1- (8 point) The following questions relate to an array called numfrc. a) Define the size of the array to 25 by using a constant macro SIZE. b) Declare the array to be of type double and initialize the elements to 0. c) Assign the value of 6.666 to the 14 th element of the array from beginning. d) Refer to array element index 14 and assign the value of -6.666 to it. e) Assign the value 1.667 to array element index nine. f) Assign the value 3.333 to the seventh element of the array from beginning. g) Print array elements index 14 and 9 with two digits of precision to the right of the decimal point, and show the output that is displayed on the screen. h) Print all the elements of the array, using a for repetition statement. Assume the variable i has been defined as a counter control variable for the loop. Show the output as a table with index number and element value.

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