We are supporting Special Edition, Inc on a car computer engineering project. The goal is to get a car computer in a 1955 Porcshe 550 Spyder replica that they build out a “piece of bare ground” Here is a quick shot of the what the dashboard will look like without the monitor.
Over the next couple of weeks expect several blog posts explaining the details of the car computer's integrated features.
I am going to kick this off with some interesting information we obtained about hacking the Andrea's super beam microphone. To maintain aesthetics we wanted to expose only the microphone portion of the superbeam and just place the mic pickups right in the dash. This would effectively leave just two black “dots” on each side of the speedometer.
Here is the information we obtained from Andrea’s acoustical engineers:
3.5" spacing = approximately 30 degree beam or cone shaped pickup.
6" spacing = approximately 20 degree beam or cone shaped pickup.
8" = approximately 10 degree beam or cone shaped pickup.
Here are some photos of the unit when we hacked it open. Microphone extension wires can just be soldered in place to the appropriate length based on your installation.
We were also cautioned by Andrea to make sure to expose in the passenger cabin the rear slots of the microphone as well as the front slots of the microphone. Unfortunately this will make the mic stick out about a ¼ inch, but at least we can hide all the other electronics.
This microphone hack has coupled with a new external USB echo canceling sound card that is amazing for Bluetooth calls which will be the subject of a future blog entry. Talk about this here on our forums blog talk section. Check out the breif work log here.