simple sound detection(something like a clap of a whistle)

Using Arduino Audio
1

hi,

i am trying to program a car, that will stop if i whisle to it.

is it possible to detect a whistle without using something complex like bitvoicer or easy VR?

something like understanding what a whistle wave looks like, and then comparing?

the input will obviously be thorugh an ordinary mic.

2

Ever visited the arduino tutorial pages? :wink:

Check - http://arduino.cc/en/Tutorial/Knock - !

3

but wont i have to be whistling REALLY hard to get this working?

4

Never tried this sketch with a whistle.
AN alternative is to use a microphone like his one - SparkFun Electret Microphone Breakout - BOB-12758 - SparkFun Electronics -

5

but what logic to use to distinguish between sounds?

6

Fourier transform or FFT, it splits the signal into its building frequencies

Google for Arduino and FFT to find some implementations

7

Or you can use a notch filter on the input.
There are also tone detecting chips that give a digital output.