the real answer however is that the wavelengths are recorded when a person is talking. so now you know that sound is not just recorded "by a computer" stupid.
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The block of wood in the mouth piece of a musical instrument called a recorder is called a fipple. The air vibrates over then under the fipple by the Bernoulli principal causing a vibration in the tube of air inside the recorder. The pitch is regulated by covering holes which in turn lengthen and shorten the length of vibrating air.
why do you need a sound recorder
a high sound
you can't play chords on a recorder....
It is, but it doesn't sound the same. All you do is breath into the holes on the recorder. It makes pretty cool music.
If all the holes are open, that will produce the highest sound.