mirror of https://github.com/thesofproject/sof.git
51 lines
2.3 KiB
Matlab
51 lines
2.3 KiB
Matlab
function eq = eq_compute_tot_response(eq)
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%%
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% Copyright (c) 2016, Intel Corporation
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% All rights reserved.
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%
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% Redistribution and use in source and binary forms, with or without
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% modification, are permitted provided that the following conditions are met:
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% * Redistributions of source code must retain the above copyright
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% notice, this list of conditions and the following disclaimer.
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% * Redistributions in binary form must reproduce the above copyright
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% notice, this list of conditions and the following disclaimer in the
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% documentation and/or other materials provided with the distribution.
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% * Neither the name of the Intel Corporation nor the
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% names of its contributors may be used to endorse or promote products
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% derived from this software without specific prior written permission.
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%
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% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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% AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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% IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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% ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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% LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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% CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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% SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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% INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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% CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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% ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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% POSSIBILITY OF SUCH DAMAGE.
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%
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% Author: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
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%
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% FIR response and combined IIR+FIR EQ
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[eq.iir_eq_db, eq.iir_eq_ph, eq.iir_eq_gd] = eq_compute_response(eq.p_z, eq.p_p, eq.p_k, eq.f, eq.fs);
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[eq.fir_eq_db, eq.fir_eq_ph, eq.fir_eq_gd] = eq_compute_response(eq.b_fir, eq.f, eq.fs);
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eq.tot_eq_db = eq.iir_eq_db + eq.fir_eq_db;
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eq.tot_eq_gd = eq.iir_eq_gd + eq.fir_eq_gd;
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% Simulated equalized result
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eq.m_eqd = eq.m_db + eq.tot_eq_db; % Simulated response
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eq.m_eqd_s = eq.m_db_s + eq.tot_eq_db; % Smoothed simulated response
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eq.gd_eqd = eq.gd_s' + eq.tot_eq_gd;
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% Align
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[eq.m_eqd_s, adjust, p] = eq_align(eq.f, eq.m_eqd_s, eq.f_align, eq.db_align);
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eq.m_eqd = eq.m_eqd + adjust;
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eq.m_eq_loss = eq.tot_eq_db(p);
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eq.m_eqd_abs = eq.m_db_abs+eq.m_eq_loss;
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end
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