Synthesizer::Synthesizer()
{
preset = new synth_preset_t;
config = new synth_configuration_t;
osc[0] = &osc1;
osc[1] = &osc2;
osc[2] = &osc3;
currentFreq = 300;
freqOffset = 0;
// make connections
osc12sum = new AudioConnection(osc1, 0, oscSum, 0);
osc22sum = new AudioConnection(osc2, 0, oscSum, 1);
osc32sum = new AudioConnection(osc3, 0, oscSum, 2);
oscSum2flt1 = new AudioConnection(oscSum, 0, flt1, 0);
oscSum2serParMixer = new AudioConnection(oscSum, 0, serParMixer, 0);
flt12serParMixer = new AudioConnection(flt1, 1, serParMixer, 1);
flt12fltSum = new AudioConnection(flt1, 1, fltSum, 0);
serParMixer2flt2 = new AudioConnection(serParMixer, 0, flt2, 0);
flt22fltSum = new AudioConnection(flt2, 0, fltSum, 1);
fltSum2fltDryWet = new AudioConnection(fltSum, 0, fltDryWet, 0);
oscSum2fltDryWet = new AudioConnection(oscSum, 0, fltDryWet, 1);
fltDryWet2outL = new AudioConnection(fltDryWet, 0, out, 0);
fltDryWet2outR = new AudioConnection(fltDryWet, 0, out, 1);
setFilterSerParCrossfade(1.f);
AudioMemory(20);
}
void setup()
{
AudioMemory(12);
synth.setFrequency(1000);
synth.setModFrequency(20);
synth.setActiveLayers(10);
}
int main(void) {
// initialize USB serial connection
Serial.begin(115200);
// initialize UART serial connection
// RX1 - pin 0
// TX1 - pin 1
Serial1.begin(9600);
// allocate audio memory
AudioMemory(18);
// pin 2 is connected to a button to ground, for a simple demo
pinMode(2, INPUT_PULLUP);
while (1) {
// check for input from USB serial
if (Serial.available() > 0) {
String input = Serial.readStringUntil('\n');
// don't send packet if input is blank
while (input != "" && input != "\n") {
// allocate packet buffer and set the bytes within
char packet[PACKET_LEN];
memset(packet, 0, sizeof(packet));
strncpy(packet, input.c_str(), PACKET_LEN);
if (input.length() > PACKET_LEN) {
input = input.substring(PACKET_LEN, input.length());
}
else {
input = "";
}
send_packet_serial(packet);
// wait extra time between each packet to let the receiver
// settle
delay(3*DURATION);
}
}
// check for input from RS232
if (Serial1.available() > 0) {
String input = Serial1.readStringUntil(' ');
if (input != "" && input != " ") {
Serial.print(input);
}
}
// check for button press on pin 2
if (!digitalRead(2)) {
// pin 2 connected to ground, send demo packet
send_demo();
}
}
}
void BitshiftAudio::setup()
{
AudioMemory(12);
audioAdaptor.enable();
audioAdaptor.inputSelect(AUDIO_INPUT_LINEIN);
audioAdaptor.micGain(0);
audioAdaptor.muteHeadphone();
// disable adc hp as it causes noise to kick in when no input audio is detected
audioAdaptor.adcHighPassFilterDisable();
// good combination for minimum ADC noise when used with non-active guitar as input
// large line in sensitivity, bring down dac and volume so overall gain is close to unity
audioAdaptor.lineInLevel(12);
audioAdaptor.lineOutLevel(31);
audioAdaptor.dacVolume(0.9);
}
void setup()
{
AudioMemory(12);
}
void setup()
{
AudioMemory(12);
sine.frequency(1000);
}
