Vytautas Deksnys, Algimantas Čitavičius Kaunas University of Technology Dept. of Electronics Engineering

1. HUMAN HEARING AND PERCEPTION Human ear structure Limits of hearing Masking  Time Masking  Frequency Masking The ear as spectrum analyzer COURSE LECTURES CONTENT

2. SPEECH PRODUCTION SYSTEM The Human Voice Vowels and Consonants The Engineering Model 3. LINEAR PREDICTIVE ANALYSIS Basic principles of linear predictive analysis Optimal prediction coefficients The autocorrelation method  The Durbin‘s recursive procedure  The minimal prediction error and effectiveness of prediction The covariance method The choice of parameters for linear predictive analysis COURSE LECTURES CONTENT

4. PULSE CODE MODULATION Sampling: Nyquist- Shennon sampling theorem Ideal sampling Aliasing and anti-aliasing Flat-top sampling Quantizing; Uniform quantizing Encoding Bandwidth of PCM signals Linear PCM advantages and disadvantages COURSE LECTURES CONTENT

5. SPEECH COMPRESSION Necessity and possibility of compression Nonuniform quantizing: µ-law and A-law companding Adaptive quantization  Maximum SNR coding  Adaptation principle  Types of adaptation  Feed-forward adaptation  Feed-backward adaptation Differential quantization COURSE LECTURES CONTENT

6. SUB-BAND CODING PRINCIPLE 7. MPEG AUDIO LAYERS Audio Layer 1 Audio Layer 2 Audio Layer 3 MPEG-2 Audio Advanced Audio Coding 8. VECTOR QUANTIZATION COURSE LECTURES CONTENT

9. SCRAMBLING Scramblers and PN sequence generators Frame synchronization 10. PHASORS, MODULATIONS, CONSTELATIONS The phasor representation of a signal  Geometric Interpretation Modulation Multilevel modulation and constellation diagrams COURSE LECTURES CONTENT

11. CONVOLUTIONAL CODES Code parameters and the structure of the convolutional encoder Encoder states Punctured codes Coding of an incoming sequence The encoder design State Diagram Tree Diagram Trellis Diagram COURSE LECTURES CONTENT

Decoding  The basic idea behind decoding  Sequential decoding  Maximum Likelihood and Viterbi decoding COURSE LECTURES CONTENT

Prof. Vytautas Deksnys URL: Phone: Kaunas University of Technology

* Analyze all parts of DVB-ASI (MPEG2 TS) stream contents; * Investigate TS modulation according to the ETS (QAM - Quadrature amplitude modulation) and ETS (COFDM - Coded Orthogonal Frequency Division Multiplexing); * Investigate TS parts processing possibilities: - PID (Packet Identifier remapping); - EPG multiplexing; - PCR (Program Clock Reference) restamping; - service filtering;

- NIT (network information table) generation; - PMT (program map table) monitoring; - PAT (Program Association Table) analysis; * Incomming transport stream bit rate measurement; * Analyze DVB-T/C set-top-box schematic (on STMicroelectronics SoC ST7105 basis) and FW architecture; * Analysis of HDMI interface (standard, signals, transfer rates, etc.).

* Investigation of phase noise influence on BER; * Investigation of channel noise and pulse disturbances influence on BER.