Musical scale generating method in music synthesis
A technique for generating methods and scales, applied in speech synthesis, speech analysis, electro-acoustic musical instruments, etc., and can solve the problems of difficulty in expansion, cumbersomeness, and inconvenience in reading dictionaries.
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[0024] Based on a musical scale, the ranks of several notes arranged in order of high and low on the staff, until the high octave, become the so-called musical scale. In each octave, there are five whole tones and two semitones, which is the so-called "diatonic scale", that is, each octave contains twelve semitones.
[0025] The musical scale has a specific frequency. According to the current general music standard, the A4 standard tone (that is, the scale of La) in the scale where the central C4 (Do) is located is defined as 440 Hz. This frequency defines the frequency of other scales. . The relationship is that for the same scale, raising an octave will double the audio frequency, and a lower octave will halve the audio frequency; each scale in the same octave is divided by ratio, since there are twelve semitones in an octave, each Raise half a scale, frequency raise 2 1 / 12 . Therefore, the audio frequency of each scale of the central scale is 262Hz for Do (C4), 394Hz for Re (D4...
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