6 ECTS credits
175 h study time

Offer 1 with catalog number 4005036ENR for all students in the 2nd semester at a (E) Master - advanced level.

Semester
2nd semester
Enrollment based on exam contract
Impossible
Grading method
Grading (scale from 0 to 20)
Can retake in second session
Yes
Taught in
Dutch
Faculty
Faculty of Engineering
Department
Electronics and Informatics
Educational team
Werner Verhelst (course titular)
Activities and contact hours

36 contact hours Lecture
24 contact hours Seminar, Exercises or Practicals
24 contact hours Independent or External Form of Study
Course Content
Part Digital Speech Processing
H1. Theories and models of speech
. Speech Production
. Phones: the sounds of speech
. Prosody
. Acoustic model
. Digital source-filter model
H2. Speech analysis techniques
. short-time analysis principle
. ST Fourier transformation
. Linear predictive analysis
H3. Speech coding
. LPC analysis en resynthesis
. Coding
H4. Speech synthesis
. Concatenation techniques
. Prosodic modules
. Linguistic modules
H5. Speech recognition
. Pattern matching
. HMM and Viterbi allignment
. Adaptation and Wordspotting
. Robustness

Part Digital Audio Processing
The course consists of two logical parts. Part one deals with signal processing for recording, distribution and playback of audio. Part two studies signal processing for sound analysis, sound effects generation and sound synthesis.

Part 1. Recording, Distribution and Playback.
1.1. Elements of psycho-acoustics
Covers topics such as functioning of the human ear, pitch sensation, temporal and spectral masking,
1.2. Digital recording and playback
Pays special attention to aspects of bandwidth, quantization noise and distortion, and signal dynamics. Topics covered include: ADC, DAC, oversampling, sinc compensation, dynamics processors, dither,
1.3. Audio Coding
Topics include losless compression, lossy compression (MP3,), research topics.
Part 2. Analysis, Sound effects, and Synthesis
2.1. Spectral techniques
Music filters and equalisers, audio analysers, reverb equipment are some examples.
2.2. Time Varying Signal Processing techniques
Considers the time-varying delay effects, such as chorus/flange and phasing.
2.3. Principles of synthesis
Three main classes are considered: production model based, perception model based, and sample based synthesis (wavetable synthesis).


Course material
Course text (Required) : Digitale spraak- en audiobewerking, Kopies eigen nota's
Handbook (Recommended) : Discrete-Time Processing of Speech Signals, Deller, Proakis, Hansen, MacMillan, 9780780353862, 1999
Additional info
Copies of presentations and some research papers.

Complementary study material:

Deller, Proakis, Hansen, Discrete-Time Processing of Speech Signals,
MacMillan
Learning Outcomes

General competencies

Part Digital Speech Processing
-aims and objectives :
We deal with the theory underlying the most important applications of speech technology, especially analysis, synthesis amd coding. The aim is to provide an introduction in speech-technological components of multi-media, telecommunications and man-machine communications.
-exam requirements :
The techniques introduced in the course and their speech technological applications.

Part Digital Audio Processing
Aims:

Worldwide, the audio industry represents an important economic factor with a tremendous social impact. Partly as a concequence of the widespread use of telecommunication means, such as the internet and wireless mobile communication, the audio industry has rapidly experienced a virtually complete digitization. This encompasses a.o. fully digital studio's, perceptual coding techniques, sound generation and editing.

In this course, the signal processing aspects of audio are studied. The course evolves around a number of focal points and recent developments in the field. The topics listed below can be viewed as a menu from which items are sampled.

Grading

The final grade is composed based on the following categories:
Oral Exam determines 100% of the final mark.

Within the Oral Exam category, the following assignments need to be completed:

  • Oral exam with a relative weight of 1 which comprises 100% of the final mark.

Additional info regarding evaluation
Oral examination
Allowed unsatisfactory mark
The supplementary Teaching and Examination Regulations of your faculty stipulate whether an allowed unsatisfactory mark for this programme unit is permitted.

Academic context

This offer is part of the following study plans:
Master of Biomedical Engineering: Standaard traject (only offered in Dutch)