Graduate School of Language Technology

Nordic Graduate School of Language Technology

Speech Technology Level 1 (2007)


The class is organized by

Rolf Carlson rolf at (Responsible for the class)
Mats Blomberg matsb at
Kjell Elenius kjell at
Björn Granström bjorn at
Joakim Gustafson jocke at
David House davidh at
Alec Seward alec at

KTH, CSC, Dept. Speech, Music and Hearing, Stockholm, Sweden


The start of the class will be in Göteborg September 11, 2007 followed by one meeting 15/10-16/10 and closing seminar in January 2008 both in Stockholm.



The aim of this course is to give an overview of speech technology, some of the underlying theories and models and how these are integrated into applications, such as multimodal dialog systems.


The course is intended for both students with a limited knowledge of the field and for students with a more extensive background in speech technology. The students will be expected to take a more active part in the discussion of current research. The course is also meant to contribute to the common platform for students with different backgrounds in the Nordic graduate school of language technology supported by NorFA.


The course is divided into 5 parts:

1. Introductory lectures
2. Reading the listed material
3. Individual practical exercises
4. Preparing a term paper
5. Closing seminar including discussions, practical exercises and presentation of the term papers.


Introductory lectures will give an overview of the field with an emphasis on basic concepts and standard methods.


Individual practical exercises will include speech analysis and specific tasks related to speech technology. The results should be reported and discussed during the fall period.


During the course a term paper should be prepared by each student. The paper should be presented during the closing seminar in January (Stockholm). The closing seminar includes: Exercises, Presentation of term papers, and Discussion of the reading material and the term papers.



Introductory lecture slides will be linked to each topic.






Room C430



Acoustic Phonetics

David House


Room C430

Multimodal speech Synthesis

Björn Granström



Phonetic practical exercise due

David House


Fantum, TMH, KTH, Stockholm



Speech and Speaker Recognition
Dialog system
Phonetic Analysis

Kjell Elenius
Mats Blomberg
Rolf Carlson
Björn Granström
Joakim Gustafson
David House
Alec Seward

January 16

Fantum, TMH, KTH, Stockholm

Closing seminar

All teachers


 Individual practical exercises

Phonetic analysis: Each student should carry out an acoustic investigation of their own speech. This exercise will make the student familiar with speech analysis and the basic structure of speech sounds. The results should be summarised and sent to David House. The practical exercise will be discussed by all students during the second meeting 15-16/10.
More information here

During the second meeting and the closing seminar additional obligatory exercises on speech recognition and multimodal speech synthesis will be included.

Solutions to at least three questions in the Speech Recognition exercises should be submitted to Mats Blomberg before December 1.

 Term paper

During the course a term paper should be prepared by each student and reviewed by two other students. The paper should be presented during the closing seminar.

More information here

Closing seminar

The closing seminar includes: Presentation of term papers; Discussion of the reading material and the term papers.

More information here

Reading material

Acoustic and Auditory Phonetics, Keith Johnson, ISBN# 0-631-20094-0 (a second edition is also available)

An Introduction to Text-To-Speech Synthesis, Thierry Dutoit, ISBN# 0-7923-7923-4498-7

Holmes, John and Wendy Holmes (2001 2nd): Speech Synthesis and Recognition, London: Taylor & Francis, ISBN 0-7484-0856-8 (hardback), ISBN 0-7484-0857-6 (paperback)

Michael F McTear (2002) Spoken dialogue technology: enabling the conversational interface. ACM Computing Surveys, Volume 34 , Issue 1 (March 2002), pp. 90 - 169.

Additional papers

A selection of papers and other publications will be used as additional reading material for each subtopic. More information here


In order to pass the course the students must: Complete the practical exercises; Prepare and present the term paper; Review two term papers; Participate actively in the discussions in the closing seminar.


Links to earlier Speech Technology 1:  2001, 2002, 2004, 2005, 2006


Last updated: January 7, 2008