一、簡介
在MATLAB中撰寫的VST 2音頻效果插件，使用遺傳演算法生成描述人工房間混響的隨機脈沖回應，并使用脈沖回應對信號實時應用卷積混響，還提供了一個MATLAB腳本（main.m），接受WAV音頻檔案作為輸入，通過卷積將輸入與脈沖回應結合起來，將混響效果應用于預錄制的音頻，由于沒有任何兩個脈沖回應是相同的，所以腳本和插件也可以將生成的脈沖回應保存到新檔案中，
二、源代碼
%
% BSD 3-Clause License
%
%% Preamble
% Clear workspace and figures
clear; close all;
% Add paths to any external functions used
addpath ../components
%% Output Parameters
NORMALIZE_AUDIO = true; % Normalize audio after applying reverb
VERBOSE = true; % Display genetic algorithm status messages
SHOW_FIGURES = true; % Display figures plotting IR and output audio
%% Genetic Algorithm Parameters
% POPULATION_SIZE = Number of impulse responses in population
% SELECTION_SIZE = Number of impulse responses to keep in each generation
% NUM_GENERATIONS = Maximum number of generations to run in the algorithm
% PLATEAU_LENGTH = If there is no new best impulse response after some number
% of generations, stop early
% FITNESS_THRESHOLD = If fitness value is below threshold value, stop early
% MUTATION_RATE = Probability of each sample in impulse response randomly
% changing value in each generation
gaParams = struct( ...
'POPULATION_SIZE', 50, ...
'SELECTION_SIZE', 20, ...
'NUM_GENERATIONS', 250, ...
'PLATEAU_LENGTH', 50, ...
'FITNESS_THRESHOLD', 0.001, ...
'MUTATION_RATE', 0.001);
%% Impulse Response Parameters
% SAMPLE_RATE = Sample rate of impulse response (Hz)
% NUM_SAMPLES = Number of samples in IR to record / length of IR
% PREDELAY = Delay time before onset of first early reflection (samples)
% T60 = Total reverberation time (s)
% EDT = Early decay time (s)
% C80 = Clarity, or relative loudness of early reverberations over
% late reverberations (dB)
% BR = Warmth vs. brilliance, calculated as "bass ratio" (ratio of
% low frequency to high frequency content) (dB)
end
三、運行結果
四、備注
完整代碼或者代寫添加QQ912100926，
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