Computers and Technology, 18.09.2021 17:00 perezsamantha3oqr0za
You’ve been given a new cell phone with a 2 gigabyte data plan. You plan to use your phone for text messages, images, video, and music. Which of these categories are best compressed using lossless compression? Which of these categories are best compressed using lossy compression? Why?
a. Video should use lossy compression because it usually has a large file size which we need to reduce.
b. Text should use lossy compression because it always has a large file size which we need to reduce.
c. Audio should use lossy compression to save data and transmit quickly.
Answers: 2
Computers and Technology, 22.06.2019 14:30
Complete the sentence based on your knowledge of the professional difficulties faced by music artists. digital technology allows audiences to see free live telecasts of music or dance performances through
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Computers and Technology, 23.06.2019 12:00
3. when you right-click a linked spreadsheet object, what commands do you choose to activate the excel features? a. linked worksheet object > edit b. edit data > edit data c. linked spreadsheet > edit d. object > edit data
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Computers and Technology, 23.06.2019 19:00
Now you’re on your own. include a short summary of this section with plots in your lab report. write a matlab script file to do steps (a) through (d) below. include a listing of the script file with your report. 1 the soundsc(xx,fs) function requires two arguments: the first one (xx) contains the vector of data to be played, the second argument (fs) is the sampling rate for playing the samples. in addition, soundsc(xx,fs) does automatic scaling and then calls sound(xx,fs) to actually play the signal. mcclellan, schafer, and yoder, dsp first, 2e, isbn 0-13-065562-7. prentice hall, upper saddle river, nj 07458. c 2015 pearson education, inc. 4 mcclellan, schafer and yoder, signal processing first. prentice hall, upper saddle river, new jersey, 2003. c 2003 prentice hall. (a) generate a time vector (tt) to cover a range of t that will exhibit approximately two cycles of the 4000 hz sinusoids defined in the next part, part (b). use a definition for tt similar to part 2.2(d). if we use t to denote the period of the sinusoids, define the starting time of the vector tt to be equal to t , and the ending time as ct . then the two cycles will include t d 0. finally, make sure that you have at least 25 samples per period of the sinusoidal wave. in other words, when you use the colon operator to define the time vector, make the increment small enough to generate 25 samples per period. (b) generate two 4000 hz sinusoids with arbitrary amplitude and time-shift. x1.t / d a1 cos.2
Answers: 1
You’ve been given a new cell phone with a 2 gigabyte data plan. You plan to use your phone for text...
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