Speaker-Machine Interaction in a Limited Speech Recognition System
John I. Makhoul · The Journal of the Acoustical Society of America · 1970
The performance of a speaker-independent limited speech recognition system for adult male and female speakers is examined. In cases of incorrect recognition, on the basis of results, the speaker is instructed to change his articulation to effect correct recognition. Methods of changes in articulation and the effects they have on recognition performance are discussed. The vocabulary used consists of 55 /əCVd/ syllables, where C is one of six stop and five fricative consonants, and V is one of five tense vowels. The recognition depends on the extraction of several acoustic features. The positions of spectral energy concentrations are determined and their relative movements are tracked, especially along the CV transitions. [This work was supported in part by grants from the National Institutes of Health.]