Wednesday Jul 01, 2020

Chris Ellis: Improving Hearing With the Audio Cardio App

This week, Rachel interviews Chris Ellis of Audio Cardio, an app designed to help strengthen hearing. They discuss how the app uses threshold sound conditioning (TSC) and barely audible sound to stimulate the cells in the ear, and the results of research studies suggesting TSC can improve hearing thresholds.  


TWT listeners can get a free 30 day trial of Audio Cardio by going to and using the code AAC3XS


Before the interview, Chris and Rachel talk about intersection of hearing and AAC. Rachel shares about an AAC user who had recently received cochlear implants. This AAC user benefited from the visuals on the device and he rapidly improved his functional communication by using the device. Then, Chris shares about some of the issues regarding speaker volume he has solved with solutions like bluetooth speakers. Finally, Chris and Rachel discuss teaching AAC users how to change volume on their devices so they can be heard above the background noise.


Check out Picseepal, a low tech communication tool that is mobile, durable, and splash-proof, at and on Facebook at 


Visit to access previous episodes, resources, and CEU credits that you can earn for listening to TWT episodes!

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