w5_ed_sm.m

这是一个用于语音信号处理的工具箱

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%
%	w5_edit_smooth.m
%
%	jmw
%	6/20/94
%
%       User-Specified Maps:  Edit Window
%	this checks requests and requirements for smoothing and
%	smooths user-map (i.e. connect the target dots) if necessary
%
%	Kind of serves two purposes: (1) as a callback for smooth
%	button, and (2) as a general purpose program to assess if smoothing
%	is req'd and re-display if necessary ...
%
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SMOOTHVALUE = get(w5_edit_smooth_h,'Value');

if (SMOOTHVALUE == OLDSMOOTHVALUE & TARGET_SMOOTH == 0)
	;
	% do nothing, same value, no change, AND no request for smoothing
else 	

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% automatically adjust Smoothing method if Poly Order is too high
% for the number of targets

if (TARGETVALUE == 1 & SMOOTHVALUE > 2)
	SMOOTHVALUE = 2;
	set(w5_edit_smooth_h,'Value',SMOOTHVALUE);

elseif (TARGETVALUE == 2 & SMOOTHVALUE > 3)
	SMOOTHVALUE = 3;
	set(w5_edit_smooth_h,'Value',SMOOTHVALUE);
end;	

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% make "smooth" user waveform

if (SMOOTHVALUE == 1 )
	% no smoothing; piecewise straight
	[t_m,t_n]=size(target);
	for i=1:t_m-1,
		top_y = target(i+1,2); 
		bottom_y = target(i,2);
		top_x = target(i+1,1);
		bottom_x = target(i,1);
		target_slope = (top_y -bottom_y) / (top_x - bottom_x);

		for j=bottom_x:(top_x - 1),
			%user(j) = ( (target_slope * (j-bottom_x)));
			user(j) = (target_slope*(j-bottom_x)) + bottom_y;

		end;
	end;
	user(100) = target(t_m,2);

elseif (SMOOTHVALUE == 2 )
	% linear
	SMOOTHORDER = 1;
	SMPOLY = polyfit(target(:,1),target(:,2), SMOOTHORDER);
	user = polyval(SMPOLY, [1:1:100]);
elseif (SMOOTHVALUE == 3 )
	% 2nd order poly
	SMOOTHORDER = 2;
	SMPOLY = polyfit(target(:,1),target(:,2), SMOOTHORDER);
	user = polyval(SMPOLY, [1:1:100]);
elseif (SMOOTHVALUE == 4 )
	% 3rd order poly
	SMOOTHORDER = 3;
	SMPOLY = polyfit(target(:,1),target(:,2), SMOOTHORDER);
	user = polyval(SMPOLY, [1:1:100]);
elseif (SMOOTHVALUE == 5 )
	% 4th order poly
	SMOOTHORDER = 4;
	SMPOLY = polyfit(target(:,1),target(:,2), SMOOTHORDER);
	user = polyval(SMPOLY, [1:1:100]);
elseif (SMOOTHVALUE == 6 )
	% 5th order poly
	SMOOTHORDER = 5;
	SMPOLY = polyfit(target(:,1),target(:,2), SMOOTHORDER);
	user = polyval(SMPOLY, [1:1:100]);
end;

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OLDSMOOTHVALUE = SMOOTHVALUE;	% reset
TARGET_SMOOTH = 0;

end;	% end: if (SMOOTHVALUE == OLDSMOOTHVALUE)

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% turn buttons on if NOT the first time window opened

if (FRESHOPENW5 == 1)
	FRESHOPENW5 = 0;
else
	set(w5_edit_update_h,'Visible','on');
	set(w5_edit_cancel_h,'Visible','on');
end;

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w5_ed_di

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clear top_x top_y bottom_x bottom_y target_slope new_target