Re: how do different frequencies playing at the same time get represented?
Re: how do different frequencies playing at the same time get represented?
- Subject: Re: how do different frequencies playing at the same time get represented?
- From: Ben Dougall <email@hidden>
- Date: Sat, 15 Jan 2005 00:03:24 +0000
hello Bob,
...
If you play two different sounds into a microphone separately, you'll
see that each one has its own characteristic wave. If you play them
simultaneously into the mike then the pattern of voltages that comes
out will be very complex, but if you look at it on an oscilloscope
you'll make out that what's actually happening is that (instant by
instant) the two waves are added together to produce a wave that is a
sum of them both.
...
i see, yes that makes complete sense. seems fairly obvious now that
they should get added/summed rather than averaged which is what i was
imagining to start with.
great answer -- thanks very much.
ben.
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