function show_sfea(feat,transc)
% function show_sfea(feat,lab_list,transc)
%
% shows feature SCALAR (for example loaded from HTK feature file), 
% with with reference transcriptions. 
% feat    - features (matrix)
% transc  - (opt) HTK transcription file (can't work with MLF). Can be ''
%
% very similar to show_fea, but shows a scalar. 

% basic thing, wants it black'n'white 
plot(feat); axis tight; N = length(feat); N 

% read and show transcriptions if available
if (nargin > 1 & ~isempty(transc))
  add_labels(transc);
end
