Stu Almeleh almeleh1
9/10/13
ECE 402 HW 1
1) The cover page graph is a three-dimensional graph of the amplitudes of the partials of a
trumpet tone played at E-flat above middle C. The x-axis is the pa
ECE 329
Homework 14 Solutions
Due: Thu, Aug 1, 2013, 5 PM
1.
a) Since the voltage measured at any distance along the TL is given by
V (d) = V + (ej
where
L
=
ZL Zo
ZL +Zo ,
d
Le
j d
VL = V (0) = V + (
ECE 329
Homework 7 Solutions
Due: Fri, July 5, 2013, 5PM
1.
a) The current in the outer loop can be calculated by Ia =
remember from Lecture 10. Thus, we write
Ia =
V
V
= 2a =
R
r2
5
21
4107 0.0012
V
ECE 329
Homework 11 Solutions
Due: Fri, July 19, 2013, 5 PM
1. For a wave propagating at 10 kHz in the medium of interest, ! = 0.89 105
1. Therefore, the sea
water is considered to be a good conductor
ECE 329
Homework 1 Solutions
Due: Fri, June 14, 2013, 5PM
1.
a) D = A + B = 2
x
3
y + 4
z
b) A + B
4C = 2
x 3
y + 4
z 4(3
x + y 2
z ) = 10
x
p
c) |A + B 4C| = ( 10)2 + ( 7)2 + 122 17.117
7
y + 12
z
d)
ECE 329
Homework 8 Solutions
Due: Tue, July 9, 2013, 5PM
1.
a) Solution of the left-hand side of the Faradays law r E =
rE=
x
y
z
@
@x
@
@y
@
@z
0
sin(!t + x)
0
which must be equal to
@B
@t .
=
@B
@t
ECE 329
Homework 4 Solutions
Due: Tue, June 25, 2013, 5PM
1.
a) Using E =
rV , the electric field E at x =
d
2
is calculated as
@ (x/d)4/3
x
@x
x1/3
4 4/3 x
x= d
2
d
5
23 V
x
.
d m
E(x) =
Va
=
=
b)
1) The fundamental partial has one of the higher amplitudes witnessed among the other partials,
only the second and third partials able to rival its peak amplitude with a considerable drop when
we rea
HW2
1) Because of how difficult it is to have a perfect sheet of music. The rules of printed music such
as the last line always having to be full and filling the whole last page of longer music,
compl
Dear Prof. Haken,
I am writing to explain that there are 2 mistakes in the sample answer of IV. B).
1. According to the course package p. 307-308, the beat formula provided on the exam
B1 = B(t1) = t1
Stu Almeleh
11/5/13
HW 8 ECE 402
1) Figure 7 is the spectrum of the windowed version superimposed on the original sounds
spectrum while figure 8 is superimposed on the spectrum of the lower pitched ve
Stu Almeleh
11/12/13
HW 9 ECE 402
1) Figure 16 shows an all-pole low-pass magnitude-squared response. This filter is
composed of cascading passband then stopband filters. The musical cutoff frequencie
Stu Almeleh
11/19/13
HW 7 ECE 402
1) Timbre morphing is the process of combining two or more sounds to create a new sound
with intermediate timber and duration. Mixing on the other hand is simply the
Stu Almeleh - almeleh1
10/29/13
HW 6 ECE 402
Figure 17 shows the basis spectra and amplitude envelopes from three separate tables with
amplitude vs. harmonic number. The fourth table shows a 3-table G
Stu Almeleh - almeleh1
10/22/13
HW 5 ECE 402
1. The Method of Reassignment coreects for the poor localization obtained with the
spectrograph. It reassigns the energy to the center of gravity and shift
Stu Almeleh
10/1/13
1) The algorithm for finding notated rhythmic durations works using a metrical structure
that must have several levels of equally spaced beats. The key rule is that strong beats
sh
ECE 329
Homework 6 Solutions
Due: Tue, July 2, 2013, 5PM
1.
a) Referring to the hint, we expect E, B, and Vs to be orthogonal one to another. Based on this
assumption, we can write
Q
|E| =
4o r2
for t
ECE 329
Homework 9 Solutions
Due: Fri, July 12, 2013, 5PM
A
1. The pulse of sheet current Js (t) = y4trect( t ) m
will produce magnetic and electric fields as shown in
the following figure.
x
E+ H+
E+
Stu Almeleh
9/16/13
1) MusicXML allows a user to create digital sheet music using XML code. Its used to not
only create, but read and exchange music between users; even with lyrics. MusicXML
can also