48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
/**
|
|
* @file communication-codec-test.ino
|
|
* @author Phil Schatzmann
|
|
* @brief generate sine wave -> encoder -> decoder -> audiokit (i2s)
|
|
* @version 0.1
|
|
* @date 2022-04-30
|
|
*
|
|
* @copyright Copyright (c) 2022
|
|
*
|
|
*/
|
|
#include "AudioTools.h"
|
|
#include "AudioTools/AudioCodecs/CodecGSM.h"
|
|
#include "AudioTools/AudioLibs/AudioBoardStream.h"
|
|
|
|
AudioInfo info(8000, 1, 16);
|
|
SineWaveGenerator<int16_t> sineWave( 32000); // subclass of SoundGenerator with max amplitude of 32000
|
|
GeneratedSoundStream<int16_t> sound( sineWave); // Stream generated from sine wave
|
|
AudioBoardStream out(AudioKitEs8388V1);
|
|
EncodedAudioStream decoder(&out, new GSMDecoder()); // encode and write
|
|
EncodedAudioStream encoder(&decoder, new GSMEncoder()); // encode and write
|
|
StreamCopy copier(encoder, sound);
|
|
|
|
void setup() {
|
|
Serial.begin(115200);
|
|
AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Warning);
|
|
|
|
// start I2S
|
|
Serial.println("starting I2S...");
|
|
auto cfgi = out.defaultConfig(TX_MODE);
|
|
cfgi.copyFrom(info);
|
|
out.begin(cfgi);
|
|
|
|
// Setup sine wave
|
|
sineWave.begin(info, N_B4);
|
|
|
|
// start decoder
|
|
decoder.begin(info);
|
|
|
|
// start encoder
|
|
encoder.begin(info);
|
|
|
|
Serial.println("Test started...");
|
|
}
|
|
|
|
|
|
void loop() {
|
|
copier.copy();
|
|
} |