不韋 呂 / F746_AcousticEffector_MIC

Audio singal input and output example for DISCO-F746. Input: MEMS mic, Output: CN10 OUT, Acoustic effect: echo and frequency shift. DISCO-F746 によるオーディオ信号入出力．入力：MEMS マイク，出力：CN10 OUT，音響効果：エコー，周波数変換．

Dependencies:   F746_GUI F746_SAI_IO

main.cpp@2:a02507a43694, 2016-05-07 (annotated)

Committer:
MikamiUitOpen
Date:
Sat May 07 07:42:03 2016 +0000
Revision:
2:a02507a43694
Parent:
1:319b7346f8ef
Child:
3:dc890c293f3f
3. From this revision, using class library "F746_SAI_IO".

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:f064b50f238e 1 //--------------------------------------------------------------
MikamiUitOpen 0:f064b50f238e 2 // MEMS マイクの入力に対して音響効果を与える
MikamiUitOpen 0:f064b50f238e 3 // 音響効果：エコー生成，周波数シフト
MikamiUitOpen 0:f064b50f238e 4 //
MikamiUitOpen 2:a02507a43694 5 // 2016/05/07, Copyright (c) 2016 MIKAMI, Naoki
MikamiUitOpen 0:f064b50f238e 6 //--------------------------------------------------------------
MikamiUitOpen 0:f064b50f238e 7
MikamiUitOpen 0:f064b50f238e 8 #include "InitializeGUI.hpp"
MikamiUitOpen 2:a02507a43694 9 #include "SAI_InOut.hpp"
MikamiUitOpen 0:f064b50f238e 10 #include "Echo.hpp"
MikamiUitOpen 0:f064b50f238e 11 #include "WeaverModulator.hpp"
MikamiUitOpen 0:f064b50f238e 12
MikamiUitOpen 0:f064b50f238e 13 using namespace Mikami;
MikamiUitOpen 0:f064b50f238e 14
MikamiUitOpen 0:f064b50f238e 15 int main()
MikamiUitOpen 0:f064b50f238e 16 {
MikamiUitOpen 0:f064b50f238e 17 const int FS = I2S_AUDIOFREQ_16K; // 標本化周波数: 16 kHz
MikamiUitOpen 2:a02507a43694 18 SaiIO mySai(SaiIO::BOTH, 256, FS, INPUT_DEVICE_DIGITAL_MICROPHONE_2);
MikamiUitOpen 0:f064b50f238e 19 mySai.Pause();
MikamiUitOpen 0:f064b50f238e 20
MikamiUitOpen 0:f064b50f238e 21 ButtonGroup *onOff; // "ON", "OFF"
MikamiUitOpen 0:f064b50f238e 22 ButtonGroup *menu; // "THROUGH", "ECHO", "F_SHIFTER"
MikamiUitOpen 0:f064b50f238e 23 SeekBar *barEcho, *barFqCh;
MikamiUitOpen 0:f064b50f238e 24 NumericLabel<int> *frqLabel;
MikamiUitOpen 0:f064b50f238e 25 WaveformDisplay *displayIn, *displayOut;
MikamiUitOpen 0:f064b50f238e 26
MikamiUitOpen 0:f064b50f238e 27 InitializeGUI(onOff, menu, barEcho, barFqCh, frqLabel, displayIn, displayOut);
MikamiUitOpen 0:f064b50f238e 28
MikamiUitOpen 0:f064b50f238e 29 ProcessingBase through; // 0: 信号処理なしで出力
MikamiUitOpen 0:f064b50f238e 30 EchoSystem echo; // 1: エコー生成
MikamiUitOpen 0:f064b50f238e 31 FrqShifter shifter(FS); // 2: 周波数シフト
MikamiUitOpen 0:f064b50f238e 32 ProcessingBase *func[3] = { &through, &echo, &shifter };
MikamiUitOpen 0:f064b50f238e 33 shifter.SetFrequensy(100); // 周波数シフタの初期値：100 Hz
MikamiUitOpen 0:f064b50f238e 34
MikamiUitOpen 0:f064b50f238e 35 int runStop = 1;
MikamiUitOpen 0:f064b50f238e 36 int menuNum = 0;
MikamiUitOpen 0:f064b50f238e 37
MikamiUitOpen 0:f064b50f238e 38 // 入出力の波形表示で使用
MikamiUitOpen 0:f064b50f238e 39 int16_t *snIn, *snOut;
MikamiUitOpen 0:f064b50f238e 40 snIn = new int16_t[mySai.GetLength()];
MikamiUitOpen 0:f064b50f238e 41 snOut = new int16_t[mySai.GetLength()];
MikamiUitOpen 0:f064b50f238e 42
MikamiUitOpen 0:f064b50f238e 43 while (true)
MikamiUitOpen 0:f064b50f238e 44 {
MikamiUitOpen 0:f064b50f238e 45 // On/OFF の設定
MikamiUitOpen 0:f064b50f238e 46 int num;
MikamiUitOpen 0:f064b50f238e 47 if (onOff->GetTouchedNumber(num))
MikamiUitOpen 0:f064b50f238e 48 if (runStop != num)
MikamiUitOpen 0:f064b50f238e 49 {
MikamiUitOpen 0:f064b50f238e 50 if (num == 0) mySai.Resume();
