/** * @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/AudioCodecs/CodecOpusOgg.h" int application = OPUS_APPLICATION_AUDIO; // Opus application AudioInfo info(24000, 1, 16); SineWaveGenerator sineWave( 32000); // subclass of SoundGenerator with max amplitude of 32000 GeneratedSoundStream sound( sineWave); // Stream generated from sine wave CsvOutput out(Serial); // Output of sound on desktop 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 sineWave.begin(info, N_B4); // Opus decoder needs to know the audio info decoder.begin(info); // configure and start encoder enc.config().application = application; encoder.begin(info); Serial.println("Test started..."); } void loop() { copier.copy(); }