不韋 呂 / F746_SD_GraphicEqualizer

Output the audio signal with filtering by graphic equalizer in the *.wav file on the SD card using onboard CODEC. SD カードの *.wav ファイルのオーディオ信号をグラフィック･イコライザを通して，ボードに搭載されているCODEC で出力する．

Dependencies:   F746_GUI F746_SAI_IO SD_PlayerSkeleton FrequencyResponseDrawer

main.cpp@11:f4929315bc9f, 2016-07-03 (annotated)

Committer:
MikamiUitOpen
Date:
Sun Jul 03 05:29:38 2016 +0000
Revision:
11:f4929315bc9f
Parent:
10:160fcbe4dee8
Child:
13:728576fffe65
12

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:e953eb392151 1 //--------------------------------------------------------------
MikamiUitOpen 0:e953eb392151 2 // グラフィックイコライザ付き SD オーディオプレーヤー
MikamiUitOpen 0:e953eb392151 3 // SD のファイル: *.wav
MikamiUitOpen 0:e953eb392151 4 // PCM，16 ビットステレオ，標本化周波数 44.1 kHz
MikamiUitOpen 0:e953eb392151 5 // 上記以外の形式は扱わない
MikamiUitOpen 11:f4929315bc9f 6 // 出力：モノラル（L+R，左チャンネルのみ，右チャンネルには出力しない）
MikamiUitOpen 0:e953eb392151 7 //
MikamiUitOpen 11:f4929315bc9f 8 // 2016/07/03, Copyright (c) 2016 MIKAMI, Naoki
MikamiUitOpen 0:e953eb392151 9 //--------------------------------------------------------------
MikamiUitOpen 0:e953eb392151 10
MikamiUitOpen 0:e953eb392151 11 #include "MyFunctions.hpp"
MikamiUitOpen 0:e953eb392151 12 #include "BlinkLabel.hpp"
MikamiUitOpen 0:e953eb392151 13
MikamiUitOpen 0:e953eb392151 14 using namespace Mikami;
MikamiUitOpen 0:e953eb392151 15
MikamiUitOpen 0:e953eb392151 16 int main()
MikamiUitOpen 0:e953eb392151 17 {
MikamiUitOpen 11:f4929315bc9f 18 const uint16_t X_CENTER = 214;
MikamiUitOpen 11:f4929315bc9f 19 Label myLabel1(X_CENTER, 4, "9-band Graphic Equalizer", Label::CENTER, Font16);
MikamiUitOpen 11:f4929315bc9f 20 Label myLabel2(X_CENTER, 20, "---- Source: microSD card ----", Label::CENTER);
MikamiUitOpen 0:e953eb392151 21
MikamiUitOpen 0:e953eb392151 22 const int FS = AUDIO_FREQUENCY_44K; // 標本化周波数: 44.1 kHz
MikamiUitOpen 5:a5a4f9d7b26c 23 SaiIO mySai(SaiIO::OUTPUT, 2048, FS);
MikamiUitOpen 0:e953eb392151 24
MikamiUitOpen 0:e953eb392151 25 SD_WavReader sdReader(mySai.GetLength()); // SD カード読み込み用オブジェクト
MikamiUitOpen 0:e953eb392151 26 const int MAX_FILES = 7;
MikamiUitOpen 11:f4929315bc9f 27 FileSelector selector(4, 22, MAX_FILES, 37, sdReader);
MikamiUitOpen 0:e953eb392151 28 if (!selector.CreateTable())
MikamiUitOpen 0:e953eb392151 29 BlinkLabel errLabel(240, 100, "SD CARD ERROR", Label::CENTER);
MikamiUitOpen 0:e953eb392151 30
