Spring 2027

Electro-acoustical Engineering

Electro-acoustical engineering covering sound wave principles, analogies, and transducer materials/techniques including microphones and loudspeakers.

offering recorded3 credits
Recorded instructors · Spring 2027 Chu Ma

Summary

1 / 3

Recent recorded grades — Spring 2023: 3.66 GPA, 81.0% A/AB (n=58 letter grades); Spring 2024: 3.64 GPA, 77.4% A/AB (n=62 letter grades); Spring 2026: 3.80 GPA, 89.4% A/AB (n=66 letter grades).

What you’ll be able to do

  • Describe the generation and propagation of plane and spherical sound waves

  • Analyze acoustic wave transmission and reflection at flat boundaries of different media

  • Describe working principles of different types of transducers such as microphones and loudspeakers

  • Use computer-based tools to process acoustic signals

  • Describe the working mechanism of acoustic beamforming

Source: UW Guide

Grade history

↗
average GPA
letter grades
A
AB
B
BC
C
D
F

All recorded terms · compare terms & instructors

Prerequisites

Course map

E C E 203, graduate/professional standing, or member of Engineering Guest Students

    • ECE 203
    • graduate/professional standing
    • member of Engineering Guest Students
    take one
ECE 401

This is a best-effort interpretation; check the catalog requirements above.

Prerequisite text tree
  • Any of
    • ECE 203
    • graduate/professional standing
    • member of Engineering Guest Students

Professors

Spring 2027

Chu Ma

Recent recorded grades — Spring 2023: 3.66 GPA, 81.0% A/AB (n=58 letter grades); Spring 2024: 3.64 GPA, 77.4% A/AB (n=62 letter grades); Spring 2026: 3.80 GPA, 89.4% A/AB (n=66 letter grades).

Historical instructors & teaching patterns

CHU MA is recorded teaching in Spring 2020, Spring 2022, Spring 2023, Spring 2024, Spring 2026. Recorded history may be incomplete and does not establish a future schedule.

Recorded history may be incomplete and does not establish a future schedule.

Calendar & sections

Spring 2027

Schedule loads here as you scroll.

SectionModeEnrolled / capacityWaitlist
LEC 001Classroom Instruction0 / 700

Times are Central. Select a meeting for details; export includes recorded dates for the selected sections. Enrollment reflects scan time.

Meeting source records
Download part 1

Student experience

the class

Recent recorded grades — Spring 2023: 3.66 GPA, 81.0% A/AB (n=58 letter grades); Spring 2024: 3.64 GPA, 77.4% A/AB (n=62 letter grades); Spring 2026: 3.80 GPA, 89.4% A/AB (n=66 letter grades).

difficulty & workload

No workload feedback recorded.

Topics

  • Plane and spherical sound waves
  • Acoustical, mechanical, and electrical analogies
  • Electroacoustic transducer materials and techniques
  • Microphones and loudspeakers

Skills

  • Describing generation and propagation of plane and spherical sound waves
  • Analyzing acoustic wave transmission and reflection at flat boundaries
  • Describing working principles of transducers like microphones and loudspeakers
  • Using computer-based tools to process acoustic signals
  • Describing the working mechanism of acoustic beamforming

Grades

Latest available · Spring 2026— not enough history to project Spring 2027.

average GPA
A / AB grades
letter grades
Instructor

Grade distribution · % of letter grades

A
AB
B
BC
C
D
F

Grades over time

Through Spring 2026

More grade details Grade mix, volume & source data

Where this course fits relative to

Latest available grades · Spring 2026 · all course levels

GPA

Higher than % of other courses in this group.

Course GPAs · red marks this course’s range

letter grades

More recorded grades than % of other courses in this group.

Typical course in this group: letter grades.

About this comparison

1280 courses over the same term, each with at least 30 recorded letter grades. Cross-listed courses count once. GPA is not a measure of difficulty or teaching quality. The typical course is the median by recorded grade count; tied values are not counted as lower. Grade counts describe course scale, not unique students or typical section size.

Descriptions compare GPA with this group’s average: at least 0.20 higher or lower; otherwise close to average. Section size uses median recorded enrollment: small up to 30, mid-sized 31–99, large 100+. Lectures and discussion/lab sections are described separately.

Sources & history

UW–Madison

Catalog & offerings

Descriptions, prerequisites, and recorded course offerings.

Catalog observation history

Observations at scan time; dates do not imply when a catalog change took effect.

Download part 1
Selected offering source records
ECE 401 · Spring 2027

Electro-Acoustical Engineering

Recorded 2026-10-14
Raw records 
[
  {
    "run_id": "20261014T203208-0851c9a1",
    "semester": "1274",
    "observed_at": "2026-10-14 17:50:09.728220+00:00",
    "offering_id": "1274:320:006354",
    "course_id": "ECE 401",
    "course_uid": "course_e8307eb529fe8bd534db94ab",
    "term_id": "1274",
    "source_course_id": "006354",
    "source_subject_id": "320",
    "title": "Electro-Acoustical Engineering",
    "credits_min": 3,
    "credits_max": 3,
    "typically_offered": "Fall"
  }
]
Rate My Professors

Student reviews

Original comments behind the course and instructor summaries.

Read original reviews

No records available.

Madgrades

Grade history

Recorded grade distributions by term, section, and instructor.

Explore recorded grades
Dataset & model

Recorded 2026-10-14

View the dataset on Hugging Face
Model outputs & technical records
Qwen/Qwen3.8-27B
LLM outputs across runs
Download part 1
Full model traces

Recorded model configuration, reasoning, and tool conversations.

Download part 1
Model & dataset provenance 
{
  "model": "Qwen/Qwen3.8-27B",
  "model_revision": "1d4bf0f2ff6012fd82039f2fa52739d0dd7c60c0",
  "task_version": "17",
  "output_id": "7fe14b85162c527367e45c42a87073090f9f993c74fbf13e6d0d9df143ba9f8c",
  "requirements_status": "valid",
  "dataset_revision": "fc1811fa52e581ea57a35c0cf3343f8740a8ffbf",
  "observed_at": "2026-10-14 17:50:09.728220+00:00"
}