Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing

GPHYSICS G10Musical instruments G10HELECTROPHONIC MUSICAL INSTRUMENTS

G10H2250/00Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing

G10H2250/005Algorithms for electrophonic musical instruments or musical processing G10H2250/011Genetic algorithms, i.e. using computational steps analogous to biological selection, recombination and mutation on an initial population of G10H2250/015Markov chains G10H2250/021Dynamic programming G10H2250/025Envelope processing of music signals in G10H2250/031Spectrum envelope processing G10H2250/035Crossfade, i.e. time domain amplitude envelope control of the transition between musical sounds or melodies, obtained for musical purposes G10H2250/041Delay lines applied to musical processing G10H2250/046with intermediate taps G10H2250/051with variable time delay or variable length G10H2250/055Filters for musical processing or musical effects Filter responses, filter architecture, filter coefficients or control parameters therefor G10H2250/061Allpass filters G10H2250/065Lattice filter, Zobel network, constant resistance filter or X-section filter G10H2250/071All pole filter G10H2250/075All zero filter G10H2250/081Autoregressive moving average [ARMA] filter G10H2250/085Butterworth filters G10H2250/091Chebyshev filters G10H2250/095Filter coefficient interpolation G10H2250/101Filter coefficient update Adaptive filters G10H2250/105Comb filters G10H2250/111Impulse response, i.e. filters defined or specifed by their temporal impulse response features G10H2250/115FIR impulse G10H2250/121IIR impulse G10H2250/125Notch filters G10H2250/131Mathematical functions for musical analysis, processing, synthesis or composition G10H2250/135Autocorrelation G10H2250/141Bessel functions G10H2250/145Convolution G10H2250/151Fuzzy logic G10H2250/155Graham function, i.e. mathematical description of the fluid dynamics of air flowing through a gap, where there is a given pressure differential on either side of the gap G10H2250/161Logarithmic functions, scaling or conversion G10H2250/165Polynomials, i.e. musical processing based on the use of polynomials G10H2250/171Hermite polynomials G10H2250/175Jacobi polynomials of several variables G10H2250/181Gegenbauer or ultraspherical polynomials G10H2250/185Legendre polynomials G10H2250/191Chebyshev polynomials G10H2250/195Lagrange polynomials G10H2250/201Parabolic or second order polynomials, occuring G10H2250/205Third order polynomials, occuring G10H2250/211Random number generators, pseudorandom generators, classes of functions therefor G10H2250/215Transforms G10H2250/221Cosine transform DCT [discrete cosine transform] G10H2250/225MDCT [Modified discrete cosine transform] G10H2250/231Fermat transform G10H2250/235Fourier transform Discrete Fourier Transform [DFT] Fast Fourier Transform [FFT] G10H2250/241Hadamard transform, Walsh-Hadamard transform, Hadamard-Rademacher-Walsh transform, Walsh transform, or Walsh-Fourier transform G10H2250/245Hartley transform, Discrete Hartley transform [DHT] Fast Hartley transform [FHT] G10H2250/251Wavelet transform, i.e. transform with both frequency and temporal resolution G10H2250/255Z-transform G10H2250/261Window G10H2250/265Blackman Harris window G10H2250/271Chebyshev window G10H2250/275Gaussian window G10H2250/281Hamming window G10H2250/285Hann or Hanning window G10H2250/291Kaiser windows Kaiser-Bessel Derived [KBD] windows G10H2250/295Noise generation, its use, control or rejection for music processing G10H2250/301Pink 1/? noise or flicker noise G10H2250/305Noise or artifact control in electrophonic musical instruments G10H2250/311Neural networks for electrophonic musical instruments or musical processing G10H2250/315Sound category-dependent sound synthesis processes [Gensound] for musical use Sound category-specific synthesis-controlling parameters or control means therefor G10H2250/321Gensound animals G10H2250/325Birds G10H2250/331Ducks G10H2250/335Sea birds G10H2250/341Cats G10H2250/345Cattle G10H2250/351Dogs G10H2250/355Elk or other animals in the Cervidae family G10H2250/361Insects G10H2250/365Gensound applause G10H2250/371Gensound equipment, i.e. synthesizing sounds produced by man-made devices G10H2250/375Harbour, i.e. sounds which are part of a harbour soundscape G10H2250/381Road, i.e. sounds which are part of a road, street or urban traffic soundscape G10H2250/385Train, i.e. sounds which are part of a railroad soundscape G10H2250/391Gensound footsteps G10H2250/395Gensound nature G10H2250/401Crowds G10H2250/405Fire G10H2250/411Water G10H2250/415Weather G10H2250/421Rain G10H2250/425Thunder G10H2250/431Natural aerodynamic noises G10H2250/435Gensound percussion, i.e. generating or synthesising the sound of a percussion instrument Control of specific aspects of percussion sounds G10H2250/441Gensound string G10H2250/445Bowed string instrument sound generation, controlling specific features of said sound G10H2250/451Plucked or struck string instrument sound synthesis, controlling specific features of said sound G10H2250/455Gensound singing voices, i.e. generation of human voices for musical applications, vocal singing sounds or intelligible words at a desired pitch or with desired vocal effects G10H2250/461Gensound wind instruments G10H2250/465Reed instrument sound synthesis, controlling specific features of said sound G10H2250/471General musical sound synthesis principles G10H2250/475FM synthesis G10H2250/481Formant synthesis, i.e. simulating the human speech production mechanism by exciting formant resonators G10H2250/485Formant correction therefor G10H2250/491Formant interpolation therefor G10H2250/495Use of noise in formant synthesis G10H2250/501Formant frequency shifting, sliding formants G10H2250/505Parcor synthesis, i.e. music synthesis using partial autocorrelation techniques G10H2250/511Physical modelling or real-time simulation of the acoustomechanical behaviour of acoustic musical instruments using G10H2250/515Excitation circuits or excitation algorithms therefor G10H2250/521Closed loop models therefor G10H2250/525Pluridimensional array-based models therefor G10H2250/531Room models, i.e. acoustic physical modelling of a room G10H2250/535Waveguide or transmission line-based models G10H2250/541Details of musical waveform synthesis G10H2250/545Aliasing, i.e. preventing, eliminating or deliberately using aliasing noise, distortions or artifacts in sampled or synthesised waveforms G10H2250/551Waveform approximation G10H2250/555Piecewise linear waveform approximation G10H2250/561Parabolic waveform approximation G10H2250/565Polynomial waveform approximation G10H2250/571Waveform compression, adapted for music synthesisers, sound banks or wavetables G10H2250/575Adaptive MDCT-based compression G10H2250/581Codebook-based waveform compression G10H2250/585CELP [code excited linear prediction] G10H2250/591DPCM [delta pulse code modulation] G10H2250/595ADPCM [adaptive differential pulse code modulation] G10H2250/601Compressed representations of spectral envelopes G10H2250/605Dynamic range companding algorithms G10H2250/611Waveform decimation, i.e. integer division of the sampling rate for reducing the number of samples in a discrete-time signal G10H2250/615Waveform editing G10H2250/621Waveform interpolation G10H2250/625Interwave interpolation, i.e. interpolating between two different waveforms G10H2250/631Waveform resampling G10H2250/635Waveform resolution or sound quality selection G10H2250/641Waveform sampler G10H2250/645Waveform scaling