Tone quality synthesizing algorithm of simplified wide acoustic range

Abstract

The invention relates to a simplified synthesis algorithm for wide-range timbres, which is in particular applicable to occasions where low-end audio equipment has a higher demand for timbres and volume ranges. The synthesis algorithm comprises the following steps of establishing a sound source wavetable, establishing a sound source frequency-conversion table and synthesizing timbres. The sound source wavetable is from a timbre sample when the musical instrument has a playing gene frequency of 440.00 Hz and is saved in the equipment memory in the form of a dimensional array. The sound source frequency-conversion table is based on the musical tone with a gene frequency of 440.00 Hz and the basic tone frequency for other pitches is made relatively to the gene tone of 440.00 Hz required by the well-tempered clavier. For timbre synthesizing, the low-end audio equipment adopting the simplified synthesis algorithm for wide-range timbres achieves timbre synthesis based on the sound source wavetable in the memory, according to the timbre-synthesizing rules and referring to the converted quantity of the sound source frequency-conversion table.

Description

technical field [0001] The invention relates to a simplified wide-range timbre synthesis algorithm, which is especially suitable for occasions requiring high timbre and range in low-end audio equipment. Background technique [0002] Wide-range timbre synthesis technology is widely used in high-end digital music synthesizers. As an indispensable part of electronic musical instruments, it has achieved rapid development in recent years. However, the timbre synthesis technology in low-end audio equipment cannot adopt the mature method in high-end digital music synthesizers because of the limitation of device cost. [0003] Wavetable synthesis is commonly used in high-end digital music synthesizers. The feature of this technology is to use the timbre from real musical instrument performance as the timbre library, and the restored musical tone effect can be comparable to that of real musical instrument performance, but the huge timbre library cannot be stored in low-end digital a...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the defects in the prior art and provide a simplified wide-range timbre synthesis algorithm, which can enable low-cost audio equipment to produce full-range, 88-scale timbre output, and make up for the synthesis of timbres in existing low-end audio equipment. Monotonous, lack of wide range

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