AMGETDATA This function computes the LAM transfer function (Implemented as a mex function) AMGETDATA calculates the area functions, the transfer function, the formants, bandwidths and amplitudes for the given set of LAM parameters. In addition it also returns two varaibles p1 and p2 which can be used to plot the outline of the vocal tract using the function plot_lam. Input Parameters: TC : tract configuration from gettc PC : physical constants from getpc AMpar : LAM parameters vector size(1,8) Note : data is defined in vtsimul Output Parameters: af : area functions tf : transfer function f : formants b : bandwidths a : amplitudes p1 : plotting parameters for plot_lam p2 : plotting parameters for plot_lam Usage: [Af,Tf,F,B,A,P1,P2] = AMgetdata(... gettc(data.TC),... getpc(data.PC),... [data.AMpar.ampar,data.AMpar.anc]);
0001 function [af,tf,f,b,a,p1,p2] = AMgetdata(TC,PC,AMpar) 0002 % AMGETDATA This function computes the LAM transfer function 0003 % (Implemented as a mex function) 0004 % 0005 % AMGETDATA calculates the area functions, the transfer 0006 % function, the formants, bandwidths and amplitudes for 0007 % the given set of LAM parameters. In addition it also 0008 % returns two varaibles p1 and p2 which can be used to 0009 % plot the outline of the vocal tract using the function 0010 % plot_lam. 0011 % 0012 % Input Parameters: 0013 % TC : tract configuration from gettc 0014 % PC : physical constants from getpc 0015 % AMpar : LAM parameters vector size(1,8) 0016 % Note : data is defined in vtsimul 0017 % 0018 % Output Parameters: 0019 % af : area functions 0020 % tf : transfer function 0021 % f : formants 0022 % b : bandwidths 0023 % a : amplitudes 0024 % p1 : plotting parameters for plot_lam 0025 % p2 : plotting parameters for plot_lam 0026 % 0027 % Usage: 0028 % [Af,Tf,F,B,A,P1,P2] = AMgetdata(... 0029 % gettc(data.TC),... 0030 % getpc(data.PC),... 0031 % [data.AMpar.ampar,data.AMpar.anc]); 0032 0033 % Copyright (c) 1999 Satrajit S. Ghosh (satra@bu.edu) 0034 % Department of Cognitive and Neural Systems, Boston University 0035 0036 % $Revision: 1.1.1.1 $ $Date: 2006/10/06 18:20:23 $ 0037 0038 % Bug fixes 0039 0040 % Modifications