Sound Synthesis via Discrete Summation Formulas: Unexplored Terrain (sounds kind of like FM) скачать в хорошем качестве

Sound Synthesis via Discrete Summation Formulas: Unexplored Terrain (sounds kind of like FM)

J.A. Moorer, The Synthesis of Complex Audio Spectra by Means of Discrete Summation Formulae: https://ccrma.stanford.edu/files/pape... Moppelsynth VSTs: https://www.verklagekasper.de/synths Support this channel via a special purpose donation to the Georgia Tech Foundation (GTF210000920), earmarked for my work:    • [OLD] Support This Channel via a Special P...   Octave code (spectrogram plotting may require tweaking to work in MATLAB): pkg load signal fs = 48000; tt = 0:1/fs:10; fc = 110; fm = 110; theta = 2*pi*fc*tt; betta = 2*pi*fm*tt; %use these lines for attack/decay envelope %a = linspace(0,0.9,floor(length(tt)/2)); %a = [a, 0.99, a(end:-1:1)]; %use this line for pure decay envelope a = linspace(0.9,0,length(tt)); % First xx formula is for upper sidebands only, second is for double sidebands %xx = (sin(theta) - a .* sin(theta-betta)) ./ (1 + a .^ 2 - 2*a .* cos(betta)); xx = (1 - a .^ 2) .* sin(theta-betta) ./ (1 + a .^ 2 - 2*a .* cos(betta)); figure(1); specgram(xx,2*4096,fs); figure(2) plot(tt,xx); soundsc(xx,fs) 0:00 -- Introduction 2:38 -- MATLAB/Octave code 5:12 -- Upper side bands 6:57 -- Division by "zero" conjecture 7:28 -- Percussive envelopes 9:28 -- Inharmonics (USB) 11:12 -- Double side band variation 13:23 -- Cancellation! 14:15 -- Inharmonics (DSB) 15:05 -- Beat patterns 16:32 -- Bandlimited formulas 18:29 -- Moppelsynths