Hello, Im in need of some major hand-holding. I have no experience with arduino, any other similar solutions, or electric engineering in general, but I dont know of any other options for what I need that would suffice. I do have a background in tech, mainly software, and majored in comp sci, so I believe keeping up will be possible for me.
Im trying to make a portable hearing assistance device for an elderly relative that refuses to wear a hearing aid for reasons that Id rather not get into. The existing stuff thats out there is either crap in terms of quality or quite pricey.
The device, as I see it, should consist of a 3.5mm mic input (preamp), 3.5mm headphone output, volume control (amp), a battery pack (preferably rechargeable), and an on/off switch. Due to the purpose of the device, the sound feed needs to be passed through in as close to real time as possible with minimal processing other than volume.
Found this mic preamp:https://www.sparkfun.com/products/8872
and this VU shield: http://macetech.com/store/index.php?main_page=product_info&products_id=11
but thats from some high level searching and I dont know what else to look for.
What type of hardware would I need for this?
Are there any software requirements?
Is there anything Im missing or havent considered?
Has anybody done anything similar and willing provide guidance?
I have no idea where to start and would really appreciate some help.