Title
Psycho-acoustics inspired automatic speech recognition
Abstract
AbstractAbstractUnderstanding the human spoken language recognition process is still a far scientific goal. Nowadays, commercial automatic speech recognisers (ASRs) achieve high performance at recognising clean speech, but their approaches are poorly related to human speech recognition. They commonly process the phonetic structure of speech while neglecting supra-segmental and syllabic tracts integral to human speech recognition. As a result, these ASRs achieve low performance on spontaneous speech and require enormous costs to build up phonetic and pronunciation models and catch the large variability of human speech. This paper presents a novel ASR that addresses these issues and questions conventional ASR approaches. It uses alternative acoustic models and an exhaustive decoding algorithm to process speech at a syllabic temporal scale (100–250 ms) through a multi-temporal approach inspired by psycho-acoustic studies. Performance comparison on the recognition of spoken Italian numbers (from 0 to 1 million) demonstrates that our approach is cost-effective, outperforms standard phonetic models, and reaches state-of-the-art performance.Highlights •We propose a novel Automatic Speech Recognizer inspired by psycho-acoustic studies.•It embeds multiple-time scale speech processing inspired to human speech processing.•Its optimal architecture uses an LSTM-based acoustic model and 1h training audio.•It has comparable performance to conventional ASRs on 1-million numbers recognition.
Year
DOI
Venue
2021
10.1016/j.compeleceng.2021.107238
Periodicals
Keywords
DocType
Volume
Automatic speech recognition, Deep learning, Long short term memory, Convolutional neural networks, Factorial hidden Markov models, Hidden Markov models, Speech, Psycho-acoustics, Syllables
Journal
93
Issue
ISSN
Citations 
C
0045-7906
1
PageRank 
References 
Authors
0.43
0
4
Name
Order
Citations
PageRank
Gianpaolo Coro110.43
Fabio Valerio Massoli2113.98
Antonio Origlia310.43
Francesco Cutugno410.43