tomwalters@0: .TH STEP 1 "1 September 1993"
tomwalters@0: 
tomwalters@0: .SH NAME
tomwalters@0: step \- generate a step waveform.
tomwalters@0: 
tomwalters@0: .SH SYNTAX 
tomwalters@0: step [options]
tomwalters@0: 
tomwalters@0: .SH DESCRIPTION
tomwalters@0: Generate a step up or down of given amplitude at a given shift from the origin
tomwalters@0: (start of waveform), and write the resulting waveform on the stdout in the
tomwalters@0: given datatype.
tomwalters@0: 
tomwalters@0: .SH OPTIONS
tomwalters@0: 
tomwalters@0: 1. shift
tomwalters@0: 
tomwalters@0: The position of the step (up or down) relative to the start of the waveform.
tomwalters@0: The shift can be in samples (no units) or can take time units
tomwalters@0: (using the samplerate option).
tomwalters@0: 
tomwalters@0: 2. amplitude
tomwalters@0: 
tomwalters@0: The height of the step.
tomwalters@0: 
tomwalters@0: 3. polarity
tomwalters@0: 
tomwalters@0: The direction of the step: up (zero before the step and `amplitude' after)
tomwalters@0: or down (`amplitude' before the step and zero after).
tomwalters@0: 
tomwalters@0: 4. duration
tomwalters@0: 
tomwalters@0: The duration of the output wave, including the shift to the step.
tomwalters@0: The duration can be in samples (no units) or can take time units
tomwalters@0: (using the samplerate option).
tomwalters@0: 
tomwalters@0: 5. type
tomwalters@0: 
tomwalters@0: The output datatype. This may be any of: char, short, int, float, double,
tomwalters@0: ascii (meaning one ascii number per line).
tomwalters@0: 
tomwalters@0: .SH "SEE ALSO"
tomwalters@0: .LP
tomwalters@0: options  ptrain  merge
tomwalters@0: .SH COPYRIGHT
tomwalters@0: .LP
tomwalters@0: Copyright (c) Applied Psychology Unit, Medical Research Council, 1995
tomwalters@0: .LP
tomwalters@0: Permission to use, copy, modify, and distribute this software without fee 
tomwalters@0: is hereby granted for research purposes, provided that this copyright 
tomwalters@0: notice appears in all copies and in all supporting documentation, and that 
tomwalters@0: the software is not redistributed for any fee (except for a nominal 
tomwalters@0: shipping charge). Anyone wanting to incorporate all or part of this 
tomwalters@0: software in a commercial product must obtain a license from the Medical 
tomwalters@0: Research Council.
tomwalters@0: .LP
tomwalters@0: The MRC makes no representations about the suitability of this 
tomwalters@0: software for any purpose.  It is provided "as is" without express or 
tomwalters@0: implied warranty.
tomwalters@0: .LP
tomwalters@0: THE MRC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 
tomwalters@0: ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL 
tomwalters@0: THE A.P.U. BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES 
tomwalters@0: OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 
tomwalters@0: WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 
tomwalters@0: ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 
tomwalters@0: SOFTWARE.
tomwalters@0: