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OpenAudio_ArduinoLibrary/examples/FrequencyShifter_FD_OA/SerialManager_FreqShift_OA.h

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// SerialManager_FreqShift_OA.h
// Demonstrate frequency shifting via frequency domain processing.
//
// Created: Chip Audette (OpenAudio) Aug 2019
// Built for the Tympan library for Teensy 3.6-based hardware
//
// Convert to Open Audio Bob Larkin June 2020
//
// MIT License. Use at your own risk.
//
#ifndef _SerialManagerFreqShift_OA_h
#define _SerialManagerFreqShift_OA_h
#include "AudioStream_F32.h"
#include "OpenAudio_ArduinoLibrary.h"
//now, define the Serial Manager class
class SerialManagerFreqShift_OA {
public:
SerialManagerFreqShift_OA(void) { };
void respondToByte(char c);
void printHelp(void);
int N_CHAN;
float channelGainIncrement_dB = 2.5f;
int freq_shift_increment = 1;
};
void SerialManagerFreqShift_OA::printHelp(void) {
Serial.println();
Serial.println("SerialManager Help: Available Commands:");
Serial.println(" h: Print this help");
Serial.println(" g: Print the gain settings of the device.");
Serial.println(" C: Toggle printing of CPU and Memory usage");
Serial.print( " k: Increase the gain of all channels (ie, knob gain) by ");
Serial.print(channelGainIncrement_dB); Serial.println(" dB");
Serial.print( " K: Decrease the gain of all channels (ie, knob gain) by ");
Serial.print(-channelGainIncrement_dB); Serial.println(" dB");
Serial.print( " f: Raise freq shifting (change by "); Serial.print(freq_shift_increment); Serial.println(" bins)");
Serial.print( " F: Lower freq shifting (change by "); Serial.print(-freq_shift_increment); Serial.println(" bins)"); Serial.println();
}
//functions in the main sketch that I want to call from here
extern void incrementKnobGain(float);
extern void printGainSettings(void);
extern void togglePrintMemoryAndCPU(void);
extern int incrementFreqShift(int);
//switch yard to determine the desired action
void SerialManagerFreqShift_OA::respondToByte(char c) {
//float old_val = 0.0, new_val = 0.0;
switch (c) {
case 'h': case '?':
printHelp(); break;
case 'g': case 'G':
printGainSettings(); break;
case 'k':
incrementKnobGain(channelGainIncrement_dB); break;
case 'K': //which is "shift k"
incrementKnobGain(-channelGainIncrement_dB); break;
case 'C': case 'c':
Serial.println("Received: toggle printing of memory and CPU usage.");
togglePrintMemoryAndCPU(); break;
case 'f':
{ int new_val = incrementFreqShift(freq_shift_increment);
Serial.print("Recieved: new freq shift = "); Serial.println(new_val);}
break;
case 'F':
{ int new_val = incrementFreqShift(-freq_shift_increment);
Serial.print("Recieved: new freq shift = "); Serial.println(new_val);}
break;
}
}
#endif