Date: Wed, 18 Jul 2001 11:45:59 -0400 From: Brian Reichert <reichert@numachi.com> To: Christoph Kukulies <kuku@gilberto.physik.rwth-aachen.de> Cc: multimedia@freebsd.org Subject: Re: writing a sine to a .wav Message-ID: <20010718114559.Q49286@numachi.com> In-Reply-To: <200107181542.f6IFgtl63993@gilberto.physik.rwth-aachen.de>; from kuku@gilberto.physik.rwth-aachen.de on Wed, Jul 18, 2001 at 05:42:55PM %2B0200 References: <200107181542.f6IFgtl63993@gilberto.physik.rwth-aachen.de>
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On Wed, Jul 18, 2001 at 05:42:55PM +0200, Christoph Kukulies wrote:
> Does anyone know of a function (API) or whatever that allows for generating
> .wav data (or .mp3) data out of mathematical functions like sin(x),sin(2x),
> sin(3x) etc.
Well, sox(1) seems to be the switchblade knife for sound file
conversion, and it can accept 'raw' and 'textual' data.
.dat Text Data files
These files contain a textual representation of
the sample data. There is one line at the
beginning that contains the sample rate. Subse-
quent lines contain two numeric data items: the
time since the beginning of the sample and the
sample value. Values are normalized so that the
maximum and minimum are 1.00 and -1.00. This
file format can be used to create data files for
external programs such as FFT analyzers or graph
routines. SoX can also convert a file in this
format back into one of the other file formats.
I have no idea if that's useful for you, though...
> --
> Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de
>
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--
Brian 'you Bastard' Reichert <reichert@numachi.com>
37 Crystal Ave. #303 Daytime number: (603) 434-6842
Derry NH 03038-1713 USA Intel architecture: the left-hand path
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