My app records audio and I use the sample audio recorder code you provide for this functionality. My app does not work in iOS 8.0.2 on iPhone 6 Plus. It will record 1 time, but then it will not record anymore and sound stops playing. I need to exit the app and restart it to make audio work again. It will only work 1 time each time I restart the app.
I decided to install your simple audio recorder on my device to see if the same problem happens and it does.
This is where I get your audio recorder code.
Corona SDK > Sample Code > Media > SimpleAudioRecorder