%% Split-Band De-Essing
% This model implements split-band de-essing by separating a speech signal
% into high and low frequencies, applying dynamic range expansion to
% diminish the sibilant frequencies, and then remixing the channels.
%
% De-essing is the process of diminishing sibilant sounds in an audio
% signal. Sibilance refers to the _s_, _z_, and _sh_ sounds in speech,
% which can be disproportionately emphasized during recording. _es_ sounds
% fall under the category of unvoiced speech with all consonants, and have
% a higher frequency than voiced speech.
%
% To explore the model, tune the parameters of the
% <docid:audio_ref#bu_14_a-1 |Expander|> and <docid:audio_ref#bu_1489-1
% |Crossover Filter|> blocks. To switch between listening to the processed
% and unprocessed speech signal, double-click the |Manual Switch| block. To
% view the effect of the processing, double-click the |Time Scope| block.

open_system('SplitbandDeessingModel')

%%
close_system('SplitbandDeessingModel')

%% 
% Copyright 2012 The MathWorks, Inc.