Course detail

Speech Signal Processing

FIT-ZREAcad. year: 2022/2023

Applications of speech processing, digital processing of speech signals, production and perception of speech, introduction to phonetics, pre-processing and basic parameters of speech, linear-predictive model, cepstrum, fundamental frequency estimation, coding - time domain and vocoders, recognition - DTW and HMM, synthesis. Software and libraries for speech processing.

Language of instruction

Czech, English

Number of ECTS credits

Mode of study

Not applicable.

Guarantor

prof. Dr. Ing. Jan Černocký

Department

Department of Computer Graphics and Multimedia (UPGM)

Learning outcomes of the course unit

The students will get familiar with basic characteristics of speech signal in relation to production and hearing of speech by humans. They will understand basic algorithms of speech analysis common to many applications. They will be given an overview of applications (recognition, synthesis, coding) and be informed about practical aspects of speech algorithms implementation. The students will be able to design a simple system for speech processing (speech activity detector, recognizer of limited number of isolated words), including its implementation into application programs.

Prerequisites

Not applicable.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Not applicable.

Assesment methods and criteria linked to learning outcomes

mid-term test 14 pts
project 29 pts
presentation of results in computer labs 6 pts

Course curriculum

Not applicable.

Work placements

Not applicable.

Aims

To provide students with the knowledge of basic characteristics of speech signal in relation to production and hearing of speech by humans. To describe basic algorithms of speech analysis common to many applications. To give an overview of applications (recognition, synthesis, coding) and to inform about practical aspects of speech algorithms implementation.

Specification of controlled education, way of implementation and compensation for absences

Not applicable.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Gold, B., Morgan, N.: Speech and Audio Signal Processing, John Wiley & Sons, 2000, ISBN 0-471-35154-7
Psutka, J.: Komunikace s počítačem mluvenou řečí. Academia, Praha, 1995, ISBN 80-200-0203-0
www stránka předmětu https://www.fit.vutbr.cz/study/courses/ZRE/public/

Type of course unit

Lecture

26 hod., optionally

Teacher / Lecturer

prof. Dr. Ing. Jan Černocký

Syllabus

Introduction, applications of speech processing.
Digital processing of speech signals.
Speech production and its signal processing model.
Pre-processing and basic parameters of speech, cepstrum.
Linear-predictive model.
Fundamental frequency estimation.
Speech coding - basics
CELP Speech coding.
Speech recognition - basics, DTW.
Hidden Markov models HMM.
Large vocabulary continuous speech recognition (LVCSR) systems.
Speaker and language recognition. Neural networks in speech processing.
Text to speech synthesis.

Fundamentals seminar

2 hod., compulsory

Teacher / Lecturer

prof. Dr. Ing. Jan Černocký

Syllabus

Parameterization, DTW, HMM.

Exercise in computer lab

12 hod., compulsory

Teacher / Lecturer

prof. Dr. Ing. Jan Černocký

Syllabus

Except the last one, Matlab is used in labs.

Introduction.
Linear prediction and vector quantization.
Fundamental frequency estimation and speech coding.
Basics of classification.
Recognition - Dynamic time Warping (DTW).
Recognition - hidden Markov models (HTK).

Project

12 hod., compulsory

Teacher / Lecturer

prof. Dr. Ing. Jan Černocký

Elearning

eLearning: currently opened course

VUT

Faculties

University Institutes

Parts

Speech Signal Processing

Type of course unit