snapshot

libraries/audio-tools/examples/tests/codecs/test-codec-opusogg/test-codec-opusogg.ino

@@ -0,0 +1,55 @@
+/**
+ * @file test-codec-opusogg.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/AudioLibs/AudioBoardStream.h"
+#include "AudioTools/AudioCodecs/CodecOpusOgg.h"
+
+AudioInfo info(24000, 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);
+//CsvOutput<int16_t> out(Serial); 
+OpusOggEncoder enc;
+OpusOggDecoder dec;
+EncodedAudioStream decoder(&out, &dec); // encode and write 
+EncodedAudioStream encoder(&decoder, &enc); // encode and write 
+StreamCopy copier(encoder, sound);     
+
+void setup() {
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Warning);
+
+  // Setup output
+  auto cfgo = out.defaultConfig();
+  cfgo.copyFrom(info);
+  out.begin(cfgo);
+
+  // Setup sine wave
+  auto cfgs = sineWave.defaultConfig();
+  cfgs.copyFrom(info);
+  sineWave.begin(cfgs, N_B4);
+
+  // Opus encoder needs to know the audio info
+  encoder.begin(info);
+  decoder.begin(info);
+
+  // configure additinal parameters
+  //enc.config().application = OPUS_APPLICATION_RESTRICTED_LOWDELAY;
+  //enc.config().frame_sizes_ms_x2 = OPUS_FRAMESIZE_20_MS;
+  //enc.config().complexity = 5;
+
+  Serial.println("Test started...");
+}
+
+
+void loop() { 
+  copier.copy();
+}