Topic on Extension talk:Score

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Hydrargyrum (talkcontribs)

The Vorbis player output is noisy, producing what sounds like static crackle and stuttering at the beginning of playback. I tried all the examples shown on this Talk page, and every one of them behaves the same way. Curiously, if I pause the playback and then resume it, the sound comes out cleanly, without the static or stutter. Is this a problem with the Vorbis player implementation, or is there a problem in the LilyPond notation conversion to .ogg format? I'm accessing the player with a Linux machine, if that means anything.

Michielderoo (talkcontribs)

I downloaded the ogg file and opened it in Audacity sound editor. The problem is in the ogg file, not in the player. The crackle is only in the right channel.

Skierpage (talkcontribs)

I think you're noticing what I reported this in phab:T50029 "crackling at start of OGG renditions of MIDI files." The bug in the third-party TiMidity software that generates the audio file. It was fixed years ago in a newer version, TiMidity++ 2.14.0, but the Linux distribution that the Wikimedia Foundation uses doesn't ship the fixed version :-( . Instead the extension switched to using Fluidsynth to generate the audio file (phab:T181897).

What's interesting is the crackling noise is still present in the sample on Extension:Score and on some of my old user pages, but not if I copy that score tag to a new page and preview there. It seems Mediawiki aggressively caches the generated audiofile for years!? I wonder if there's a way to invalidate all the generated .ogg audio files in some cache.

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