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60 lines
1.7 KiB
60 lines
1.7 KiB
#include <Audio.h>
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// the next line can be skipped if more perfomance is needed
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#define NOISEGATE_EXTENDEDINFO
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#include <OpenAudio_ArduinoLibrary.h>
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#include <Arduino.h>
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AudioInputI2S_F32 i2sAudioIn1;
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AudioOutputI2S_F32 i2sAudioOut1;
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AudioEffectNoiseGate_F32 noiseGate;
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AudioConnection_F32 patchCordL1(i2sAudioIn1, 0, noiseGate, 0);
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AudioConnection_F32 patchCordL2(noiseGate, 0, i2sAudioOut1, 0);
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AudioConnection_F32 patchCordR1(i2sAudioIn1, 1, i2sAudioOut1, 1);
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#define LED_RED 0
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#define LED_YELLOW 1
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#define LED_GREEN 2
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//The setup function is called once when the system starts up
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void setup(void)
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{
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//Start the USB serial link (to enable debugging)
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Serial.begin(115200);
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delay(500);
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Serial.println("Setup starting...");
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//Allocate dynamically shuffled memory for the audio subsystem
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AudioMemory(20);
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AudioMemory_F32(20);
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//Put your own setup code here
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pinMode(LED_RED, OUTPUT);
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pinMode(LED_GREEN, OUTPUT);
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pinMode(LED_YELLOW, OUTPUT);
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// setup the noise gate. it is probaly a good idea to filter the incoming signal @20 Hz, maybe this colud be added in the future
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noiseGate.setOpeningTime(0.02f);
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noiseGate.setClosingTime(0.05f);
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noiseGate.setHoldTime(0.1);
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noiseGate.setThreshold(-40);
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//End of setup
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Serial.println("Setup complete.");
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};
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//After setup(), the loop function loops forever.
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//Note that the audio modules are called in the background.
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//They do not need to be serviced by the loop() function.
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float lastVal = 0;
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void loop(void)
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{
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bool thresTrigger = noiseGate.infoIsOpen();
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digitalWrite(LED_RED, !thresTrigger);
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digitalWrite(LED_GREEN, thresTrigger);
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digitalWrite(LED_YELLOW, noiseGate.infoIsOpeningOrClosing());
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};
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