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1 .TH STEP 1 "1 September 1993"
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2
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3 .SH NAME
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4 step \- generate a step waveform.
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5
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6 .SH SYNTAX
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7 step [options]
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8
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9 .SH DESCRIPTION
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10 Generate a step up or down of given amplitude at a given shift from the origin
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11 (start of waveform), and write the resulting waveform on the stdout in the
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12 given datatype.
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13
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14 .SH OPTIONS
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15
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16 1. shift
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17
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18 The position of the step (up or down) relative to the start of the waveform.
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19 The shift can be in samples (no units) or can take time units
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20 (using the samplerate option).
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21
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22 2. amplitude
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23
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24 The height of the step.
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25
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26 3. polarity
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27
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28 The direction of the step: up (zero before the step and `amplitude' after)
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29 or down (`amplitude' before the step and zero after).
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30
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31 4. duration
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32
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33 The duration of the output wave, including the shift to the step.
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34 The duration can be in samples (no units) or can take time units
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35 (using the samplerate option).
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36
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37 5. type
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38
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39 The output datatype. This may be any of: char, short, int, float, double,
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40 ascii (meaning one ascii number per line).
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41
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42 .SH "SEE ALSO"
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43 .LP
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44 options ptrain merge
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45 .SH COPYRIGHT
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46 .LP
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47 Copyright (c) Applied Psychology Unit, Medical Research Council, 1995
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48 .LP
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49 Permission to use, copy, modify, and distribute this software without fee
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50 is hereby granted for research purposes, provided that this copyright
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51 notice appears in all copies and in all supporting documentation, and that
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52 the software is not redistributed for any fee (except for a nominal
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53 shipping charge). Anyone wanting to incorporate all or part of this
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54 software in a commercial product must obtain a license from the Medical
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55 Research Council.
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56 .LP
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57 The MRC makes no representations about the suitability of this
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58 software for any purpose. It is provided "as is" without express or
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59 implied warranty.
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60 .LP
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61 THE MRC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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62 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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63 THE A.P.U. BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES
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64 OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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65 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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66 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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67 SOFTWARE.
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68
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