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1 /*
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2 Copyright (c) Applied Psychology Unit, Medical Research Council. 1988, 1989
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3 ===========================================================================
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4
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5 Permission to use, copy, modify, and distribute this software without fee
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6 is hereby granted for research purposes, provided that this copyright
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7 notice appears in all copies and in all supporting documentation, and that
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8 the software is not redistributed for any fee (except for a nominal shipping
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9 charge). Anyone wanting to incorporate all or part of this software in a
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10 commercial product must obtain a license from the Medical Research Council.
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11
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12 The MRC makes no representations about the suitability of this
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13 software for any purpose. It is provided "as is" without express or implied
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14 warranty.
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15
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16 THE MRC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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17 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL THE
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18 A.P.U. BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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19 DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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20 AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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21 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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22 */
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23
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24 /*
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25 Acknowledgment:
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26 ==============
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27
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28 The source code provided in this file was originally developed by
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29 Christian Giguere as part of a Ph.D degree at the Department of
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30 Engineering of the University of Cambridge from April 1990 to
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31 November 1993. The code was subsequently adapted under a grant
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32 from the Hearing Research Trust for full compatibility with
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33 AIM Release 6.15.
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34
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35 Christian Giguere 25/03/94
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36
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37 */
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38
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39 /*
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40 ===========================================================
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41 meddis.h
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42 ===========================================================
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43
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44 Implementation of Ray Meddis haircell model.
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45
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46 Author : Christian Giguere
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47 First written : 10th September, 1991
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48 Last edited : 07th March, 1994
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49
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50 Note - This is a complete re-write of the original file
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51 "haircell.h" Release 3 (20th September 1988) from
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52 J. Holdsworth and the Applied Psychology Unit.
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53 ============================================================
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54 */
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55
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56 #ifndef _MEDDIS_H_
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57
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58
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59 /***** defines *****/
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60
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61 #define _MEDDIS_H_
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62
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63 #define MEDDIS_dB ( 30.0 ) /* Meddis et al. (1990 ) scaling */
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64 #define MEDDIS_RMS ( 1.0 )
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65 #define MEDDIS_SCALE ( 20.0 ) /* Arbitrary output scaling factor */
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66
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67 /***** externals *****/
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68
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69 extern char *NewHaircells() ;
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70 extern int DoHaircells() ;
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71 extern void CloseHaircells() ;
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72
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73 #endif
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74
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