Notice: This Contains English Only Content. Spanish and German not included.

This application was originally designed at the University of Iowa to help students learning how the sounds of different languages are produced. Since its production, it has become a milestone for phonetics teaching tools around the globe.

Sounds of Speech™ provides a comprehensive understanding of how, physiologically, each of the speech sounds of American English is formed. It includes animations, videos, and audio samples that describe the essential features of each of the consonants and vowels of American English. Sounds of Speech™ is especially useful for students studying English as a second language. Features include:

What’s New

Version 2.2.2

New improved interface now includes iPad
Dictionary search
Text translations for: Spanish, Korean, Chinese (Simplified and Traditional) (English version only)

Ratings and Reviews

2.7 out of 5
25 Ratings

25 Ratings

eglantina S ,

Needs improvement

I used to love this site because it would give you a list of words examples for each sound . Another downside of the app is that it doesn’t show you the sound for the complete word , rather it breaks it into parts but I want to be able to hear its pronunciation in both forms . As an English language student and linguistics student I find it a bit problematic not to have enough examples . Please make the app quality as good as your site . A big thanks though for all the good work you have already done .

Annie Santoro ,

Wish pause and slow motion were options

Love the idea of the app, I just wish I could pause the animations or view them in slow motion. My apraxia and dysarthria patients often require extra processing time, slowing it down would help their concept transfer!

FarlkleQueenBee ,

Great App for Graduate School

I love this app!! I am a graduate student for speech and have used this app many times to double check place, manner and voice. The app is very user friendly and straight forward. I love the video examples in animation as well as the real life videos of people making each phoneme. The app is also visually pleasing with clear colors of each anatomical structure. A great tool during my schooling.


University of Iowa Research Foundation
80.1 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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