ECGR4122/5090                Acoustics                  Fall 2021 

Prof. Weldon: EPIC 2228,  tpweldon@uncc.edu 
Do NOT contact instructor through canvas, use email only.
Office hours: see my home page http://coefs.uncc.edu/tpweldon/ 
The course website is at http://coefs.uncc.edu/tpweldon/, listed under 
the "courses" tab at the top of the webpage. Resources for this course 
are also available in Canvas. Students must access the course website 
and Canvas modules for class notes, videos, links, and other materials.

Textbooks (required): 
  1) Acoustic Engineering Lecture Notes 2021 
     Thomas Paul Weldon, ISBN  979-8538016945 available on amazon.com 
     https://www.amazon.com/Acoustic-Engineering-Lecture-Notes-2021/dp/B099JY6ZS5/
  2)Acoustics for Engineers: Troy Lectures, 2nd Ed.
       by Jens Blauert, Ning Xiang 
     Free campus version (on campus vpn):
       https://www.springer.com/us/book/9783642033926
      Also available as amazon.com rental

Other references:
   - Acoustics. Beranek, L. L. (1954). United Kingdom: McGraw-Hill.
   - Acoustics: An Introduction to Its Physical Principles and Applications, 
       A.D. Pierce, 1989,Acoustical Society of America

Software (required on your personal computer):
  1) you must be able to run maatlab and siimulink on your personal computer
     plus AudioToolbox https://www.mathworks.com/products/audio.html
     NOTE: SEE COURSE WEBPAGE FOR required maatlab version/release
     Download website is: 
     https://www.mathworks.com/academia/tah-support-program/eligibility.html
  
Hardware required (purchase for projects/experiments)
    see http://thomasweldon.com/tpw/courses/eegr4122/e4122p07reflection.html
   1) Arctic S111 BT Mobile Bluetooth V4.0 Sound-System approx $10
      https://www.amazon.com/gp/product/B00KS3XCTU
   2) Microphone connected to computer (possibly from earbuds with mic)

Course Format
This course is intended to be delivered in a in-person format,but may go fully 
online as needed or as directed by the university. Various course components
may be delivered online (through Canvas and the course website), and other parts
should be conducted in the classroom, with social distancing guidelines applied.
The components of this course are meant to provide students with some
flexibility in their learning. The course is designed to engage students in a
process of pre-class activities, in-class activities, and post-class activities, 
including projects and supplemental videos.  In the event of
all-online classes, it is likely that weekly or topical videos will be
made available, and class-meeting time zoom/etc sessions will be used for
questions, quizzes, projects, etc. Any online, or face-to-face class may 
be recorded, with copyright by Thomas P. Weldon, all rights reserved.

Internet requirement: you will need reliable high-speed access.
Exams may be open book and on canvas. 
Quizzes may or may not be announced. Grading: Exam1 30%, Exam2 30%, 
Homework/Quizzes/Projects/etc 40%. NOTE: instructor may change weights.
Scale: 90-100 A, 80-89 B, 70-79 C, 60-69 D, with "curve," 
if any, entirely at the discretion of the instructor.  See prior year 
projects, exams, handouts, quizzes on website. For potential
documented covid absences, one quiz grade will be dropped for all
students, so save this option for any covid absence. Similarly,
project submissions may be delayed one week, and/or makeup exams will 
be prepared, but only for covid case with acceptable documentation 
emailed to the instructor before the project due date or exam date. 

The College of Engineering requires all students to own a laptop 
computer, and students must bring a laptop to every class meeting, 
since all quizzes/exams/projects are planned to be online, even
in the classroom. Students without a laptop during any quiz or exam
will receive a grade of zero or other sanctions.

Collaboration (not copying) on homework and projects is encouraged. 
However, different project groups may NOT copy program code or report material. 
Class attendance and participation are expected.  You must read the textbook; 
it is impossible to cover all material during class. 

The course will roughly follow the outline below; some key topics are noted
in the tentative list below.

