tomwalters@0: % method of class @signal
tomwalters@0: % 
tomwalters@0: %   INPUT VALUES:
tomwalters@0: %  
tomwalters@0: %   RETURN VALUE:
tomwalters@0: %
tomwalters@0: % 
bleeck@3: % This external file is included as part of the 'aim-mat' distribution package
bleeck@3: % (c) 2011, University of Southampton
bleeck@3: % Maintained by Stefan Bleeck (bleeck@gmail.com)
bleeck@3: % download of current version is on the soundsoftware site: 
bleeck@3: % http://code.soundsoftware.ac.uk/projects/aimmat
bleeck@3: % documentation and everything is on http://www.acousticscale.org
bleeck@3: 
tomwalters@0: 
tomwalters@0: function sig=hilbertenvelope(a)
tomwalters@0: 
tomwalters@0: sr=getsr(a);
tomwalters@0: duration=getlength(a);
tomwalters@0: 
tomwalters@0: sig=signal(duration,sr);
tomwalters@0: sig.name=sprintf('Hilbert Envelope of %s',a.name);
tomwalters@0: 
tomwalters@0: b=hilbert(a.werte);
tomwalters@0: sig.werte=abs(b);