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tomwalters@0
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1 % parameter file for 'aim-mat'
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2 %
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3 %
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4 % (c) 2011, University of Southampton
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bleeck@3
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5 % Maintained by Stefan Bleeck (bleeck@gmail.com)
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bleeck@3
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6 % download of current version is on the soundsoftware site:
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bleeck@3
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7 % http://code.soundsoftware.ac.uk/projects/aimmat
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bleeck@3
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8 % documentation and everything is on http://www.acousticscale.org
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9
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10 %%%%%%%%%%%%%
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11 % bmm
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12 % hidden parameters
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13 pzfc.generatingfunction='gen_pzfc';
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14 pzfc.displayname='Pole-Zero Filter Cascade';
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15 pzfc.revision='$Revision: $';
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16
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17 pzfc.default_nextmodule='hl';
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18
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19 % parameters relevant for the calculation of this module
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20 pzfc.lowest_frequency=100; % in Hz
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21 pzfc.highest_frequency=6000; % in Hz
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22
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23 pzfc.segment_length=200;
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24
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25 pzfc.erb_scale=1; % 1 to use ERB scale, 0 to use Lyon's original scale
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26
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27 pzfc.stepfactor=1/3; % step factor between channels
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28
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29 pzfc.pdamp=0.12;
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30 pzfc.zdamp=0.2;
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31 pzfc.zfactor=1.4;
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32 pzfc.bw_over_cf=0.11; % only used when erb_scale==0
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33 pzfc.bw_min_hz=27; %only used when erb_scale==0
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34
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35 pzfc.use_fitted_params=1;
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36
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37 % use fit parameters from specified file
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38 % pzfc.fitted_params='fit524'; % 6 channels per ERB
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39 pzfc.fitted_params='fit516'; % 2 channels per ERB
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40
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41 pzfc.agcfactor=12;
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42
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43 % Parameters for tinkering with the AGC for the filterbank
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44 pzfc.do_agc=1; % Set to 1 to run the AGC as usual. 0 to disable the AGC after the noise excitation stage.
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45 pzfc.pre_excite_with_noise=0; % Set to 1 to run noise through the filterbank before the stimulus
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46 pzfc.pre_excite_time=0.2; % 200ms by default, time in seconds.
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47 pzfc.pre_excite_level_dB=-10; % dB re. max level for the sound file
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48
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