mark_soundview.m

语音信号端点检测方面的源程序

function hfig =mark_soundview(soundData,soundFreq,name)
%SOUNDVIEW View and play sound with replay button
% SOUNDVIEW(FILENAME) Shows figure with sound data while playing sound,
% filename is title.
% SOUNDVIEW(Y,FS) Shows figure with sound data while playing sound.
% SOUNDVIEW(Y,FS,NAME) Same as above using NAME in title.
%
% See also UILOAD, OPEN, MOVIEVIEW, IMAGEVIEW

% Copyright 1984-2003 The MathWorks, Inc.
% $Revision: 1.1.6.2 $  $Date: 2004/04/10 23:32:21 $

error(nargchk(1,3,nargin))

figname = '语音识别';

if ischar(soundData)
    s = importdata(soundData);
    if isstruct(s)
        figname = [figname ' - ' soundData];
        soundData = s.data;
        if isfield(s,'fs')
            soundFreq = s.fs;
        else
            soundFreq = 8192;
        end
    else
        errordlg(['Unable to preview sound in file ' soundData]);
    end
end

if nargin == 3
    figname = [figname ' - ' name];
end

h = figure('menubar','none', ...
           'toolbar','none', ...
           'name',figname, ...
           'numbertitle','off', ...
           'visible','off', ...
           'resize','off', ...
           'color',get(0,'defaultuicontrolbackgroundcolor'), ...
           'userdata',soundData);
if nargout
    hfig = h;
end
set(h,'units','pixels');
ss = get(0,'screensize');
fs = get(h,'position');
b1 = uicontrol('style','pushbutton',...
              'string','Play Again',...
               'HandleVisibility','callback', ...
              'units','pixels',...
              'position',[5 5 100 30],...
              'userdata',soundFreq,...
              'callback','soundsc(get(gcbf,''userdata''),get(gcbo,''userdata''))');

b2 = uicontrol('style','pushbutton',...
              'string','Done',...
               'HandleVisibility','callback', ...
              'units','pixels',...
              'position',[110 5 100 30],...
              'callback','try, close(gcbf), end');
a = gca;
set(a,'visible','off');

btop = 30 + 5;

% resize figure to fit buttons and movie
width = 410 + 80;
height = btop + 5 + 150 + 5 + 40 + 5 + 30;
set(h,'position',[fs(1) fs(2) width height])
fs = get(h,'position');

% recenter figure on screen
set(h,'position',[(ss(3) - fs(3))/2 (ss(4) - fs(4))/2 fs(3) fs(4)])

% recenter buttons on figure
if width ~= 215
    leftGap = 5 + (width - 215) / 2;
    p1 = get(b1,'position');
    set(b1,'position',[leftGap p1(2:end)]);
    p2 = get(b2,'position');
    set(b2,'position',[leftGap + 110 p2(2:end)]);
end

% plot signal
plot(soundData,'r');

% place axis
pos = get(a,'pos');
axis('tight')
set(get(gca,'title'),'color','k','interpreter','none')
set(a,'units','pixels','color','white','xcolor','k','ycolor','k',...
      'position',[5 + 40 btop + 40 400 150]);
if nargin == 3
    title([name ' - ' num2str(length(soundData)) ' samples, Fs = ' num2str(soundFreq)])
else
    title(['Sound data - ' num2str(length(soundData)) ' samples, Fs = ' num2str(soundFreq)])
end

set(h,'visible','on')

if nargout == 0
    set(h,'HandleVisibility','callback');
end

try
    soundsc(soundData, soundFreq)
catch
    % throw error unless window was closed 
    if ishandle(h)
        delete(h)
        error(lasterr)
    end
end