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CD ROM Paradise Collection 4 1995 Nov.iso
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SDX.DOC
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1994-03-15
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SDX version 1.03
NAME
sdx - Sample Dump eXchange - SDS sample converter
SYNOPSIS
convert: sdx [ edit options ] infile outfile
display: sdx [ display options ] infile
edit: sdx edit options infile
Edit options:
/name name SDX SMP
/note note SDX SMP
/channel channel SDS SDX
/number number SDS SDX
/format bits SDS SDX SMP WAV
/loopstart pos SDS SDX SMP
/loopend pos SDS SDX SMP
/looptype type SDS SDX SMP
Display options:
/data
/audio
DESCRIPTION
Converts audio samples to or from the Sample Dump
Standard format. This version supports the file
formats .SDS, .SDX, .SMP and .WAV (see file formats
and filenames).
OPERATIONS
There are three operations:
- convert/copy infile to outfile
- display file header
- edit file header
Each operation has a set of options (see options).
The operation is determined by the suntax:
Both infile and outfile convert/copy
specified
infile, no options or display
just display options
infile, edit options edit
OVERWRITE (!)
If you want to overwrite an existing file you have to
write a '!' after the outfile-name:
=> SDX frog.sdx frog.wav!
FILENAMES
The filename's extension (.xxx) determines the file format.
The extension must be one of the following: SDS, SDX, SMP or
WAV (see file formats).
If no extension is given for the sourcefile (infile) the
program will look for filenames matching any of the extensions.
If more than one file is found, an error will be displayed, and
you have to retype the command using the complete filename.
If no extension is given for the destination file (outfile) in
a convert operation, the destination file will be in the SDX
format.
OPTIONS
Edit (and convert) options:
/name name
change sample name (SDX and SMP only).
=> sdx frog.sdx /name 'Toad Hall'
/note note
change text note (SDX and SMP only). May be up to
255 characters long.
/channel midichannel
change midi channel (SDS, SDX). Default is 1.
/number samplenumber
change sample number (SDS, SDX). Default is 0.
/format bits
converts sample format to bits (SDS, SDX, SMP, WAV).
Sample format can be from 1 to 16.
/loopstart pos
set loop start point (SDS, SDX, SMP). Default is 0.
/loopend pos
set loop end point (SDS, SDX, SMP). Default is sample
length -1.
/looptype type
set loop type (SDS, SDX, SMP). Loop types are: FWD
(foreward), ALT (alternating = foreward/backward)
and NO (no loop / one-shot). Default is NO.
Display options:
/data
display header data.
/audio
display audio data as ASCII-art.
FILE FORMATS
The file format are determined by the file's extension.
Currently these formats are supported:
.SDS The MIDI Sample Dump Standard was adopted in
January 1986 by the MIDI Manufacturers Association
and the Japanese MIDI Standards Committee. The SDS
defines the standard method for transfer of sound
sample data between MIDI-equipped devices.
An SDS file can be transfered directly via MIDI to
any sampler/sample-player that supports this
standard (most do).
.SDX The Sample Dump eXchange file format was created
for the SDX program. It can store all of the SDS
header data, and the size will be 50% to 75% of the
SDS file. This is the recommended way to store SDS-
samples.
.SMP The SampleVision file format. This format supports
looping.
Special service for SampleVision and SMP users has
been included. When editing an SMP file or copying
one SMP file to another, all SMP-specific data will
be maintained. This include additional loops,
markers, playback note, SMPTE offset, cycle size and
two reserved bytes. Some of this data will also be
displayed when using the display operation.
.WAV The Microsoft RIFF WAVE file format used in MS-
Windows. This format does not support a sustain
loop.
Documentation on the .SDS and .SDX file formats can be found at
alf.uib.no [129.177.30.3] in directory /pub/midi/sds/doc.
SUSTAIN LOOP
The sustain loop is a vital function in sound samples that
are to be played on a keyboard. A sample can have a loop-start
and a loop-end point. Looks like this:
loop loop
start end
: :
| || | | . || | | | .
|| ||||| || ||| | || | |||||| |||| ||
--||||-|||||||||||--||||||--|||-|-||||||||||||||||-|||||--
|| ||||| || ||| | || | |||||| |||| ||
| || | | || | | |
The sample are played like this:
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > > > > >
...
There are three loop types. Foreward plays loop foreward,
alternating plays loop foreward/backward, and no-loop (one
shot) well, doesn't loop at all.
FILES
The following files are provided with this version of SDX:
SDX.EXE the SDX program
SDX.DOC manual (ASCII)
SDX.PRN manual (for printer)
SDX.WP4 manual (Word Perfect)
SDXSEND.EXE the SdxSend program
SDXSEND.DOC documentation on SdxSens
HISTORY SDX history
TODO future upgrades
REGISTER how to register (free)
NOTICES
March, 1994
Copyright (c) 1993, 1994 Kurt George Gjerde, Bergen
Internet: Kurt.Gjerde@student.uib.no