Acoustics Animations

Screenshot of a spectrogram.

Change in Diameter for a Pipe

A visualization of the reflection and transmission in a pipe that changes diameter

Image Sources

An interactive visualization of reflections from image sources.

Screen capture of the Image Source page.
Screenshot of a spectrogram.

Spectrogram

A simple way to visualize any sounds you can make.

Equal Loudness Contours

An interactive set of equal loudness contours based on ISO Standard 226:2023-03.

Screenshot of a Curves.

Math Animations

What are Sin and Cos?

An explanation of the trigonometric functions via interactive circles and triangles.

Screenshot of animation from page at link.
Screenshot of animation from page at link.

What are Amplitude, Frequency, and Phase?

A visualization of amplitude, frequency, and phase.

About Me

Noah Parker Spring 2023

I am Noah J. Parker, a Ph.D. student in the Graduate Program of Acoustics at Penn State University under the mentorship of Dr. Dan Russell — creator of the renowned Acoustics and Vibration Animations. I am developing pages that will similarly teach about acoustics with a focus on interactivity — allowing for curiosity and exploration. Whether you're an educator, a student, or just a curious soul, I hope to share some of my understanding of and passion for acoustics.

My pride-and-joy guitar

I was born and raised in Price, Utah where my fascination with sound and vibration started as I helped my grandparents build classical guitars. It always boggled my mind that a wiggling string can shake a wooden box that radiates sounds that we can understand as tones. Those tones can stack up to make chords which can change to make music and communicate powerful emotions, tell engaging stories, and evoke vivid memories. All this from some wiggling strings!

In my quest to understand this amazing sequence, I got a B.S. in Mechanical Engineering at Utah Valley University. After which, I got accepted at Penn State University where they have the best acoustics program around.