FIGURE 1-1 Applications of DSP. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved. Touch-Tone™ telephones Edge detection in images Digital signal and image filtering Seismic analysis Text recognition Speech recognition Magnetic resonance image (MRI) scans Music synthesis Bar code readers Sonar processing Satellite image analysis Digital mapping Cellular telephones Digital cameras Detection of narcotics and explosives Speech synthesis Echo cancellation Cochlear implants Antilock brakes Signal and image compression Noise reduction Companding High definition television (HDTV) Digital audio Encryption Motor control Remote medical monitoring Smart appliances Home security High speed modems

FIGURE 1-2 Examples of signals. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-2 Examples of signals. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-2 Examples of signals. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-2 Examples of signals. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-2 Examples of signals. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved. Courtesy Michael Noonan, Ph.D. Canisus College

FIGURE 1-2 Examples of signals. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-3 Black and white image. © Snap-shot.com. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-4 Four frames from high-speed video sequence. “ Vision Research, Inc., Wayne, NJ., USA. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-4 Four frames from high-speed video sequence. “ Vision Research, Inc., Wayne, NJ., USA. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-4 Four frames from high-speed video sequence. “ Vision Research, Inc., Wayne, NJ., USA. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-4 Four frames from high-speed video sequence. “ Vision Research, Inc., Wayne, NJ., USA. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-5 Analog voltage signal. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-6 Sample-and-hold signal. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-7 Quantization and digitization. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-8 Digital signal. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-9 Zero order hold signal. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-10 Recovered analog signal after smoothing. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-11 A/D and D/A conversion. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-12 Digital speech signal. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-13 Signals and spectra. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-13 Signals and spectra. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-14 A single piano note (middle C) and its time trace. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-15 Spectrum of middle C ( Hz). Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-16 A piano chord (CEG) and its time trace. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-17 Spectrum of CEG chord ( Hz). Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-18 Examples of spectra. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-18 Continued. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-18 Continued. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-18 Continued. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-18 Continued. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-18 Continued. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-19 Bass, tenor, alto, and soprano singing ranges. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-20 Low pass filter to extract bass voices. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-21 High pass filter to extract soprano voices. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-22 Band pass filter to extract alto voices. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-23 Spectrum for CEG chord ( Hz). Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-24 Low pass filtering a piano chord Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-24 Continued. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-24 Continued. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-25 Wireless communication system. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-26 Sample and hold for Question 1.4. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-27 Applying zero order hold to signal for Question 1.8. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-28 Spectra for Question 1.9. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-28 Spectra for Question 1.9. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-29 Magnitude spectra for Question Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 1-30 Three Touch-Tone™ digits. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.