Tone library generation method, sound synthesis method and system, and audio processing chip

Abstract

The invention relates to a tone library generation method, a sound synthesis method and system, an audio processing chip, a computer readable storage medium and electronic equipment, and the tone library generation method comprises the steps: firstly solving a first amplitude spectrum for a windowed sound source audio frame, and updating an average amplitude spectrum through the first amplitude spectrum, solving the similarity of each wave crest greater than an amplitude threshold value in the first amplitude spectrum and a low-pass kernel, then selecting a maximum value in a result and the corresponding low-pass kernel and local maximum wave crest to form a similar data set, and then compensating a probability value in a probability table by using the similar data set to obtain a probability value, and then finding out a central frequency point, a bandwidth and a maximum amplitude for representing the common amplitude characteristic of the sound source signal from the compensated probability table and the average amplitude spectrum. Obviously, according to the timbre library generation method, the algorithm for generating the timbre library is greatly simplified, the timbre library generation efficiency is improved, and resources can be saved.

Description

technical field [0001] The invention relates to the technical field of audio processing, and in particular designs a method for generating a timbre library, a sound synthesis method and system, an audio processing chip, a computer-readable storage medium, and electronic equipment. Background technique [0002] With the development of audio technology, more and more various sounds are synthesized, such as live sound cards, voice-changing headphones, voice-changing karaoke and other products are becoming more and more diverse. These synthesis devices need to store the timbre files of the corresponding musical instruments in the software. These Timbre files often use the cepstrum method and spectral envelope method to generate the tone library, which increases the consumption of flash and requires a large storage space. In some applications, such as real-time sound synthesis systems, the sound source signal is often directly recorded. The incoming ones need to be processed in r...

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Problems solved by technology

[0003] Based on the above-mentioned status quo, the main purpose of the present invention is to provide a method for generating a timbre library, a sound synthesis method and system, an audio processing chip, a computer-readable storage medium, and an electronic device, so as to solve the problem that existing sound synthesis devices occupy too much space. big problem

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