, too.

Truth be told, I was never a heavy MuseScore user, but I have used Audacity regularly for decades. This turn saddens me, but it matters to me how those I support use their power, and threatening someone's life over an audio program is bullying more severe than that which I can condone.

[1]: https://news.ycombinator.com/item?id=27881539

[2]: https://github.com/Xmader/musescore-downloader/issues/5#issu...

I recently discovered that [https://musescore.org](MuseScore) (not free) has an incredible GreaseMonkey script that easily bypasses their paywall. It has worked a bunch of times for me in the last few days: https://github.com/LibreScore/dl-librescore

Someone mentioned this one: https://github.com/LibreScore/dl-librescore

If I have to choose one, I would say musescore-downloader https://github.com/Xmader/musescore-downloader

https://github.com/Xmader/musescore-downloader/issues/141 unfortunately