48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
/**
|
|
* @file channel-converter-diff.ino
|
|
* @brief Test calculating parwise difference of channels
|
|
* @author Urs Utzinger
|
|
* @copyright GPLv3
|
|
**/
|
|
|
|
#include "AudioTools.h"
|
|
|
|
AudioInfo info1(44100, 1, 16);
|
|
AudioInfo info2(44100, 2, 16);
|
|
SineWaveGenerator<int16_t> sineWave1(16000); // subclass of SoundGenerator with max amplitude of 32000
|
|
SineWaveGenerator<int16_t> sineWave2(16000); // subclass of SoundGenerator with max amplitude of 32000
|
|
GeneratedSoundStream<int16_t> sound1(sineWave1); // stream generated from sine wave1
|
|
GeneratedSoundStream<int16_t> sound2(sineWave2); // stream generated from sine wave2
|
|
InputMerge<int16_t> imerge; // merge two inputs to stereo
|
|
ChannelDiff differ; // channel averager
|
|
ConverterStream<int16_t> diffed_stream(imerge, differ); // pipe the sound to the averager
|
|
CsvOutput<int16_t> serial_out(Serial); // serial output
|
|
StreamCopy copier(serial_out, diffed_stream); // stream the binner output to serial port
|
|
|
|
// Arduino Setup
|
|
void setup(void) {
|
|
|
|
// Open Serial
|
|
Serial.begin(115200);
|
|
while(!Serial); // wait for Serial to be ready
|
|
|
|
AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Warning);
|
|
|
|
// Setup sine waves
|
|
sineWave1.begin(info1, N_B4);
|
|
sineWave2.begin(info1, N_B5);
|
|
|
|
// Merge input to stereo
|
|
imerge.add(sound1, 1);
|
|
imerge.add(sound2, 1);
|
|
imerge.begin(info2);
|
|
|
|
// Define CSV Output
|
|
serial_out.begin(info1);
|
|
|
|
}
|
|
|
|
// Arduino loop - copy sound to out with conversion
|
|
void loop() {
|
|
copier.copy();
|
|
} |