Integrated program of 4 different kinds of application programs for processing sound signal. 4種類のサウンド信号処理を統合したプログラム.
Dependencies: F746_GUI F746_SAI_IO FrequencyResponseDrawer SD_PlayerSkeleton UIT_FFT_Real
MyGraphicEqualizer/GrEqDesignerDrawer.cpp
- Committer:
- MikamiUitOpen
- Date:
- 2017-03-17
- Revision:
- 11:5eb943ee9b91
- Parent:
- 0:224dccbc4edd
File content as of revision 11:5eb943ee9b91:
//------------------------------------------------------------------------------ // イコライザ用フィルタのパラメータを設定し,その周波数特性を描画するためのクラス // // 2017/03/16, Copyright (c) 2017 MIKAMI, Naoki //------------------------------------------------------------------------------ #include "GrEqDesignerDrawer.hpp" namespace Mikami { // Constructor GrEqDesignerDrawer::GrEqDesignerDrawer(uint16_t x0, uint16_t y0, int bands, float f0, int fs, float db1) : X0_(x0), Y0_(y0), BANDS_(bands), Q_VAL_(1.0f/sqrtf(2.0f)), f0_(bands), ck_(bands), calculator_(bands, fs), frqResp_(bands), drawerObj_(x0, 50.0f, 20000.0f, 128, y0, -18, 18, db1, 6, fs) { for (int n=0; n<bands; n++) f0_[n] = f0*powf(2, n); for (int n=0; n<bands; n++) ck_[n] = calculator_.Execute(n, f0_[n], 0, Q_VAL_); frqResp_.SetParams(ck_); } // 周波数特性の描画 void GrEqDesignerDrawer::DrawResponse() { drawerObj_.DrawAxis(); // 目盛線の描画 FrqRespDrawer::AxisX_Char numX[] = // 横軸の目盛値を描画する際に使う構造体の配列 {{ 50, "50"}, { 100, "100"}, { 200, "200"}, { 500, "500"}, { 1000, "1k"}, { 2000, "2k"}, { 5000, "5k"}, {10000, "10k"}, {20000, "20k"}}; drawerObj_.DrawNumericX(numX, 9, 6, "Frequency [Hz]"); // 横軸の目盛 drawerObj_.DrawNumericY(-24, -6, 6, "%3d"); // 縦軸の目盛値は 6 dB 間隔 drawerObj_.DrawGraph(frqResp_); // 周波数特性のカーブの描画 } // 周波数特性の平坦化と描画 void GrEqDesignerDrawer::DrawFlat() { for (int n=0; n<BANDS_; n++) ck_[n] = calculator_.Execute(n, f0_[n], 0, Q_VAL_); frqResp_.SetParams(ck_); drawerObj_.Erase(); drawerObj_.DrawAxis(); // 目盛線の描画 drawerObj_.DrawGraph(frqResp_); // 周波数特性のグラフのカーブを描画する } // 特定のバンドのイコライザ用フィルタのパラメータの設定と周波数特性の再描画 void GrEqDesignerDrawer::DesignAndRedraw(float gainDb, int n) { ck_[n] = calculator_.Execute(n, f0_[n], gainDb, Q_VAL_); frqResp_.SetParam(ck_[n], n); drawerObj_.Erase(); drawerObj_.DrawAxis(); // 目盛線の描画 drawerObj_.DrawGraph(frqResp_); // 周波数特性のグラフのカーブを描画する } }