Audio Engineering

422 Chapter 14 As Figure 14.4 showed, noise can change the timing of a sliced signal. While this system rejects noise that threa ...

Digital Audio Fundamentals 423 14.6 Time Compression and Expansion ............................................................. ...

424 Chapter 14 transmission, the time compression of the samples allows time for synchronizing patterns, subcode, and error-corr ...

Digital Audio Fundamentals 425 14.7 Error Correction and Concealment ........................................................... ...

426 Chapter 14 and burst errors. In optical disks, random errors can be caused by imperfections in the moulding process, whereas ...

Digital Audio Fundamentals 427 The presence of an error-correction system means that the audio quality is independent of the med ...

428 Chapter 14 Subsequently, the samples need to be deinterleaved to return them to their natural sequence. This is done by writ ...

Digital Audio Fundamentals 429 Figure 14.14(b) : In addition to the redundancy P on rows, inner redundancy Q is also gener ated ...

430 Chapter 14 is formed along tracks on the medium. Random errors due to noise are corrected by the inner code and do not impai ...

Digital Audio Fundamentals 431 Channel coding is also needed to broadcast digital signals where shaping of the spectrum is an ob ...

432 Chapter 14 stream. In practice, audio and video streams of this type can be combined using multiplexing. The program stream ...

Digital Audio Fundamentals 433 Buffer memory Read Audio out DAC Continuous audio samples Seek Seek Figure 14.16 : In a hard disk ...

434 Chapter 14 While mechanically complex, rotary head transport has been raised to a high degree of refi nement and offers the ...

Digital Audio Fundamentals 435 Figure 14.18 : Block diagram of digital audio tape. ...

436 Chapter 14 Internet audio allows a wide range of services that traditional broadcasting cannot provide and phenomenal growth ...

Representation of Audio Signals Ian Sinclair The impact that digital methods have made on audio has been at least as remarkable ...

438 Chapter 15 When we attempt to take a measurement from this plot we will need to recognize the effects of limited measurement ...

Representation of Audio Signals 439 electrically driven pen wrote the same shape onto a second drum [ Figure 15.2(a) ]. In this ...

440 Chapter 15 well assured of correctly conveying the information requested. At the receiving end the numbers are plotted on to ...

Representation of Audio Signals 441 common use. We recognize that the old coinage system in the United Kingdom used the base of ...