Preparation of templates in speech command recognition by single- and double-channel scheme in background noise
Victor R. Krasheninnikov, Andrey I. Armer, A. V. Khvostov · Pattern Recognition and Image Analysis · 2008
One of the methods for speech command (SC) recognition against a very noisy background is to compare SCs to their templates stored in a database. There is no noise in the templates, so their pauses can be determined precisely. The recognized SCs are noisy, and their pauses are determined with errors. In recognition, the SC pauses should match the template pauses. To achieve this, it is suggested that noise be added to templates and template pauses be redetermined by the same method. This noise is taken from the second microphone located at a distance from the basic one and receiving noise clean of speech signal. Our studies have shown the proposed procedures to improve the quality of SC recognition.