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 2.3

Fixed typo on Search page. Changes under the hood to allow for future updates.

Ratings and Reviews

2.5 out of 5
34 Ratings

34 Ratings

123MASxoxo ,

Not what is was Too Bad

I used this site in the past and purchased the app hoping it was going to be similar to the desk top version. While it offers more languages, I don’t care for the app version. Everything was on one page per sound on the desktop version. I could see both the animated and live model version. It provided a profile and head on view. So much better before. Now, I have to jump between various pages and in the process lose the students attention and just not as effective.

I will use it because I paid for it but may opt for other visuals

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!

App Privacy

The developer, The University of Iowa Research Foundation, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

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