TREA

Instruments in which the tones are synthesised from a data store

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Industry

  • CPC
  • G10H7/00
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Parent Industries

GPHYSICS G10Musical instruments G10HELECTROPHONIC MUSICAL INSTRUMENTS

Current Industry

G10H7/00Instruments in which the tones are synthesised from a data store

Sub Industries

G10H7/002using a common processing for different operations or calculations, and a set of micro-instructions (programme) to control the sequence thereof G10H7/004with one or more auxiliary processor in addition to the main processing unit G10H7/006using two or more algorithms of different types to generate tones G10H7/008Means for controlling the transition from one tone waveform to another G10H7/02in which amplitudes at successive sample points of a tone waveform are stored in one or more memories G10H7/04in which amplitudes are read at varying rates G10H7/045using an auxiliary register or set of registers G10H7/06in which amplitudes are read at a fixed rate, the read-out address varying stepwise by a given value G10H7/08by calculating functions or polynomial approximations to evaluate amplitudes at successive sample points of a tone waveform G10H7/10using coefficients or parameters stored in a memory G10H7/105using Fourier coefficients G10H7/12by means of a recursive algorithm using one or more sets of parameters stored in a memory and the calculated amplitudes of one or more preceding sample points
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