The hardware for this projected consisted of two commodity microphones, a
pre-amplifier, and a standard PC sound card. The pre-amplifier proved to be
the most challenging part of the project due to my lack of experience and
education when it comes to analog electronics. I ended up purchasing a couple
of sing-a-long tape recorders from K&B Toys and hacked them into the apparatus
you see below.
- Microphones - microphones are
placed at a known distance apart from each other.
- Pre-amplifier (front) - with time,
electrical tape, and a Dremel tool, dreams can come true.
- Pre-amplifier (back) - switch and
power-socket.
- Battery pack - this battery pack
was carved from one of the sing-a-long tape recorders. A wall-wort was
also used to power the pre-amplifier.
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