This document provides a summary of Sergei Aleinik's work experience and qualifications. It outlines over 20 years of experience in signal processing, C/C++ programming, statistical analysis, and developing audio processing algorithms. Key areas of expertise include signal processing, adaptive filtering, speech recognition, and statistical modeling. Recent work involves developing algorithms for microphone arrays, noise suppression, and acoustic signal processing as a research scientist at ITMO University in St. Petersburg, Russia.

1. SERGEI ALEINIK
Location: Stachek-105-2-836, St.Petersburg, 198303, Russia E-mail: sergealeinik@gmail.com
Mobile: +7 (921) 583 0168
Home: +7 (812) 753 0413
OBJECTIVE
Signal processing scientist, Microphone array processing scientist, Audio signal processing algorithms
developer, C/C++ Software engineer (algorithms development).
HIGHLIGHTS AND SUMMARY
• Over 20 years of experience in the Digital signal processing, C/C++ programming, Statistical data
processing, Spectral Analysis (FFT algorithms application, etc.), Data Filtering, Microphone Arrays,
Adaptive signal processing, Mathematical statistics, as well as scientific programming in Speech
technology, Noise suppression, Spectral analysis, Forecasting, Event detection, etc.
• More than 20 scientific articles published (see bottom of this CV).
• Seven inventions (patents granted: Noise suppression, Signal processing, Computers, etc.).
EXPERT IN: Signal processing, Filtration, Adaptive processing, C/C++ programming, Applied statistics,
Spectral analysis, Speech recognition technique, Statistical simulation, Experimental time series processing.
EXPERIENCE
April 2011 – Currently employed
Company STS Innovations / ITMO University. St. Petersburg, Russia
Position Research Scientist, Lead engineer.
Responsibilities
• New algorithms created in the area of Microphone arrays for speech processing, Noise
Suppression, Acoustic signal processing, etc .
• Adaptive signal processing (prediction filters in time and frequency domain), Wiener filtering.
• Algorithms for Feature and Event detection.
• Filtration, Spectral analysis algorithms.
July 2002 – April 2011
Company Ectaco-RD, LLC. (Speech recognition group), St.Petersburg, Russia
Position Senior Software engineer - Mathematician
Responsibilities
• New speech recognition technologies (new algorithms and C/C++ realization).
• Created Voice activity detector - robust to input signal level, detects speech in real noise
environment. Stable detection for Speech to Noise ratio down to –9 dB.
• Developed Adaptive speech restoring filter (C++ class). Filter characteristics are variated according
to speech signal distortion with the aim to restore pure speech signal.
• Created Speech visualizer – C library for artistic speech signal visualization.
• Provided statistical simulation and investigation of the different speech recognition algorithms.
• Developed algorithms and software for noise modelling and suppression.
• Provided statistical simulation of speech recognition process in noise environment.

2. March 2001 - March 2002
Company VIVA networks AB. (Swedish company, representatives in St.Petersburg, Russia)
Position Software engineer
Responsibilities
• Developed various applications for the Internet, inter process communication, etc.
• Pocket computer databases interface.
• Created system applications for pocket computers and IBM PC:
• File manager - control program for starting, deleting, moving, displaying and installation of
applied applications on pocket computer.
• Programs for communication and transferring files from pocket computer to PC and back.
• Libraries for fast work with pocket computer's databases and memory.
July 1999 - February 2001
Company Titan Technology LLC. (St.Petersburg, Russia)
Position Software engineer - Statistician
Responsibilities
• Created new algorithms and software for computer speech recognition systems.
• Developed computer neural net and program to simulate neural net as a speech recognition device.
• Created new algorithms and software for detection of human speech from the different office noises:
knocks on table, claps, human cough, door knocks, telephone bells.
• Created adaptive nonlinear filter for car noise suppression. Created program and investigated the
suppressor by the means of computer simulation.
• Investigated new statistical parameters of speech and speech+noise signals.
October 1997 - July 1999
Company Prodtorg LLC. (St.Petersburg, Russia)
Position Software engineer
Responsibilities
• Created algorithms and software for statistical processing of economical data.
• Economical data processing.
October 1986 - July 1997
Company Research institute of the applied science (St.Petersburg, Russia)
Position Chief of laboratory (1994 – 1997), Junior scientist (1986 – 1994)
Responsibilities
• Provided scientific investigation in the area of experimental data processing, signal processing,
statistical simulation.
• Developed algorithms and software for processing of biological, medical time series.
• Investigated statistical characteristics of different time series and its models.
• Simulated different algorithms of the time series parameters estimation.
EDUCATION
1986 – 1988: St.Petersburg State University, Faculty of Mathematics and Mechanics. Applied
mathematics for engineers course.
1981 – 1986: St.Petersburg High Naval Institute of Radio electronics. Major: Electronics, Hydro acoustics.
Diploma with honors.
1997 – 1998: Internet FOREX Network Incorporation, St.Petersburg. Financial mathematics. Theory and
practice of currency exchange trading.
LANGUAGES
Russian: Native.
English: Fluent.

