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libraries/audio-tools/examples/examples-audiokit/streams-tf-audiokit/streams-tf-audiokit.ino

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+/**
+ * @file streams-tf-i2s.ino
+ * @author Phil Schatzmann
+ * @brief We use Tenorflow lite to generate some audio data and output it via I2S to the AudioKit
+ * @version 0.1
+ * @date 2022-04-07
+ * 
+ * @copyright Copyright (c) 2022
+ * 
+ */
+#include "AudioTools.h"
+#include "AudioTools/AudioLibs/TfLiteAudioStream.h"
+#include "AudioTools/AudioLibs/AudioBoardStream.h"
+#include "model.h"
+
+TfLiteSineReader tf_reader(20000,0.3);  // Audio generation logic 
+TfLiteAudioStream tf_stream;            // Audio source -> no classification so N is 0
+AudioBoardStream i2s(AudioKitEs8388V1);                     // Audio destination
+StreamCopy copier(i2s, tf_stream);      // copy tf_stream to i2s
+int channels = 1;
+int samples_per_second = 16000;
+
+
+void setup() {
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Warning);
+
+  // Setup tensorflow input
+  auto tcfg = tf_stream.defaultConfig();
+  tcfg.channels = channels;
+  tcfg.sample_rate = samples_per_second;
+  tcfg.kTensorArenaSize = 2 * 1024;
+  tcfg.model = g_model;
+  tcfg.reader = &tf_reader;
+  tf_stream.begin(tcfg);
+
+  // setup Audioi2s output
+  auto cfg = i2s.defaultConfig(TX_MODE);
+  cfg.channels = channels;
+  cfg.sample_rate = samples_per_second;
+  i2s.begin(cfg);
+
+}
+
+void loop() { copier.copy(); }