A spoken digit recognizer for Japanese has been designed and constructed. A set of eight features (concerned chiefly with the formant structure) which appear to characterize the individual spoken digits most efficiently has been determined by examining sound-spectrograms of typical utterances. Recognition is performed based on the Bayes decision rule applied to this set of features. The extraction of the features and the decision-making are carried out by fully transistorized circuits. Although the circuits are relatively simple, results of 99.7 percent for 1000 utterances of 20 male speakers were obtained.

Authors: Nagata, Kuniichi; Kato, Yasuo; Chiba, Seibi
Affiliation: Communications Research Laboratory, Nippon Electric Company, Kawasaki, Japan
AES Convention: 16 (October 1964) Paper Number: 347
Publication Date: October 1, 1964 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=603

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes7)   /pp5768/pp6410/0321.pdf

Start a discussion about this paper!