|
- #include <Audio.h>
- #include <Wire.h>
- #include <SPI.h>
- #include <SD.h>
- #include <SerialFlash.h>
-
- // GUItool: begin automatically generated code
- AudioInputI2S i2s1; //xy=109,157
- AudioEffectMidSide ms_enc1; //xy=243,157
- AudioFilterBiquad biquad1; //xy=265,246
- AudioMixer4 mixer1; //xy=355,73
- AudioMixer4 mixer2; //xy=400,268
- AudioEffectMidSide ms_dec1; //xy=487,154
- AudioOutputI2S i2s2; //xy=637,154
- AudioConnection patchCord1(i2s1, 0, ms_enc1, 0);
- AudioConnection patchCord2(i2s1, 1, ms_enc1, 1);
- AudioConnection patchCord3(ms_enc1, 0, mixer1, 0);
- AudioConnection patchCord4(ms_enc1, 1, biquad1, 0);
- AudioConnection patchCord5(biquad1, 0, mixer2, 0);
- AudioConnection patchCord6(mixer1, 0, ms_dec1, 0);
- AudioConnection patchCord7(mixer2, 0, ms_dec1, 1);
- AudioConnection patchCord8(ms_dec1, 0, i2s2, 0);
- AudioConnection patchCord9(ms_dec1, 1, i2s2, 1);
- AudioControlSGTL5000 sgtl5000_1; //xy=119,90
- // GUItool: end automatically generated code
-
-
- const int myInput = AUDIO_INPUT_LINEIN;
- // const int myInput = AUDIO_INPUT_MIC;
-
- void setup() {
- // The stereo line input is encoded into mid and side components.
- // The mid component will be attenuated (mixer1), which leaves some
- // headroom for the side component to be increased in volume (mixer2).
- // Furthermore, the side component is high-passed (biquad1).
- AudioMemory(6);
- sgtl5000_1.enable();
- sgtl5000_1.inputSelect(myInput);
- sgtl5000_1.volume(1.0); // output volume
-
- ms_enc1.encode();
- ms_dec1.decode();
-
- // We attenuate the MID channel a little to prevent saturation when increasing the SIDE channel gain
- mixer1.gain(0, 0.9);
- // We increase the gain of the SIDE channel to increase stereo width
- mixer2.gain(0, 2.0);
- // But, we remove low frequencies from the side channel. Better for sub and doesn't get your ears twinkling with out-of-phase basses using a headphone
- biquad1.setHighpass(0, 200, 0.7);
-
- Serial.begin(9600);
- while (!Serial) ;
- delay(3000);
- Serial.println("Initialized mid-side example");
- }
-
- void loop() {
- }
|