不韋 呂 / Mbed 2 deprecated F746_AudioPlayerSD

Output the audio signal (*.bin) with filtering by IIR filter in the SD card using onboard CODEC. For *.wav file, F746_SD_WavPlayer and F746_SD_GraphicEqualiser are published on mbed. SD カードのオーディオ信号 (*.bin) を遮断周波数可変の IIR フィルタを通して，ボードに搭載されているCODEC で出力する．*.wav 形式のファイル用には，F746_SD_WavPlayer と F746_SD_GraphicEqualiser を mbed で公開している．

Dependencies:   BSP_DISCO_F746NG_patch_fixed F746_GUI LCD_DISCO_F746NG SDFileSystem_Warning_Fixed TS_DISCO_F746NG mbed

MyClasses_Functions/FrquencyResponseDrawer.cpp@5:4a99dabc9180, 2016-04-17 (annotated)

Committer:
MikamiUitOpen
Date:
Sun Apr 17 08:44:43 2016 +0000
Revision:
5:4a99dabc9180
Parent:
4:76aa20fb326a 
6

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 4:76aa20fb326a 1 //-----------------------------------------------------------
MikamiUitOpen 5:4a99dabc9180 2 // 周波数が対数スケールの周波数特性を描画するクラス
MikamiUitOpen 4:76aa20fb326a 3 // FrqRespDrawer class
MikamiUitOpen 4:76aa20fb326a 4 //
MikamiUitOpen 5:4a99dabc9180 5 // 2016/04/17, Copyright (c) 2016 MIKAMI, Naoki
MikamiUitOpen 4:76aa20fb326a 6 //-----------------------------------------------------------
MikamiUitOpen 4:76aa20fb326a 7
MikamiUitOpen 4:76aa20fb326a 8 #include "FrquencyResponseDrawer.hpp"
MikamiUitOpen 4:76aa20fb326a 9
MikamiUitOpen 4:76aa20fb326a 10 namespace Mikami
MikamiUitOpen 4:76aa20fb326a 11 {
MikamiUitOpen 4:76aa20fb326a 12 // 目盛線の描画
MikamiUitOpen 4:76aa20fb326a 13 void FrqRespDrawer::DrawAxis()
MikamiUitOpen 4:76aa20fb326a 14 {
MikamiUitOpen 4:76aa20fb326a 15 uint16_t height = DB1_*(MAX_DB_ - MIN_DB_);
MikamiUitOpen 4:76aa20fb326a 16 int logMin = (int)floorf(log10f(MIN_));
MikamiUitOpen 4:76aa20fb326a 17 int loop = (int)floorf(log10f(MAX_)) - logMin;
MikamiUitOpen 4:76aa20fb326a 18
MikamiUitOpen 4:76aa20fb326a 19 lcd_->SetTextColor(AXIS_COLOR_);
MikamiUitOpen 4:76aa20fb326a 20 uint16_t y0 = ORGY_ - height;
MikamiUitOpen 4:76aa20fb326a 21 lcd_->DrawVLine(X(MIN_), y0, height); // 最小値に対応する線
MikamiUitOpen 4:76aa20fb326a 22
MikamiUitOpen 4:76aa20fb326a 23 float du = powf(10.0, logMin); // 座標値の増分
MikamiUitOpen 4:76aa20fb326a 24 float u1 = (floorf(MIN_/du) + 1.0f)*du; // 最小値に対応する線の次の座標値
MikamiUitOpen 4:76aa20fb326a 25
MikamiUitOpen 4:76aa20fb326a 26 for (int n=0; n<=loop; n++)
MikamiUitOpen 4:76aa20fb326a 27 {
MikamiUitOpen 4:76aa20fb326a 28 float uMax = (10.0f*du < MAX_) ? 10.0f*du : MAX_;
MikamiUitOpen 4:76aa20fb326a 29 for (float u=u1; u<uMax*0.99f; u+=du)
MikamiUitOpen 4:76aa20fb326a 30 lcd_->DrawVLine(X(u), y0, height);
MikamiUitOpen 4:76aa20fb326a 31
MikamiUitOpen 4:76aa20fb326a 32 du = uMax; // 値の増分を 10 倍する
MikamiUitOpen 4:76aa20fb326a 33 u1 = du; // 次の for ループ の最初の値
MikamiUitOpen 4:76aa20fb326a 34 }
MikamiUitOpen 4:76aa20fb326a 35
MikamiUitOpen 4:76aa20fb326a 36 lcd_->DrawVLine(X(MAX_), y0, height); // 最大値に対応する線
MikamiUitOpen 4:76aa20fb326a 37
MikamiUitOpen 4:76aa20fb326a 38 uint16_t width = X(MAX_) - X(MIN_);
