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- Path: sparky!uunet!gatech!concert!aurs01!whitcomb
- From: whitcomb@aurs01.UUCP (Jonathan Whitcomb)
- Newsgroups: comp.sys.atari.st
- Subject: Re: (none)
- Message-ID: <61153@aurs01.UUCP>
- Date: 11 Sep 92 19:59:19 GMT
- References: <2250597@overmind.citadel>
- Sender: news@aurs01.UUCP
- Reply-To: whitcomb@aurxc3.aur.alcatel.com.UUCP (Jonathan Whitcomb)
- Organization: Alcatel Network Systems, Raleigh NC
- Lines: 17
-
- In article <2250597@overmind.citadel> only_bbs!arthur_dent@overmind.mind.org writes:
- >Actually, it
- >depends on your definition of accuracy. If you use a sampling frequency
- >twice that of the sine wave's frequency, it would end up as a triangle wave.
- > At three times the frequency, you would get a square wave. Therefore, to
- >retain the shape of the sine wave, you would need a frequency of at least 5
- >times that of the sound itself.
-
- Wow! I'm afraid you've got this backwards. A sine wave has a single
- frequency, where square waves and triangle waves may be constructed by
- infinite sum of sine waves of *higher* frequencies. This is called a
- Fourier series. A sine wave can be completely described by a single
- frequency component.
- **********************************************************************
- Jonathan Whitcomb UUCP: <whitcomb%aurgate@mcnc.org>
- Alcatel Network Systems Delphi: JBWHIT
- Raleigh, NC GEnie: J.WHITCOMB3
-