MikamiUitOpen 0:e953eb392151 31 // ボタン用の定数
MikamiUitOpen 2:2a5c93bf729a 32 const uint16_t BG_LEFT = 414;
MikamiUitOpen 2:2a5c93bf729a 33 const uint16_t BG_WIDTH = 66;
MikamiUitOpen 7:be29ba9c83b2 34 const uint16_t BG_HEIGHT = 36;
MikamiUitOpen 11:f4929315bc9f 35
MikamiUitOpen 0:e953eb392151 36 // ButtonGroup: "OPEN", "PLAY", "PAUSE", "RESUME", "STOP"
MikamiUitOpen 0:e953eb392151 37 const string MENU[5] = {"OPEN", "PLAY", "PAUSE", "RESUME", "STOP"};
MikamiUitOpen 0:e953eb392151 38 ButtonGroup menu(BG_LEFT, 2, BG_WIDTH, BG_HEIGHT,
MikamiUitOpen 0:e953eb392151 39 5, MENU, 0, 2, 1);
MikamiUitOpen 11:f4929315bc9f 40 menu.InactivateAll();
MikamiUitOpen 11:f4929315bc9f 41
MikamiUitOpen 0:e953eb392151 42 menu.Activate(0);
MikamiUitOpen 7:be29ba9c83b2 43 Button flat(BG_LEFT, 197, BG_WIDTH, BG_HEIGHT, "FLAT");
MikamiUitOpen 7:be29ba9c83b2 44
MikamiUitOpen 2:2a5c93bf729a 45 const string ON_OFF[2] = {"ON", "OFF"};
MikamiUitOpen 7:be29ba9c83b2 46 ButtonGroup onOff(BG_LEFT, 235, BG_WIDTH/2, BG_HEIGHT,
MikamiUitOpen 2:2a5c93bf729a 47 2, ON_OFF, 0, 0, 2, 0);
MikamiUitOpen 0:e953eb392151 48
MikamiUitOpen 0:e953eb392151 49 // フィルタの設計と周波数特性描画用
MikamiUitOpen 11:f4929315bc9f 50 const int BANDS = 9; // バンド数
MikamiUitOpen 0:e953eb392151 51 DesignerDrawer drawerObj(
MikamiUitOpen 2:2a5c93bf729a 52 28, // グラフの左端の位置
MikamiUitOpen 0:e953eb392151 53 130, // グラフの下端の位置
MikamiUitOpen 11:f4929315bc9f 54 BANDS, // バンド数
MikamiUitOpen 0:e953eb392151 55 62.5f, // 最低域バンドの中心周波数
MikamiUitOpen 0:e953eb392151 56 FS, // 標本化周波数
MikamiUitOpen 2:2a5c93bf729a 57 2.5f); // 1 dB 当たりのピクセル数
MikamiUitOpen 0:e953eb392151 58
MikamiUitOpen 0:e953eb392151 59 // 周波数特性変更用スライダ
MikamiUitOpen 11:f4929315bc9f 60 SeekbarGroup myBars(drawerObj.GetX0(), 178, 82, BANDS,
MikamiUitOpen 7:be29ba9c83b2 61 drawerObj.GetSpaceX(), -8.0f, 8.0f, 0,
MikamiUitOpen 0:e953eb392151 62 SeekBar::Vertical);
MikamiUitOpen 0:e953eb392151 63
MikamiUitOpen 0:e953eb392151 64 // フィルタの準備
MikamiUitOpen 11:f4929315bc9f 65 BiquadGrEq::Coefs ck[BANDS];
MikamiUitOpen 0:e953eb392151 66 drawerObj.GetCoefficients(ck);
MikamiUitOpen 11:f4929315bc9f 67 BiquadGrEq hn[BANDS];
MikamiUitOpen 11:f4929315bc9f 68 for (int k=0; k<BANDS; k++) hn[k] = BiquadGrEq(ck[k]);
MikamiUitOpen 0:e953eb392151 69
MikamiUitOpen 0:e953eb392151 70 int32_t frameSize = mySai.GetLength();
MikamiUitOpen 0:e953eb392151 71 bool playOk = false;
MikamiUitOpen 2:2a5c93bf729a 72 bool on = true;
MikamiUitOpen 0:e953eb392151 73 bool whileFirst = true;
