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Convention Paper

Determination of an Effective Tone Ringer Signal

Authors: Hunt, Richard M.

AES Convention 38 · Paper 722 · May 1970

Abstract

This paper describes a study to determine a frequency spectrum for a multiple tone ringing signal which yields the maximum detectability for a given acoustic power. Measurements of pertinent noise spectra and transmission loss at telephone locations were made and compared with data in the literature. The theory of critical band masking was used to predict the detectability of telephone ringing signals in a noisy environment. It was concluded that multi tone signals in the 500-4500 Hz region can meet detectability and pleasantness requirements in present noise environments.

Details

Published in
AES Convention 38
AES Convention
38
Paper number
722
Publication date
May 6, 1970
Affiliation
Bell Telephone Laboratories, Incorporated, Indianapolis, IN (See document for exact affiliation information.)
Type
Convention Paper