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Chart For frequencies and notes — Parallax Forums

Chart For frequencies and notes

AndroidAndroid Posts: 82
edited 2012-06-27 20:20 in General Discussion
Hello! Does anyone one know where I can find a chart that tells me what frequencies equal what musical note. Please respond.

Comments

  • tingotingo Posts: 87
    edited 2012-06-27 10:55
    It' s amazing what you can find on Wikipedia: http://en.wikipedia.org/wiki/Note#Note_frequency_.28hertz.29
    Ther is also something called Google.
  • AndroidAndroid Posts: 82
    edited 2012-06-27 11:41
    Found a chart and made this program!
    It plays Mary had a Little Lamb on basic stamp 2 when piezospeaker is wired to p4. 
    ' {$STAMP BS2}
' {$PBASIC 2.5}
DO 
PAUSE 2000
FREQOUT 4, 600, 2673  'E
FREQOUT 4, 600, 2349  'D
FREQOUT 4, 600, 2093  'C
FREQOUT 4, 600, 2349  'D
FREQOUT 4, 600, 2673  'E
FREQOUT 4, 600, 2673  'E
FREQOUT 4, 1100, 2673 'E
FREQOUT 4, 600, 2349  'D
FREQOUT 4, 600, 2349  'D
FREQOUT 4, 1100, 2349 'D
FREQOUT 4, 600, 2673  'E
FREQOUT 4, 600, 3136  'G
FREQOUT 4, 1100, 3136 'G
FREQOUT 4, 600, 2673  'E
FREQOUT 4, 600, 2349  'D
FREQOUT 4, 600, 2093  'C
FREQOUT 4, 600, 2349  'D
FREQOUT 4, 600, 2673  'E
FREQOUT 4, 600, 2673  'E
FREQOUT 4, 600, 2673  'E
FREQOUT 4, 600, 2673  'E
FREQOUT 4, 600, 2349  'D
FREQOUT 4, 600, 2349  'D
FREQOUT 4, 600, 2673  'E
FREQOUT 4, 600, 2349  'D
FREQOUT 4, 1100, 2093 'C
LOOP
    Going to make it play Viva La Vida next!
  • Heater.Heater. Posts: 21,230
    edited 2012-06-27 11:55
    No chart is required. On the equally tempered scale each note is the twelth root of two up from the previous one. That is 12 notes in an octave including the "black" ones. Middle C is 440Hz. There you go.
  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2012-06-27 12:02
    heater wrote:
    Middle C is 440Hz.
    The A above middle C is 440 Hz.

    -Phil
  • AndroidAndroid Posts: 82
    edited 2012-06-27 12:35
    Heater,
    Thank you for the how to. It will be helpful for further projects.
    - Android
  • Heater.Heater. Posts: 21,230
    edited 2012-06-27 12:40
    Err, yeah. As you can see I'm not very musical.
  • ercoerco Posts: 20,261
    edited 2012-06-27 17:13
    Heater. wrote: »
    Err, yeah. As you can see I'm not very musical.

    What's musical about icy sidewalks? If you don't C-sharp, you'll B-flat...

    Sorry. That joke was bad when it was in "Boy's Life" magazine 40 years ago. But memorable.
  • PJAllenPJAllen Banned Posts: 5,065
    edited 2012-06-27 20:20
    Boys' Life
    The parody in National Lampoon... Boys' Real Life... I couldn't stop laughing for a week.
    Maybe I should scan that and post it.
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