The black smoke monster releases several distinct noises.

• The howling sound is usually in concert pitch A. The frequency of this pitch is 440 hertz. In music, "A-440" is the standard to which musical instruments are tuned.
• In the voice-over commentary for "The 23rd Psalm" on the Season 2 DVD, producer Bryan Burk confirmed that one of the Monster's sound effects is the receipt printer from a NYC taxi cab. You can hear the sound here.
  • This may be why Rose says that she recognizes the sound, being from the Bronx.
• This was reaffirmed in the May 21, 2007 Official Lost Podcast, but it was clarified that the mythology of the Monster is unrelated to the cabs and was just a matter of sound effects. This sound effect was heard in the following scenes:
  • When Locke punched some numbers into a counting machine, right before the first commercial ("Walkabout")
  • As the Monster flew by Kate and Jack ("Exodus, Part 2")
  • Before Nikki gets bitten by the Medusa spider, as was confirmed on the Season 3 DVD commentary for that episode ("Exposé")

See alsoEdit

• Visual effects