不韋 呂 / Mbed 2 deprecated DSP_GraphicEqualizerB

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Dependencies:   mbed SerialTxRxIntr DSP_MultirateLinearphase

GraphicEqualizer/GraphicEqualizer.cpp

Committer:
MikamiUitOpen
Date:
2022-03-30
Revision:
2:e97eaf13aa89
Parent:
0:b3c94b253ae5

File content as of revision 2:e97eaf13aa89:

//--------------------------------------------------------------
//  グラフィックイコライザのクラス
//      フィルらの係数を設定しない場合は，出力は出ない
//
//  2022/02/19, Copyright (c) 2022 MIKAMI, Naoki
//--------------------------------------------------------------

#include "GraphicEqualizer.hpp"

namespace Mikami
{
    // コンストラクタ
    GrEqualizer::GrEqualizer(int bands, float fs, float qVal)
        : BANDS_(bands), Q_VAL_(qVal),
          biquad_(bands), f0_(bands)
    {
        for (int n=0; n<BANDS_; n++) f0_[n] = 62.5f*powf(2, n);
        SetOff();
        Validate();
    }

    // グラフィック･イコライザの実行
    float GrEqualizer::Filtering(float xn)
    {
        float yn = xn;
        for (int n=0; n<BANDS_; n++)
            yn = biquad_[n].Execute(yn);
        return yn;
    }
}