Re: Frequency Content (Thomas G Brennan )

Subject: Re: Frequency Content
From:    Thomas G Brennan  <g_brennantg(at)TITAN.SFASU.EDU>
Date:    Tue, 30 Jul 2002 15:39:43 -0500

There's a DOS program on my site that will do what you need. Tom Tom Brennan, CCC-A/SLP, RHD web page On Tue, 30 Jul 2002, Marius & Elsabe wrote: > Date: Tue, 30 Jul 2002 19:23:26 +0200 > From: Marius & Elsabe <vulcan(at)PARYS.CO.ZA> > To: AUDITORY(at)LISTS.MCGILL.CA > Subject: Frequency Content > > Hello everyone, > > I am in desperate need of a way to determine the frequency content of a > 'raw' amplitude-time sample. I know that Fourier Transform can do this, but > all of the texts I have read are at the advanced level, and quite frankly I > have no idea what they are talking about. > > The raw data is in the form of a 512 byte array, defined as char > rawdata[512]. This array is continually filled by my microphone audio > grabbing code. Now I need to be able to pass this array to a function which > would fill another array, say fourierdata, with the frequency information. > > If anyone can be of assistance, I would really appreciate it. Specifically, > if you can supply me with C code to implement such a fourier function, I > would be very greatful. > > Thank you, > Marius Myburg >

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