Professor Oak's lab music glitch

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Revision as of 05:16, 1 March 2019 by >Bbbbbbbbba
More research is needed for this article.

Reason given: Can this glitch happen in other cutscenes?



The Professor Oak's lab music glitch occurs in Pokémon Red and Blue. Very rarely at the beginning of the game after the player is led to Professor Oak's lab, the Professor Oak's lab theme that starts playing would be glitched. It can either sound like a simplified and slower version of the intended theme, or it can sound very different, although with the correct tempo.

This glitch happens because one of the three audio channels (Ch0, Ch1, Ch2) of Professor Oak's lab theme is ended before it starts. Among those channels, Ch1 is the main tune, but Ch0 contains the audio commands to set the tempo of the music. As a result:

  • If Ch0 is glitched out, then the tempo will remain at the default value 256 (0x0100), instead of 140 (0x008C; larger number is slower). Therefore the music is slower, and also simpler because one of the side channels is not played.
  • If Ch1 is glitched out, then the main tune will not be played, making the music sound very different.
  • If Ch2 is glitched out, then the music also becomes simpler, but it's a less noticeable effect than the two previous cases.

YouTube video by ChickasaurusGL

(@1:34; Ch0 glitched out)

YouTube video by gifvex

(@1:16; Ch1 glitched out; notice that some noted are masked out by the text box jingles, which also play in Ch0)