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Digital Voice and Picture Communication

Digital Voice and Picture Communication. Instructor: Prof. Somnath Sengupta, Department of Electronics and Communication Engineering, IIT Kharagpur. The course discusses topics in digital voice and picture communication: speech production model, speech coding: objectives and requirements, quantizers for speech signal, mu-law and optimum quantizer, adaptive quantizer, differential quantization, LDM and ADM, differential PCM and adaptive prediction, linear prediction of speech, computational aspects of LPC parameters, Cholesky decomposition, lattice formulation of LPC coefficient, linear predictive synthesizer, LPC vocoder, voice coding, theory of wavelets, discrete wavelet transforms, embedded zero tree wavelet encoding, motion estimation techniques, DCT quantization and limitations, H.323, MPEG-1 audio coding, video coding, video conferencing: SIP protocol, and 4G multimedia conferencing. (from nptel.ac.in)

Lecture 40 - 4G Multimedia Conferencing


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Lecture 01 - Introduction
Lecture 02 - Speech Production Model
Lecture 03 - Speech Coding: Objectives and Requirements
Lecture 04 - Quantizers for Speech Signal
Lecture 05 - Mu-Law and Optimum Quantizer
Lecture 06 - Adaptive Quantizer
Lecture 07 - Differential Quantization
Lecture 08 - Linear Delta Modulation (LDM) and Adaptive Delta Modulation (ADM)
Lecture 09 - Differential PCM and Adaptive Prediction
Lecture 10 - Linear Prediction of Speech
Lecture 11 - Computational Aspects of LPC Parameters
Lecture 12 - Cholesky Decomposition and Durbin's Recursive Approach
Lecture 13 - Lattice Formulation of LPC Coefficient
Lecture 14 - Linear Predictive Synthesizer
Lecture 15 - LPC Vocoder
Lecture 16 - Introduction to Image and Video Coding
Lecture 17 - Lossy Image Compression: Discrete Cosine Transform (DCT)
Lecture 18 - DCT Quantization and Limitations
Lecture 19 - Theory of Wavelets
Lecture 20 - Discrete Wavelet Transforms and Multi-resolution Analysis
Lecture 21 - DWT on the Images and its Encoding
Lecture 22 - Embedded Zero Tree Wavelet Encoding
Lecture 23 - Video Coding: Basic Building Blocks
Lecture 24 - Motion Estimation Techniques
Lecture 25 - Fast Motion Estimation Techniques
Lecture 26 - Video Coding Standards: H.264
Lecture 27 - H.264: Advanced Coding Aspects
Lecture 28 - Audio Coding: Basic Concepts
Lecture 29 - Audio Coding: AC3
Lecture 30 - AC3 Decoder
Lecture 31 - MPEG-1 Audio Coding
Lecture 32 - Introduction to VoIP
Lecture 33 - VoIP Signaling: H.323 Protocol
Lecture 34 - H.323 Call Controls and Enhancements
Lecture 35 - H.323: Interworking with PSTN, Limitations and Solutions
Lecture 36 - H.323: Multiplexing Schemes
Lecture 37 - H.323: Multiplexing: Header Compression and BW Efficiency
Lecture 38 - ISDN Video Conferencing
Lecture 39 - Video Conferencing: SIP Protocol
Lecture 40 - 4G Multimedia Conferencing