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Highlights from
Echo Canceller Workbook targeting a dsPIC

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Echo Canceller Workbook targeting a dsPIC

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22 Jan 2008 (Updated )

This set of models and word documents show an echo canceller development workflow.

ec_concept_data.m
% Echo Cancellation Data Specification
% This file is connected to the Simulink model through
% File/Model Properties/Callbacks/PreLoadFcn
%   Copyright 2008 The MathWorks, Inc.

% Model parameters
load sm_filt;  % spkr_to_mic_filter coefficients
sm_length = length(spkr_to_mic_filter);  % variable from sm_filt mat file
spkr_to_mic_delay = spkr_to_mic_delay;    % also part of sm_file file
pic_frame_size = 80;
Fs = 8000;
Ts = 1/Fs;

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