>The graph shows four distinct spikes in the sound level caused by the finger snapping. The spikes peak at 30-50
>(db?) before the sound level goes back to its normal. The background noise measured is about 2-10 (db?).It is
>interesting to note that the spikes increase faster than they fade away. This observation can be due to resonance or >echo from the sound waves which take some milliseconds to fade away.
>
> ---
># Exercise 3 - sound controlled car
>
...
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@@ -110,6 +111,7 @@
>The test was conducted on a table where the car was controlled using voice commands. When the car detected the first >spike it would drive forward, when it heard the second it would turn left, on the third it would turn right and on >the fourth it would stop.
>
>As every word has its own sound profile It could be interesting to investigate if the robot could interpret and act >differently on various voice commands. For instance it might be possible for the robot to recognize the difference >in length of words. However if different words are of equal length it might be difficult.
