Cited by 132Speech Recognition and SynthesisSpeech and Audio ProcessingSpeech and dialogue systems

Interacting with computers by voice: automatic speech recognition and synthesis

O'Shaughnessy, D.·2003·Proceedings of the IEEE

Abstract

This paper examines how people communicate with computers using speech. Automatic speech recognition (ASR) transforms speech into text, while automatic speech synthesis [or text-to-speech (TTS)] performs the reverse task. ASR has been largely developed based on speech coding theory, while simulating certain spectral analyses performed by the ear. Typically, a Fourier transform is employed, but following the auditory Bark scale and simplifying the spectral representation with a decorrelation into cepstral coefficients. Current ASR provides good accuracy and performance on limited practical tasks, but exploits only the most rudimentary knowledge about human production and perception phenomena. The popular mathematical model called the hidden Markov model (HMM) is examined; first-order HMMs are efficient but ignore long-range correlations in actual speech. Common language models use a time window of three successive words in their syntactic-semantic analysis. Speech synthesis is the automatic generation of a speech waveform, typically from an input text. As with ASR, TTS starts from a database of information previously established by analysis of much training data, both speech and text. Previously analyzed speech is stored in small units in the database, for concatenation in the proper sequence at runtime. TTS systems first perform text processing, including "letter-to-sound" conversion, to generate the phonetic transcription. Intonation must be properly specified to approximate…

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Authors
O'Shaughnessy, D.
Venue
Proceedings of the IEEE
Published
2003-09
Volume
91
Issue
9
Pages
1272-1305
ISSN
0018-9219 (ISSN-L)
OpenAlex
W2001537489
Cited by
132
References
295
Citations by year
2026: 3 · 2025: 6 · 2024: 8 · 2023: 9 · 2022: 9 · 2021: 3 · 2020: 6 · 2019: 4 · 2018: 5 · 2017: 2 · 2016: 7 · 2015: 7 · 2014: 8 · 2013: 9 · 2012: 4
FWCI
3.91
Type
journal article
Language
en
Open access
closed
Locations
Proceedings of the IEEE (publishedVersion)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Speech Recognition and Synthesis
  • Physical Sciences › Computer Science › Signal Processing › Speech and Audio Processing
  • Physical Sciences › Computer Science › Artificial Intelligence › Speech and dialogue systems
Keywords
speech recognition, text-to-speech, speech coding, cepstral coefficients, hidden Markov models, language models, phonetic transcription, intonation, speech perception

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