Sequence    	Topic

	 	Intro and Applications of acoustics (Blauert 1.0-1.7)
		  Ultrasound, pressure, velocity, frequencies, dB
1		Mechanical oscillators (Blauert 2.0-2.5
                  Undamped and damped Mass+spring, mechanical impedance
2	 	Mechanical and electrical impedance (Blauert 1.4, 2.1-3.3)
                  RLC equivalents of mechanical and acoustic elements 
     		  Undamped and damped Mass+spring, mechanical impedance
4	 	Electrical and mechanical waves (Blauert 7.0
               	  LC lines, telegrapher equations, wave equations 
5		Acoustic Waves (Blauert 7.1-7.4,9.1-9.6)
		  Acoustic transmission line and acoustic waves
                  3D plane waves and acoustic radiation  
 	Exam 1

6               Waves on strings
                  Transverse waves on strings
7		Reflection of waves (Blauert 7.5, 7.6, 8.6)
		  Reflection coefficient, standing waves
8               Acoustic signals and frequency analysis
                  Fourier transform Frequency content of acoustic signals
9		Room acoustics (Blauert 9.0, 9.1, 12.0-12.3)
		  Monopoles, dipoles, ray-tracing, echogram
10		Acoustic arrays(Blauert 9.2-9.4)
		  Array patterns, array frequency response 
       Exam2 (typically during next-to-last week of classes)

15		Final project reports (see last year for examples)
                 

Final Exam      See Video Presentation and Review below               

Video Presentation and Peer Reviews (subject to change): 
     Topic TBD (see last year for examples).
     Every group must upload a 5 minute  video of a 
     presentation on/before 5 PM of the night before the scheduled final 
     exam, so that all videos will be ready online for peer review during
     the scheduled final exam meeting time.  In addition, a pdf of the 
     presentation slides must be emailed to the instructor by the same 
     deadline (as a backup in case of video technical difficulties).
     As an online final examination class session, each individual student
     must view randomly assigned videos during the final exam period, 
     and/or take an online quiz at instructor discretion. The video and
     reviews will be worth approximately one project.   
		
Excused absence makeups: May be scheduled for the last class period.
Makeups will usually cover cumulative course material.

COVID-19 Protection:
It is the current policy of UNC Charlotte that as a condition of 
on-campus enrollment, all students are required to engage in safe 
behaviors to avoid the spread of COVID-19 in the 49er community. 
Such behaviors specifically include the requirement that all students 
properly wear CDC-compliant face coverings in all indoor spaces 
on campus, including classrooms and labs, regardless of vaccination 
status.  Failure to comply with this policy in the classroom or lab 
may result in dismissal from the current class session. If the 
student refuses to leave the classroom or lab after being dismissed,
the student may be referred to the Office of Student Conduct and 
Academic Integrity for charges under the Code of Student Responsibility.

Students are expected to attend every class and remain in class for 
the duration of the session when it is safe to do so in accordance 
with university guidance regarding COVID-19. Failure to attend class 
or arriving late may impact your ability to achieve course objectives 
which could affect your course grade.  An absence, excused or unexcused,
does not relieve a student of any course requirement. Regular class 
attendance is a studentís obligation, as is a responsibility for all 
the work of class meetings, including tests and written tasks. Any 
unexcused absence or excessive tardiness may result in a loss of 
participation points. Students are encouraged to work directly with 
their instructors regarding their absence(s). For absences related to 
COVID-19, please adhere to the following: 

