Opens in a new tab

AES E-Library

← Back to search

Convention Paper

A Real-Time Multipartial Waveform Analyzer-Synthesizer

Authors: Luce, David; Clark, Jr., Melville

AES Convention 35 · Paper 611 · October 1968

Abstract

A real-time analyzer-synthesizer is described that can process complex signals whose waveforms change with time to the limits of the uncertainty principle. Overlap integrals betwen the input signal and user-selected basis functions are automatically recorded (during analysis) on or read from (during synthesis) film. Special converters permit using trigonometric amplitudes and phases for analysis and synthesis. Frequency tracking uses a coherence detector to distinguish signals to which a frequency may be ascribed from noise. Various constant fractional or constant absolute bandwidths may be selected. The synthesizer may work with user-provided graphs any of these curves and those on the film may be used as the modulation function for any selected basis functions.

Details

Published in
AES Convention 35
AES Convention
35
Paper number
611
Publication date
October 6, 1968
Affiliation
Melville Clark Associates, Cochituate, MA (See document for exact affiliation information.)
Type
Convention Paper