Resume of mine study in OmSU.

1. Ilya Siganov
PhD student in Informatics
at FCS, OmSU

2. About me
● Graduated from the OmSU, FCS,
Computer Security (specialty)
● Ph.D. student in Informatics and
Computer Engineering Techniques
● Developer at 7bits

3. About supervisor
Lavrov Dmitry Nikolayevich
● Associate Professor
● PhD in Engineering Science
● Head of Department of Computer
Technologies and Networks
● Deputy Chief Editor of the journal
“Mathematical Structures and
Modeling”

4. Projects
● Flash Transmitter
● Research on security of personal data in browsers
● Audio Thermometer
● Zero knowledge proof authentication in Web applications
● Research of ability to apply “Mafia fraud attack” against WhatsApp

5. Scientific interest
● Machine learning
● Data analysis
● Artificial neural networks
● Audio analysis
● Software architecture
● Distributed systems
● Security

6. PhD topic & problems to solve
● “Cocktail party” problem - how to extract a sound object of
interest

7. PhD topic & problems to solve
● Decomposing speech of a speakers group.

8. Problem
a + b = 5
a, b - unknown values
We have to find a, b!!

9. How to solve?
How to decompose a real world sound mixture into
individual audio objects?
● Blind source separation
● Beamforming
● Combination of BSS and Beamforming
● Build artificial human-like ear
● Study how human brain does sound decomposition

10. Expectation
a + b = 5
a is probably 3
b is probably 2 or 1
We have to find a, b!!

11. Subtasks
● Develop an environment simulator (room, valley, hall, etc.)
● Determine the direction to the source-signal
● Subtract a known background sound(music) from some mix
of voice and music
● Synchronize almost the same clips but not quite
● Build a Male/Female voice recognition and classification app.
● Extract a single voice from music

12. Experiments
● Decompose linearly synthetic mixed sounds with ICA -
success
● Decompose a real mixture - fail
● Synchronize sounds of a real mixture - fail
● Cancel background music in synthetic and real mixture -
success
● Simulate sound propagation - in progress

13. Application in real life
● Dramatically improve noise suppression
● Effective sound compression
● Sound decomposition for speech recognition systems
● Environment describing software
● Subtract music from sound to avoid problems with
right-holders

14. Who need this?