MikamiUitOpen 4:76aa20fb326a 39 for (int n=0; n<= (MAX_DB_ - MIN_DB_)/10; n++)
MikamiUitOpen 4:76aa20fb326a 40 lcd_->DrawHLine(X(MIN_), ORGY_-DB10_*n, width);
MikamiUitOpen 4:76aa20fb326a 41 }
MikamiUitOpen 4:76aa20fb326a 42
MikamiUitOpen 4:76aa20fb326a 43 // 縦軸の数値の表示
MikamiUitOpen 4:76aa20fb326a 44 void FrqRespDrawer::DrawNumericY(int offsetX, int offsetY, int count,
MikamiUitOpen 4:76aa20fb326a 45 uint16_t d_dB, const char fmt[], sFONT &fonts,
MikamiUitOpen 4:76aa20fb326a 46 uint32_t textColor)
MikamiUitOpen 4:76aa20fb326a 47 {
MikamiUitOpen 4:76aa20fb326a 48 uint16_t x0 = ORG_ + offsetX;
MikamiUitOpen 4:76aa20fb326a 49 uint16_t y0 = ORGY_ + offsetY;
MikamiUitOpen 4:76aa20fb326a 50 for (int n=0; n<count; n++)
MikamiUitOpen 5:4a99dabc9180 51 NumericLabel<int> num(x0, y0-n*d_dB*DB1_,
MikamiUitOpen 4:76aa20fb326a 52 fmt, (int)(MIN_DB_+d_dB*n));
MikamiUitOpen 4:76aa20fb326a 53 }
MikamiUitOpen 4:76aa20fb326a 54
MikamiUitOpen 4:76aa20fb326a 55 // 周波数特性のグラフの描画
MikamiUitOpen 5:4a99dabc9180 56 void FrqRespDrawer::DrawGraph(FrequencyResponse &frqResp, uint32_t color)
MikamiUitOpen 4:76aa20fb326a 57 {
MikamiUitOpen 5:4a99dabc9180 58 lcd_->SetTextColor(color);
MikamiUitOpen 4:76aa20fb326a 59 uint16_t width = X(MAX_) - X(MIN_);
MikamiUitOpen 4:76aa20fb326a 60 uint16_t x1 = 0;
MikamiUitOpen 4:76aa20fb326a 61 uint16_t y1 = 0;
MikamiUitOpen 4:76aa20fb326a 62 float pi2FsM = -6.283185f/FS_; // -2*PI*Ts
MikamiUitOpen 4:76aa20fb326a 63 for (int n=0; n<=width; n++)
MikamiUitOpen 4:76aa20fb326a 64 {
MikamiUitOpen 4:76aa20fb326a 65 float frq = PosToFrq(n+ORG_);
MikamiUitOpen 4:76aa20fb326a 66 uint16_t x2 = X(frq);
MikamiUitOpen 4:76aa20fb326a 67 float absHz = frqResp.AbsH_z(exp(Complex(0, pi2FsM*frq)));
MikamiUitOpen 4:76aa20fb326a 68 float dB = (absHz > 0.001f) ? 20.0f*log10f(absHz) : MIN_DB_;
MikamiUitOpen 4:76aa20fb326a 69 uint16_t y2 = ORGY_ - Round((dB - MIN_DB_)*DB1_);
MikamiUitOpen 4:76aa20fb326a 70 if (y2 > ORGY_) y2 = ORGY_;
MikamiUitOpen 4:76aa20fb326a 71
MikamiUitOpen 4:76aa20fb326a 72 if (n != 0) lcd_->DrawLine(x1, y1, x2, y2);
MikamiUitOpen 4:76aa20fb326a 73
MikamiUitOpen 4:76aa20fb326a 74 x1 = x2;
MikamiUitOpen 4:76aa20fb326a 75 y1 = y2;
MikamiUitOpen 4:76aa20fb326a 76 }
MikamiUitOpen 4:76aa20fb326a 77 lcd_->SetTextColor(AXIS_COLOR_);
MikamiUitOpen 4:76aa20fb326a 78 lcd_->DrawHLine(X(MIN_), ORGY_, width);
MikamiUitOpen 4:76aa20fb326a 79 }
MikamiUitOpen 4:76aa20fb326a 80
MikamiUitOpen 4:76aa20fb326a 81 // 消去
MikamiUitOpen 4:76aa20fb326a 82 void FrqRespDrawer::Erase()
MikamiUitOpen 4:76aa20fb326a 83 {
MikamiUitOpen 4:76aa20fb326a 84 lcd_->SetTextColor(BACK_COLOR_);
MikamiUitOpen 4:76aa20fb326a 85 uint16_t height = DB1_*(MAX_DB_ - MIN_DB_);
MikamiUitOpen 4:76aa20fb326a 86 lcd_->FillRect(ORG_, ORGY_- height, X(MAX_)-X(MIN_)+1, height+1);
MikamiUitOpen 4:76aa20fb326a 87 }
MikamiUitOpen 4:76aa20fb326a 88 }
MikamiUitOpen 5:4a99dabc9180 89