Time domain audio panner

Details Time domain audio panner Time domain audio panner

1983-07-25

1985-04-02

Hickey, R. J.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

360 32, 369 5, G11B 1300

Patent

active

045091854

ABSTRACT:
A time domain panner samples a single analogue audio input signal and digitizes it into a 16-bit linear PCM representation which is fed into a memory array having a plurality of memory locations. A multiplexer feeds this memory array and continuously cycles in response to an address counter which repetitively counts to a maximum count. Address words produced by the address counter may address the array with or without add words, and a selected channel of the multiplexer points to a value stored in the memory array at a location established by the address counter plus an offset. Analogue output signals provided from left and right analogue output channels are time shifted selectively with respect to the analogue input signal and with respect to each other. Accordingly, analogue audio input signals are provided by a single signal source, fed into a memory array, and left and right analogue output channels are time-shifted with respect to the input excitement, and with respect to each other.

REFERENCES:
patent: 3295107 (1966-12-01), Stalcup
patent: 3949175 (1976-04-01), Tanizoe et al.
patent: 4065795 (1977-12-01), Shutterly
patent: 4206476 (1980-06-01), Hashimoto
"Digital Audio System for Professional Use", by Matsushima et al., National Technical Report (Japan), vol. 26, No. 6, Dec. 1980, pp. 938-946.

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