My Father is deaf and uses a hearing loop around his neck to pick up audio. However, this needs a large, bulky box to amplify the sound.
He bought a 3.5mm jack to Headphone + Microphone splitter (link is as an example, not as an advert) which works with the iPhone; we tested by recording then playing an audio file.
However, we need an app that will play audio in over the speakers / headphones out - in real time, a little like this in Windows.
We found a few apps, but they all seem to record and then play it back. Is there one that will do this?
We would like a free app (of course) but will happily pay a little if we know it will work. This is an iPhone 4 which is fully updated.