This was posted on the Computer Music magazine furom by a chap called "bosch". You lot might find it handy
"I found this useful for understanding frequencies & e.g. avoiding kick/bass clashes. Just found a good one on the web: If you just want a MIDI note 0-127 to frequency chart (CPS/Hz), here it is using Roland's "standard" octave numbering where Middle C = C4: MIDI Note CPS (cycles per second Hz) 0 8.0569 C-1 [where 6.775 would equal A-1] 1 8.5360 2 9.0435 D-1 3 9.5813 4 10.1510 E-1 5 10.7546 F-1 6 11.3941 7 12.0717 G-1 8 12.7895 9 13.7500 A0 10 14.5676 11 15.4339 B0 12 16.3516 C0 13 17.3239 14 18.3540 D0 15 19.4454 16 20.6017 E0 17 21.8268 F0 18 23.1247 19 24.4997 G0 20 25.9565 21 27.5000 A1 Piano low limit 22 29.1352 23 30.8677 B1 24 32.7032 C1 25 36.6478 26 36.7081 D1 27 38.8909 28 41.2034 E1 Bass Guitar low E 29 43.6535 F1 30 46.2493 31 48.9994 G1 32 51.9131 33 55.0000 A2 34 58.2705 35 61.7354 B2 36 65.4064 C2 37 69.2957 38 73.4162 D2 39 77.7817 40 82.4069 E2 Guitar low E 41 87.3071 F2 42 92.4986 43 97.9989 G2 44 103.8262 45 110.0000 A3 46 116.5409 47 123.4708 B3 48 130.8128 C3 49 138.5913 50 146.8324 D3 51 155.5635 52 164.8138 E3 53 174.6141 F3 54 184.9972 55 195.9977 G3 56 207.6523 57 220.0000 A4 58 233.0819 59 246.9417 B4 60 261.6526 C4 Middle C 61 277.1826 62 293.6648 D4 63 311.1270 64 329.6276 E4 65 349.2282 F4 66 369.9944 67 391.9954 G4 68 415.3047 69 440.0000 A5 70 466.1638 71 493.8833 B5 72 523.2511 C5 73 554.3653 74 587.3295 D5 75 622.2540 76 659.2551 E5 77 698.4565 F5 78 739.9888 79 783.9909 G5 80 830.6094 81 880.0000 A6 82 932.3275 83 987.7666 B6 84 1046.5023 C6 85 1108.7305 86 1174.6591 D6 87 1244.5079 88 1318.5102 E6 89 1396.9129 F6 90 1479.9777 91 1567.9817 G6 92 1661.2188 93 1760.0000 A7 94 1864.6550 95 1975.5332 B7 96 2093.0045 C7 97 2217.4610 98 2349.3181 D7 99 2489.0159 100 2637.0205 E7 101 2793.8259 F7 102 2959.9554 103 3135.9635 G7 104 3322.4376 105 3520.0000 A8 106 3729.3101 107 3951.0664 B8 108 4186.0090 C8 Piano high limit 109 4434.9221 110 4698.6363 D8 111 4978.0317 112 5274.0409 E8 113 5587.6517 F8 114 5919.9108 115 6271.9270 G8 116 6644.8752 117 7040.0000 A9 118 7458.6202 119 7902.1328 B9 120 8372.0181 C9 121 8869.8442 122 9397.2726 D9 123 9956.0635 124 10548.0818 E9 125 11175.3034 F9 126 11839.8215 127 12543.8540 G9 based on and from Appendix A FREQUENCY EQUIVALENTS FOR PITCHES ON THE PIANO of "Electronic Music Synthesis: Concepts, Facilities, Techniques" by Hubert S. Howe, Jr., 1975. W.W. Norton & Company, Inc., New York page 259 The formula is to use a given known octave frequency "F" and use the relation Fn = F * 2^(n/12) to compute the ocave equal-tempered semitone frequency. http://stage.vitaminic.co.uk/bosch"; _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com --- Drum&Bass Arena Producers Discussion List http://www.breakbeat.co.uk You are currently subscribed to dnb-prod as: [email protected] To unsubscribe send a blank email to [EMAIL PROTECTED]