3. REFERENCES
Available upon request.
APPENDIX – MAIN SCIENTIFIC WORKS PUBLISHED
A list of my main works can be fond at:
https://scholar.google.ru/citations?hl=ru&user=Sse7uEsAAAAJ&view_op=list_works&sortby=pubdate
Article: Aleinik Sergei, Stolbov Mikhail. “A Comparative Study of Speech Processing in Microphone Arrays
with Multichannel Alignment and Zelinski Post-Filtering”. Speech and Computer. Springer
International Publishing, 2015. pp. 34-41.
Article: Aleinik, Sergei, Stolbov Mikhail. “SNR Estimation Based on Adaptive Signal Decomposition for
Quality Evaluation of Speech Enhancement Algorithms”. Speech and Computer. Springer
International Publishing, 2015. 364-371.
Article: Simonchik, K., Aleinik, S., Ivanko, D., & Lavrentyeva, G. “Automatic Preprocessing Technique for
Detection of Corrupted Speech Signal Fragments for the Purpose of Speaker Recognition”. In
Speech and Computer. Springer International Publishing. 2015, pp. 121-128.
Article: Aleinik, S.V., Stolbov, M.B.: “Improvement of Microphone Array Characteristics for Speech
Capturing”. Modern Applied Science, Vol. 9, No 6, 2015, pp.310-319.
Article: Aleinik, S., Sukhmel V.: “Voice Passphrase Variability Evaluation for Speaker Recognition”.
Lecture Notes in Computer Science, Vol. 8915, 2015, pp. 3 – 9.
Article: Aleinik, S., Kudashev, O., “Estimating Stochasticity of Acoustic Signals”, Speech and Computer.
Lecture Notes in Computer Science, Springer International Publishing, Switzerland, Vol. 8773, 2014,
pp. 192-199.
Article: Aleinik, S.V., Stolbov, M.B.: “Speech Enhancement with Microphone Array Using Frequency-
Domain Alignment Technique”. In: Proc. of Audio Engineering Society Conference: 54th
International Conference: Audio Forensic, 2014.
Article: Aleinik, S.V., Stolbov, M.B.: “Time Delay Estimation Using Signal Envelopes for Synchronisation of
Recordings”. International Journal of Electrical, Electronic Science and Engineering, 8(2), 66 – 73?
2014
Article: Aleinik, S.V., Matveev, Y.N.: "Detection of Clipped Fragments in Speech Signals". International
Science Index 86, International Journal of Electrical, Electronic Science and Engineering, 8(2), 74 –
80, 2014
Article: Ignatov P., Stolbov M., Aleynik S. “Semi-Automated Technique for Noisy Recording Enhancement
Using an Independent Reference Recording”, in Proc of 46th International Conference of the Audio
Engineering Society. Denver, CO, USA. June 14-16, pp. 57-64, 2012.
Article: "Approximate calculation of optimal time of fluctuate signal analysis". "Radiotekhnika",
Moscow, 1992, No. 10-11
Article: "Spectral analysis of moving fibrous paper-water flow". "Isvestiya of St.Petersburg
Lesotechnicheskoi Academii". 1993.
Article: "Optical methods as an instrument for cellulose flow investigations". "Lesnoi zhurnal", St.Petersburg,
1993, No. 2-3
Article: "Approximate distribution density of the sum of dependent Gaussian random values squares".
"Radiotekhnika", Moscow, 1999, No. 1, pp. 53-55.
Article: "Time series determinancy evaluation". "Radiotekhnika", Moscow, 1999, No. 9, pp. 16-22.
Report at a conference:” Informational approach to seismic data processing", I St.Petersburg International
Conference "Conversion technology of hydro acoustics", 1994.
Report at a conference: "New method of noise reduction in telecommunications. Informational approach".
VI Petersburg International Conference "Regional Information science-96", 1996.
Patent: Russian Patent No. 2077182 "Method and device for noise suppression", 1994.
Patent: Russian Patent No. 2077181 "Method and device for noise suppression in pauses", 1994.
Patent: Russian Patent No. 2078380 "Method and device for automatic control of the recorded signal level",
1995.