MikamiUitOpen 0:f064b50f238e 51 else mySai.Pause();
MikamiUitOpen 0:f064b50f238e 52 runStop = num;
MikamiUitOpen 0:f064b50f238e 53 }
MikamiUitOpen 0:f064b50f238e 54
MikamiUitOpen 0:f064b50f238e 55 // エコーの長さを設定
MikamiUitOpen 0:f064b50f238e 56 if (menuNum == 1)
MikamiUitOpen 0:f064b50f238e 57 if (barEcho->Slide())
MikamiUitOpen 0:f064b50f238e 58 echo.SetDelay(6000 - barEcho->GetIntValue());
MikamiUitOpen 0:f064b50f238e 59
MikamiUitOpen 0:f064b50f238e 60 // 周波数シフトの値の設定
MikamiUitOpen 0:f064b50f238e 61 if (menuNum == 2)
MikamiUitOpen 0:f064b50f238e 62 if (barFqCh->Slide())
MikamiUitOpen 0:f064b50f238e 63 {
MikamiUitOpen 0:f064b50f238e 64 frqLabel->Draw("+%d Hz", barFqCh->GetIntValue());
MikamiUitOpen 0:f064b50f238e 65 shifter.SetFrequensy(barFqCh->GetIntValue());
MikamiUitOpen 0:f064b50f238e 66 }
MikamiUitOpen 0:f064b50f238e 67
MikamiUitOpen 0:f064b50f238e 68 // 信号処理の種類の切り替え
MikamiUitOpen 0:f064b50f238e 69 if (menu->GetTouchedNumber(menuNum))
MikamiUitOpen 0:f064b50f238e 70 switch (menuNum)
MikamiUitOpen 0:f064b50f238e 71 {
MikamiUitOpen 0:f064b50f238e 72 case 0: barEcho->Inactivate(); // Through
MikamiUitOpen 0:f064b50f238e 73 barFqCh->Inactivate();
MikamiUitOpen 0:f064b50f238e 74 frqLabel->Draw(GuiBase::ENUM_INACTIVE_TEXT);
MikamiUitOpen 0:f064b50f238e 75 break;
MikamiUitOpen 0:f064b50f238e 76 case 1: barEcho->Activate(); // Echo
MikamiUitOpen 0:f064b50f238e 77 barFqCh->Inactivate();
MikamiUitOpen 0:f064b50f238e 78 frqLabel->Draw(GuiBase::ENUM_INACTIVE_TEXT);
MikamiUitOpen 0:f064b50f238e 79 break;
MikamiUitOpen 0:f064b50f238e 80 case 2: barEcho->Inactivate(); // Frequency shifter
MikamiUitOpen 0:f064b50f238e 81 barFqCh->Activate();
MikamiUitOpen 0:f064b50f238e 82 frqLabel->Draw(GuiBase::ENUM_TEXT);
MikamiUitOpen 0:f064b50f238e 83 break;
MikamiUitOpen 0:f064b50f238e 84 }
MikamiUitOpen 0:f064b50f238e 85
MikamiUitOpen 0:f064b50f238e 86 //---------------------------------------------
MikamiUitOpen 0:f064b50f238e 87 // １フレーム分の信号処理を行い，その結果を出力する
MikamiUitOpen 0:f064b50f238e 88 if ( mySai.IsCaptured() && mySai.IsXferred() )
MikamiUitOpen 0:f064b50f238e 89 {
MikamiUitOpen 0:f064b50f238e 90 for (int n=0; n<mySai.GetLength(); n++)
MikamiUitOpen 0:f064b50f238e 91 {
MikamiUitOpen 0:f064b50f238e 92 int16_t xL, xR;
MikamiUitOpen 0:f064b50f238e 93 mySai.Input(xL, xR);
MikamiUitOpen 0:f064b50f238e 94 int16_t xn = xL + xR;
MikamiUitOpen 0:f064b50f238e 95 snIn[n] = xn;
MikamiUitOpen 0:f064b50f238e 96
MikamiUitOpen 0:f064b50f238e 97 //-------------------------------------------------------
MikamiUitOpen 0:f064b50f238e 98 // 信号処理実行
MikamiUitOpen 0:f064b50f238e 99 int16_t yn = (int16_t)func[menuNum]->Execute((float)xn);
MikamiUitOpen 0:f064b50f238e 100 //-------------------------------------------------------
MikamiUitOpen 0:f064b50f238e 101
MikamiUitOpen 0:f064b50f238e 102 mySai.Output(yn, yn); // 左右チャンネルに同じ信号を出力
MikamiUitOpen 0:f064b50f238e 103 snOut[n] = yn;
MikamiUitOpen 0:f064b50f238e 104 }
MikamiUitOpen 0:f064b50f238e 105 mySai.ResetCaptured();
MikamiUitOpen 0:f064b50f238e 106 mySai.ResetXferred();
MikamiUitOpen 0:f064b50f238e 107
MikamiUitOpen 0:f064b50f238e 108 displayIn->Execute(snIn); // 入力波形の表示
MikamiUitOpen 0:f064b50f238e 109 displayOut->Execute(snOut); // 出力波形の表示
MikamiUitOpen 0:f064b50f238e 110 }
MikamiUitOpen 0:f064b50f238e 111 // １フレーム分の信号処理はここまで
MikamiUitOpen 0:f064b50f238e 112 //---------------------------------------------
MikamiUitOpen 0:f064b50f238e 113 }
MikamiUitOpen 0:f064b50f238e 114 }