The book contains 17 chapters. For audio, it covers characteristics of sound, microphones, loudspeakers, sound recorders, amplifi ers, noise and distortion, high fi delity, stereophony, PA system planning and concepts of reverberation. For video, it covers TV standards and video recording. The chapters are organized as follows: * Chapter 1: It covers general characteristics of sound * Chapter 2: Microphones are presented in detail in this chapter. Discussion on Supercardioid and Hypercardioid Microphones is included in this chapter. * Chapter 3: It presents a detailed account of working principles and different types of Loudspeakers. * Chapter 4: The principle of Gramophone Disc Recording and Disc Reproduction is explained in the chapter. * Chapter 5: This chapter explores the fundamentals of Magnetic Recording and Biasing. * Chapter 6: It is devoted to the Optical Recording of Sound. The Compact Disc and Playback Process are discussed in detail for better understanding. * Chapter 7: The chapter deals with Audio Amplifi ers. It has detailed coverage on the Amplifi er Circuits and Negative Feedback in Amplifi ers. * Chapter 8: The concept of Noise and Distortion is explained in this chapter. * Chapter 9: Different requirements for Hi Fidelity (Hi-Fi) system and Flat Frequency response is presented in this chapter. * Chapter 10: This chapter focuses on Stereophony, Stereo Systems and Stereophonic recording. xiv Preface * Chapter 11: It deals with requirements of Public Address System. The planning to install Public Address System for different situation is discussed in detail. * Chapter 12: The chapter presents detailed coverage on Acoustic Reverberation, Acoustical features and Design of Auditioriums. * Chapter 13: The fundamentals of TV is explained in this chapter with the help of block diagrams of TV transmitters and receivers. * Chapter 14: TV Standards followed in different countries has been explained in this new chapter. *Chapter 15: This chapter is devoted to Video Recording on Magnetic tape. Functioning of VCR and VCP is explored in easy manner. * Chapter 16: Latest video disk recording methods like VCD and DVD is discussed in this chapter. * Chapter 17: It gives extensive coverage of troubleshoot ing techniques used in modern electronic equipment. Trouble shooting in DVD has been added. Also, maintenance policy, MTBF, MTR and servicing aids have been added. This chapter now covers complete syllabus of the subject of troubleshooting in electronic equipment.