MikamiUitOpen 0:e953eb392151 74 string fileName;
MikamiUitOpen 0:e953eb392151 75 int32_t loopCount;
MikamiUitOpen 0:e953eb392151 76
MikamiUitOpen 0:e953eb392151 77 while (true)
MikamiUitOpen 0:e953eb392151 78 {
MikamiUitOpen 0:e953eb392151 79 if (!playOk)
MikamiUitOpen 0:e953eb392151 80 {
MikamiUitOpen 0:e953eb392151 81 if (whileFirst)
MikamiUitOpen 0:e953eb392151 82 {
MikamiUitOpen 0:e953eb392151 83 whileFirst = false;
MikamiUitOpen 0:e953eb392151 84 while (!menu.Touched(0)) // OPEN がタッチされるまで待つ
MikamiUitOpen 7:be29ba9c83b2 85 ModifyFilter(drawerObj, myBars, hn, flat, onOff, on);
MikamiUitOpen 2:2a5c93bf729a 86 SelectFile(menu, selector, myLabel1, fileName);
MikamiUitOpen 0:e953eb392151 87 }
MikamiUitOpen 0:e953eb392151 88 else
MikamiUitOpen 0:e953eb392151 89 {
MikamiUitOpen 0:e953eb392151 90 menu.Activate(1); // PLAY 有効
MikamiUitOpen 0:e953eb392151 91 int touch10;
MikamiUitOpen 0:e953eb392151 92 while (!menu.GetTouchedNumber(touch10))
MikamiUitOpen 7:be29ba9c83b2 93 ModifyFilter(drawerObj, myBars, hn, flat, onOff, on);
MikamiUitOpen 0:e953eb392151 94 if (touch10 == 0)
MikamiUitOpen 2:2a5c93bf729a 95 SelectFile(menu, selector, myLabel1, fileName);
MikamiUitOpen 0:e953eb392151 96 }
MikamiUitOpen 0:e953eb392151 97
MikamiUitOpen 0:e953eb392151 98 loopCount = SD_Open(sdReader, fileName, frameSize);
MikamiUitOpen 0:e953eb392151 99 while (!menu.Touched(1)) // PLAY がタッチされるまで待つ
MikamiUitOpen 7:be29ba9c83b2 100 ModifyFilter(drawerObj, myBars, hn, flat, onOff, on);
MikamiUitOpen 0:e953eb392151 101 }
MikamiUitOpen 0:e953eb392151 102 else
MikamiUitOpen 0:e953eb392151 103 loopCount = SD_Open(sdReader, fileName, frameSize);
MikamiUitOpen 0:e953eb392151 104
MikamiUitOpen 2:2a5c93bf729a 105 selector.Erase(0, 0, BG_LEFT-4, 288);
MikamiUitOpen 11:f4929315bc9f 106 myLabel1.Draw();
MikamiUitOpen 0:e953eb392151 107 myBars.RedrawAll();
MikamiUitOpen 0:e953eb392151 108 drawerObj.DrawResponse();
MikamiUitOpen 0:e953eb392151 109 menu.Inactivate(0); // OPEN 無効
MikamiUitOpen 0:e953eb392151 110 menu.Activate(2); // PAUSE 有効
MikamiUitOpen 0:e953eb392151 111 menu.Activate(4); // STOP 有効
MikamiUitOpen 0:e953eb392151 112
MikamiUitOpen 0:e953eb392151 113 playOk = false;
MikamiUitOpen 0:e953eb392151 114 bool stopOk = false;
MikamiUitOpen 0:e953eb392151 115
MikamiUitOpen 0:e953eb392151 116 // IIR フィルタの内部の遅延器のクリア
MikamiUitOpen 11:f4929315bc9f 117 for (int k=0; k<BANDS; k++) hn[k].Clear();
