Having trouble hearing the TV when others have it turned down "low?" LouderTV might be the app for you. This app acts as a hearing aid that allows you to set the fine tuning yourself. Simply place the device near the TV with the microphone aimed at the source and tune.
Want to learn more about this app? Please visit: https://itunes.apple.com/US/app/id493844808?mt=8&ign-mpt=uo%3D4