3 sound sensors

[nikhil.carvalho]

Hi,

I want to add 4 mic's to my pi for sound triangulation
Can some one point me in the right direction.
1. how to i connect the 3 mic's (i dont want to use USB)
2. If I use an arduino i am assuming that it will take a lot of time to process isn't that true?
3. what mic's will be the best to use?

[Tarcas]

You can't connect a mic directly to the Pi, as the Pi can't read analog signals. You need to use some sort of a sound card for this that uses a digital interface. If it was me, I'd pick up a USB soundcard with enough mic inputs, assuming one exists. If not, I'd use a USB hub with as many soundcards as necessary.
Why don't you want to use USB?

[nikhil.carvalho]

ur idea shounds perfect.
also if I want to have many sensors
eg 3 mics, 1 ir sensor, 2 motors, 1 camera, 2 speakers etc
how do I connect all this to my pi?
is there like an expansion chip?
if so can you give me a link to it?
Also can you give me the link to the mic you where talking about earlier.