MikamiUitOpen 7:be29ba9c83b2 118 mySai.PlayOut(); // Play 開始
MikamiUitOpen 0:e953eb392151 119
MikamiUitOpen 0:e953eb392151 120 for (int k=0; k<loopCount; k++)
MikamiUitOpen 0:e953eb392151 121 {
MikamiUitOpen 0:e953eb392151 122 int touch42 = -1;
MikamiUitOpen 0:e953eb392151 123 menu.GetTouchedNumber(touch42);
MikamiUitOpen 0:e953eb392151 124 if (touch42 == 4) break; // STOP
MikamiUitOpen 0:e953eb392151 125 if (touch42 == 2) // PAUSE
MikamiUitOpen 0:e953eb392151 126 {
MikamiUitOpen 0:e953eb392151 127 menu.Inactivate(2); // PAUSE 無効
MikamiUitOpen 0:e953eb392151 128 menu.Activate(3); // RESUME 有効
MikamiUitOpen 9:0d5bd1539291 129 mySai.PauseOut();
MikamiUitOpen 0:e953eb392151 130
MikamiUitOpen 0:e953eb392151 131 // PLAY か RESUME か STOP がタッチされるまで待つ
MikamiUitOpen 0:e953eb392151 132 int touch134 = -1;
MikamiUitOpen 0:e953eb392151 133 while (!menu.GetTouchedNumber(touch134))
MikamiUitOpen 7:be29ba9c83b2 134 ModifyFilter(drawerObj, myBars, hn, flat, onOff, on);
MikamiUitOpen 0:e953eb392151 135 switch (touch134)
MikamiUitOpen 0:e953eb392151 136 {
MikamiUitOpen 9:0d5bd1539291 137 case 1: playOk = true; // 最初から PLAY
MikamiUitOpen 0:e953eb392151 138 break;
MikamiUitOpen 9:0d5bd1539291 139 case 3: mySai.ResumeOut(); // PAUSE したところから PLAY 再開
MikamiUitOpen 0:e953eb392151 140 menu.Activate(2);
MikamiUitOpen 0:e953eb392151 141 menu.Inactivate(3);
MikamiUitOpen 0:e953eb392151 142 menu.TouchedColor(1);
MikamiUitOpen 0:e953eb392151 143 break;
MikamiUitOpen 9:0d5bd1539291 144 case 4: stopOk = true; // STOP
MikamiUitOpen 0:e953eb392151 145 break;
MikamiUitOpen 0:e953eb392151 146 }
MikamiUitOpen 0:e953eb392151 147 }
MikamiUitOpen 0:e953eb392151 148 if (playOk || stopOk) break;
MikamiUitOpen 0:e953eb392151 149
MikamiUitOpen 7:be29ba9c83b2 150 ModifyFilter(drawerObj, myBars, hn, flat, onOff, on);
MikamiUitOpen 0:e953eb392151 151 // １フレーム分の信号処理 (イコライザ) の実行
MikamiUitOpen 11:f4929315bc9f 152 SignalProcessing(sdReader, mySai, hn, BANDS, on);
MikamiUitOpen 0:e953eb392151 153 }
MikamiUitOpen 9:0d5bd1539291 154 mySai.StopOut();
MikamiUitOpen 0:e953eb392151 155 menu.Activate(0); // OPEN 有効
MikamiUitOpen 0:e953eb392151 156 if (!playOk) menu.Activate(1); // PLAY 有効
MikamiUitOpen 0:e953eb392151 157 for (int n=2; n<5; n++) // その他は無効
MikamiUitOpen 0:e953eb392151 158 menu.Inactivate(n);
MikamiUitOpen 0:e953eb392151 159 sdReader.Close(); // SD のファイルのクローズ
MikamiUitOpen 0:e953eb392151 160 }
MikamiUitOpen 0:e953eb392151 161 }