Publication

Combining the SNR Spectrum with a Cochlear Model

2018
Reports

Abstract

The SNR spectrum was previously introduced as a natural consequence of using cepstral normalisa- tion in speech recognition; it is closely related to the articulation index of Fletcher. Motivated initially by a theoretical difficulty in frequency warping, the SNR spectrum is combined with a cochlear model, yielding a theoretically sound yet simple noise robust feature. Two time-domain cochlear model imple- mentations, representing different recursive approximations, are compared. The combination of SNR spectrum, cochlear model, perceptual linear prediction and cepstral normalisation leads to an intuitive, efficient and effective feature that is mostly physiologically plausible.

Official source

https://infoscience.epfl.ch/entities/publication/eab3b002-2f6e-4344-93e3-19d937e4304f

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2018
Reports

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/eab3b002-2f6e-4344-93e3-19d937e4304f

About this result

Related concepts (31)

Speech processing

Speech processing is the study of speech signals and the processing methods of signals. The signals are usually processed in a digital representation, so speech processing can be regarded as a special case of digital signal processing, applied to speech signals. Aspects of speech processing includes the acquisition, manipulation, storage, transfer and output of speech signals. Different speech processing tasks include speech recognition, speech synthesis, speaker diarization, speech enhancement, speaker recognition, etc.

Speech recognition

Speech recognition is an interdisciplinary subfield of computer science and computational linguistics that develops methodologies and technologies that enable the recognition and translation of spoken language into text by computers. It is also known as automatic speech recognition (ASR), computer speech recognition or speech to text (STT). It incorporates knowledge and research in the computer science, linguistics and computer engineering fields. The reverse process is speech synthesis.

Place of articulation

In articulatory phonetics, the place of articulation (also point of articulation) of a consonant is a location along the vocal tract where its production occurs. It is a point where a constriction is made between an active and a passive articulator. Active articulators are organs capable of voluntary movement which create the constriction, while passive articulators are so called because they are normally fixed and are the parts with which an active articulator makes contact.

Related publications (5)

Combining the SNR Spectrum with a Cochlear Model

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Combining vocal tract length normalization with hierarchial linear transformations

Unsupervised Speech/Non-speech Detection for Automatic Speech Recognition in Meeting Rooms

Speech Coding based on Spectral Dynamics