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libraries/audio-tools/examples/tests/concurrency/audio-test/audio-test.ino

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+
+#include "AudioTools.h"
+#include "AudioTools/AudioLibs/AudioBoardStream.h"
+#include "AudioTools/Concurrency/RTOS.h"
+
+AudioInfo info(44100, 2, 16);
+// source and sink
+SineWaveGenerator<int16_t> sineWave(32000);               
+GeneratedSoundStream<int16_t> sound(sineWave); 
+AudioBoardStream out(AudioKitEs8388V1);
+// queue
+// SynchronizedNBuffer buffer(1024, 10);
+BufferRTOS<uint8_t> buffer(1024 * 10);
+QueueStream<uint8_t> queue(buffer);
+// copy
+StreamCopy copierSource(queue, sound);                            
+StreamCopy copierSink(out, queue);                            
+// tasks
+Task writeTask("write", 3000, 10, 0);
+Task readTask("read", 3000, 10, 1);
+
+void setup() {
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Warning);
+  // start Queue
+  queue.begin();
+
+  // start I2S
+  Serial.println("starting I2S...");
+  auto config = out.defaultConfig(TX_MODE);
+  config.copyFrom(info); 
+  out.begin(config);
+
+  // Setup sine wave
+  sineWave.begin(info, N_B4);
+  Serial.println("started...");
+
+  writeTask.begin([]() {
+    copierSource.copy();
+  });
+
+  readTask.begin([]() {
+    copierSink.copy();
+  });
+
+  Serial.println("started...");
+
+}
+
+void loop() { delay(1000); }