[file head]:
function varargout=bss_decomp_tvgain(varargin)

> decompose an estimated source into target/interference/noise/artefacts components, assuming the admissible distortion is a time-varying gain.
>
> Usage:
>
> [s_target,e_interf[,e_noise],e_artif]=bss_decomp_tvgain(se,index,S[,N],tvshape,tvstep)
>
> Input:
> - se: row vector of length T containing the estimated source,
> - index: points which component of S se has to be compared to,
> - S: n x T matrix containing the original sources,
> - N: m x T matrix containing the noise on the obseravtions (if any).
> - tvshape : row vector of length V at most T containing the shape of the elementary
> allowed time variations of the gain
> - tvstep : hop size (in number of samples) between two consecutive
> variations of the gain
>
> Output:
> - s_target: row vector of length T containing the target source(s)
> contribution,
> - e_interf: row vector of length T containing the interferences
> contribution,
> - e_noise:
... ...

[file tail]:
... ...
row vector of length T containing the noise contribution (if
> any),
> - e_artif: row vector of length T containing the artifacts
> contribution.
>
> Developers: - Cedric Fevotte (cf269@cam.ac.uk) - Emmanuel Vincent
> (vincent@ircam.fr) - Remi Gribonval (remi.gribonval@irisa.fr)

switch nargin
case 5
[varargout{1},varargout{2},varargout{3}]=bss_decomp_tvfilt(varargin{1},varargin{2},varargin{3},varargin{4},varargin{5},0);
case 6
[varargout{1},varargout{2},varargout{3},varargout{4}]=bss_decomp_filt(varargin{1},varargin{2},varargin{3},varargin{4},varargin{5},varargin{6},0);
otherwise
disp('Wrong number of arguments.')
end