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I've been using the abbreviations for quite some time now but I don't know why they are called DX, FX, and MX. (Well, FX I can understand.)

For me, it's practical because it shortens the track name on my DAW and helps with my organization. Just curious how this came about. :) Anyone willing to share some history on it?

I've tried googling it, but nothing really explains it. Thanks guys!

  • Most of those abbreviations seem to be used mostly in the American movie industry. In 30 years of doing PA and the occasional radio broadcast (in NW Europe), I've never come across DX and MX. – Hobbes Oct 25 at 7:20
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They are abbreviations that deduce from the pronunciation of the words

  • FX: Effects
  • MX: Musics (Musix, MSX)
  • DX: Dialogues (Dialox)
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It is an interesting question. I worked in film music for nearly 30 years. We always called them MX, DX, FX. My assumption is it started with effects, as FX sounds just like "Effects" from there it found its way into music and dialogue. Also, in music we have used the "VOX" for vocals for as long as I can remember.

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