 1)Complete your Niner Health Check each morning.  
 2)Do not come to class if you are sick.  Please protect your health 
   and the health of others by staying home. Contact your healthcare 
   provider if you believe you are ill. 
 3)If you are sick: If you test positive or are evaluated by a 
   healthcare provider for symptoms of COVID-19, indicate so on your 
   Niner Health Check to alert the University. Submit a copy of your 
   Niner Health Check notification email to your instructors.  Upon 
   learning that you have tested positive or have been diagnosed for 
   symptoms of COVID-19, either from your reporting or from Student 
   health Center testing or diagnosis, representatives from Emergency 
   Management and/or the Student Health Center will follow up with you, 
   and your instructors will be notified of the need for accommodations, 
   as necessary.
 4)If you have been exposed to COVID-19 positive individuals and/or have 
   been notified to self-quarantine due to exposure, indicate so on your 
   Niner Health Check to alert the University. Representatives from 
   Emergency Management and/or the Student Health Center will follow up 
   with you as necessary. Submit a copy of your Niner Health Check 
   notification email to your instructors. If you need any additional 
   support verifying your absence after you have communicated with your 
   professors, contact Student Assistance and Support Services.
 5)To return to class after being absent due to a period of self-
   quarantine, students should submit a copy of their Niner Health 
   Check clearance email to their instructor(s). To return to class 
   after being absent due to a COVID-19 diagnosis, students should 
   submit an online request form to Student Assistance and Support 
   Services (SASS). Supporting documentation can be attached directly 
   to the request form and should be from a student's health care provider
   or the Student Health Center, clearly indicating the dates of absences
   and the date the student is able to return to class. Instructors 
   will be notified of such absences. 
 6)If you are absent from class as a result of a COVID-19 diagnosis or 
   quarantine, as instructor I will provide access to videos to help you 
   continue to make progress in the course. The final decision for 
   approval of all absences and missed work is determined by the instructor. 


If you miss an exam/quiz for any reason, you will receive a grade of zero  
(exceptional circumstances must be documented and/or approved by the 
instructor at least 24 hours prior to the exam).  Any special exam or project 
accommodation request should be made no later than the class meting one week
before the exam or project.  Late projects will not be accepted, and/or may 
be penalized up to 30 percent per day, solely at the instructor's discretion.
Absence from class sessions or internet sessions may result in grade reduction. 
The instructor is free to assign students to any project group at any time. 
Appeals regarding final grade must be communicated to instructor within 
14 days after end of semester, since any residual materials may be destroyed 
thereafter.   Departure from classroom during any quiz or exam will 
result in a grade of zero.  Students are responsible for submitting all 
forms to Disability Services, and must provide a notice of accommodation 
from Disability Services in the first week or two of the semester (see 
their office for more information).  Audio or video recordings are not 
permitted, and all course content are copyright by Thomas P. Weldon. 
If any recording is permitted in writing, such recording remains 
copyright by Thomas P. Weldon and shall not be distributed.
NOTE: Final grading may include a subjective component, at instructor 
discretion, based on the above rough weightings PLUS the instructor's 
overall evaluation of student performance in projects and class 
participation.  

This syllabus contains the policies and expectations established for this 
course. Please read the entire syllabus carefully before continuing in this 
course. These policies and expectations are intended to create a productive 
learning atmosphere for all students. Unless you are prepared to abide by 
these policies and expectations, you risk losing the opportunity to 
participate further in the course.

It is the responsibility of the student to be familiar with the academic
regulations, degree requirements, religious accommodation for students,
course requirements, and all other requirements, policies, and procedures 
set forth in the current University Catalog and all University Policies. 
The official university guidelines supersede any contradictions that may 
exist in this handout.  Violations may result in reduction of grades, 
zero grade, fines, suspension, course failure, or other adverse consequences.
In addition, a proper classroom environment is expected by all students,
and therefore any disorderly or disruptive conduct or other negative impacts
on the classroom, solely at the instructor's discretion, will result in 
expulsion from such class with a grade of zero for corresponding material,
and/or other adverse sanctions as may be deemed appropriate. Use of 
computers, tablets, phones, etc. during class are disruptive to other 
students in class, and may be prohibited case-by-case solely at instructor's 
discretion. If there are any issues or problems within a group, students
must follow the Project Problem Resolution Guidelines provided on the
course website.

The course policies set forth in this syllabus may be modified at any time 
by the course instructor.  Notice of such changes may be by announcement in
class, by canvas, and/or by email to the student's UNCC email address. 

ALL STUDENTS MUST MEET PREREQUISITES AND COREQUISITES FOR THIS COURSE as 
published in the UNCC Catalog which supersedes this syllabus.
Prerequisite: 
    ECGR 3111 with a grade of C or better
    Engineering major or minor
Corequisite:
Prerequisite or corequisite: 


Graduate Extra Project (Graduate level only, 5000  level) 
worth 10% of total homeworks/quizzes/projects grade. The following 
is a preliminary description, details may change later in semester.



Graduate projects (preliminary description):

TBD: See final project website from last year for examples.