Note Values for BS1 SOUND Instruction
flashular
Posts: 1
I've just started w/ my BS1, so pardon me if someone has posted elsewhere this before. I wrote a simple program to convert musical notes into SOUND values. This might come in handy for anyone who wants to layout a keyboard application or write simple songs on the BS1. The table range is limited at the low end by the lowest sound value and the high end by precision in frequency (at the point where two sound values bridge a note interval ). As you can see the resolution starts to fall apart very quickly around the 4th octave, but using fairly low notes the BS1 can provide decent single not pitch.
Post Edited By Moderator (Jon Williams (Parallax)) : 4/18/2006 10:04:15 PM GMT
Note Frequency (Hz) Val Err (%) G 1 98.00 005 +0.164 G#1 103.83 012 +0.088 A 2 110.00 019 -0.352 A#2 116.54 025 -0.230 B 2 123.47 031 -0.447 C 2 130.81 036 +0.046 C#2 138.59 041 +0.243 D 2 146.83 046 +0.110 D#2 155.56 051 -0.394 E 2 164.81 055 +0.058 F 2 174.61 059 +0.211 F#2 185.00 063 +0.028 G 2 196.00 067 -0.534 G#2 207.65 070 +0.213 A 3 220.00 073 +0.689 A#3 233.08 076 +0.870 B 3 246.94 079 +0.722 C 3 261.63 082 +0.202 C#3 277.18 085 -0.746 D 3 293.66 087 +0.286 D#3 311.13 089 +1.074 E 3 329.63 092 -1.124 F 3 349.23 094 -1.039 F#3 369.99 096 -1.302 G 3 392.00 097 +1.313 G#3 415.30 099 +0.460 A 4 440.00 101 -0.876 A#4 466.16 102 +1.144 B 4 493.88 104 -1.036 C 4 523.25 105 +0.514 C#4 554.37 106 +1.857 D 4 587.33 108 -1.831 D#4 622.25 109 -1.137 E 4 659.26 110 -0.721 F 4 698.46 111 -0.613 F#4 739.99 112 -0.849 G 4 783.99 113 -1.474 G#4 830.61 114 -2.550 A 5 880.00 114 +3.206 A#5 932.33 115 +1.688 B 5 987.77 116 -0.435 C 5 1046.50 117 -3.304
Post Edited By Moderator (Jon Williams (Parallax)) : 4/18/2006 10:04:15 PM GMT
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Be sure add an appropriate subject line when you start new threads -- I've fixed this one for you.
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Jon Williams
Applications Engineer, Parallax