Need some pointers on device sound development:
1. Control the device's volume in an application.
2. Determine what is the current sound output device (speaker-normal, speaker-speaker mode, audio jack, blue tooth device n, etc).
3. Setting what the current sound output device is.
The goal is to have an app be aware of its audio profile. There are NFC apps that change states depending on where they are (car mode, desktop mode, phone mode, shop floor mode, etc). I would like to have my app be aware its current audio state.