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GB/T 23146-2008: Calculation of frequency of twelve-tone equal temperament and cent
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GB/T 23146-2008: Calculation of frequency of twelve-tone equal temperament and cent

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Calculation of frequency of twelve-tone equal temperament and cent ICS 97.200.20 Y58 National Standards of People's Republic of China Tempered frequency and cents calculations Posted 2008-12-30 2009-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Appendix A of this standard is a normative appendix. The standard proposed by China National Light Industry Council. This standard by the National Standardization Technical Committee instrument. This standard by Ningbosenlong Instrument Co., Ltd., Beijing Institute of Musical Instruments, National Instrument Standardization Center, Shanghai super limited dial piano Company drafted. The main drafters of this standard. Luo Jianfeng, Zhang Zhenqi, Wang Wei, Sun Zhaoping, and high. Tempered frequency and cents calculations

1 Scope

This standard specifies the frequency and method of calculation and cents terms of the tempered. This standard can be used to instrument design, manufacture and tuning musical instruments.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 3451 standard tuning frequency

3 Requirements

3.1 is a tempered octave is divided into 12 sound level that is twice the frequency between each two adjacent sound level frequency ratio. 12 Sang 2, (approximately equal to 1.059463); every two adjacent sound level difference of 100 cents. 3.2 In the small print of a set of a standard pronunciation, should meet the requirements of GB/T 3451 regulations. 3.3 tone equal temperament column order shown in Table 1. Table 1, column tempered tone sequence table Group 1 Group 2 characters characters characters group set small print small print small print Group 1 Group 2 Group 3 small print small print small print 4 Group 5 Group Musical alphabet letter name sequence number sequence number sequence number sequence number of the musical alphabet letter name note name sequence number sequence number sequence number of the musical alphabet letter name sequence number sequence number musical alphabet letter name - - 4 C1 16 C 28 c 40 c1 52 c2 64 c3 76 c4 88 c5 - - 5 # C1 17 #C 29 #c 41 # c1 53 # c2 65 # c3 77 # c4 - - - - 6 D1 18 D 30 d 42 d1 54 d2 66 d3 78 d4 - - - - 7 # D1 19 #D 31 #d 43 # d1 55 # d2 67 # d3 79 # d4 - - - - 8 E1 20 E 32 e 44 e1 56 e2 68 e3 80 e4 - - - - 9 F1 21 F 33 f 45 f1 57 f2 69 f3 81 f4 - - - - 10 # F1 22 #F 34 #f 46 # f1 58 # f2 70 # f3 82 # f4 - - - - 11 G1 23 G 35 g 47 g1 59 g2 71 g3 83 g4 - - - - 12 # G1 24 #G 36 #g 48 # g1 60 # g2 72 # g3 84 # g4 - - 1 A2 13 A1 25 A 37 a 49 a1 61 a2 73 a3 85 a4 - - 2 # A2 14 # A1 26 #A 38 #a 50 # a1 62 # a2 74 # a3 86 # a4 - - 3 B2 15 B1 27 B 39 b 51 b1 63 b2 75 b3 87 b4 - - 3.4 Conversion tone row corresponding to each letter name frequency 3.4.1 calculation by the frequency corresponding to the note name, see (1) Like -1 12 (1) Where. --- Sounds like the position in the sound column. Bit integer for the musical alphabet corresponding to the sequence number of decimal places for the sound score. Its tone is the first decimal place ...