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SDIF2AD(1)			  The Canonical Csound Reference		       SDIF2AD(1)

NAME
       sdif2ad - Converts SDIF files to files usable by adsynt. .

DESCRIPTION
       Convert files Sound Description Interchange Format (SDIF) to the format usable by Csound's
       adsyn opcode. As of Csound version 4.10, sdif2ad was available only as a standalone
       program for Windows console and DOS.

SYNTAX
	   csound -U sdif2ad [flags] infilename outfilename

INITIALIZATION
       Flags:

       o   -sN -- apply amplitude scale factor N

       o   -pN -- keep only the first N partials. Limited to 1024 partials. The source partial
	   track indices are used directly to select internal storage. As these can be arbitrary
	   values, the maximum of 1024 partials may not be realized in all cases.

       o   -r -- byte-reverse output file data. The byte-reverse option is there to facilitate
	   transfer across platforms, as Csound's adsyn file format is not portable.

       If the filename passed to hetro has the extension ".sdif", data will be written in SDIF
       format as 1TRC frames of additive synthesis data. The utility program sdif2ad can be used
       to convert any SDIF file containing a stream of 1TRC data to the Csound adsyn format.
       sdif2ad allows the user to limit the number of partials retained, and to apply an
       amplitude scaling factor. This is often necessary, as the SDIF specification does not, as
       of the release of sdif2ad, require amplitudes to be within a particular range.  sdif2ad
       reports information about the file to the console, including the frequency range.

       The main advantages of SDIF over the adsyn format, for Csound users, is that SDIF files
       are fully portable across platforms (data is "big-endian"), and do not have the duration
       limit of 32.76 seconds imposed by the 16 bit adsyn format. This limit is necessarily
       imposed by sdif2ad. Eventually, SDIF reading will be incorporated directly into adsyn,
       thus enabling files of any length (subject to system memory limits) to be analysed and
       processed.

       Users should remember that the SDIF formats are still under development. While the 1TRC
       format is now fairly well established, it can still change.

       For detailed information on the Sound Description Interchange Format, refer to the CNMAT
       website: http://cnmat.CNMAT.Berkeley.EDU/SDIF

       Some other SDIF resources (including a viewer) are available via the NC_DREAM website:
       http://www.bath.ac.uk/~masjpf/NCD/dreamhome.html

CREDITS
       Author: Richard Dobson

       Somerset, England

       August, 2000

       New in Csound version 4.08

AUTHORS
       Barry Vercoe
       MIT Media Lab

	   Author.

       Dan Ellis
       MIT Media Lab,
		 Cambridge
		 Massachussetts

	   Author.

COPYRIGHT
5.07					    06/23/2009				       SDIF2AD(1)
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