ESCA Tutorial and Research Workshop on
Speech Input/Output Assessment and Speech Databases

Noordwijkerhout, The Netherlands
September 20-23, 1989

Speech Database Development: Design and Analysis of the Acoustic-Phonetic Corpus

Lori F. Lamel, Robert H. Kassel, Stephanie Seneff

Department of Electrical Engineering and Computer Science, and Research Laboratory of Electronics, Massachnsetts Institute of Technology, Cambridge, Massachusetts, USA

The need for a comprehensive, standardized speech database is threefold: first, to acquire acoustic-phonetic knowledge for phonetic recognition; second, to provide speech for training recognizers; and third, to provide a common test base for the evaluation of recognizers. There are many factors to consider in corpus design, making it impossible to provide a complete database for all potential users. It is possible, however, to provide an acceptable database that can be extended to meet future needs. After much discussion among several sites, a consensus was reached that the initial acoustic-phonetic corpus should consist of calibration sentences, a set of phonetically compact sentences, and a large number of randomly selected sentences to provide contextual variation. The database design has been a joint effort including MIT, SRI, and TL This paper describes MIT's role in corpus development and analyses of the phonetic coverage of the complete database. We also include a description of the phonetic transcription and alignment procedure.

Full Paper

Bibliographic reference.  Lamel, Lori F. / Kassel, Robert H. / Seneff, Stephanie (1989): "Speech database development: design and analysis of the acoustic-phonetic corpus", In SIOA-1989, Vol.2, 161-170.