snapshot

libraries/audio-tools/examples/tests/conversion/test-volumestream/test-volumestream.ino

@@ -0,0 +1,37 @@
+/**
+ * @file test-volumestream.ino
+ * @author Phil Schatzmann
+ * @brief test for VolumeStream class
+ * @copyright GPLv3
+ **/
+ 
+#include "AudioTools.h"
+
+AudioInfo audio_info(44100, 2, 16);
+SineWaveGenerator<int16_t> sineWave(32000);                // subclass of SoundGenerator with max amplitude of 32000
+GeneratedSoundStream<int16_t> sound(sineWave);    
+CsvOutput<int16_t> out(Serial); 
+VolumeStream vol(out);     
+StreamCopy copier(vol, sound);     
+float f_volume = 0.1;
+
+// Arduino Setup
+void setup(void) {  
+  // Open Serial 
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Warning);
+
+  // Define CSV Output
+  out.begin(audio_info);
+  vol.begin(audio_info);
+  vol.setVolume(f_volume);
+
+  // Setup sine wave
+  sineWave.begin(audio_info, N_B4);
+  Serial.println("started...");
+}
+
+// Arduino loop - copy sound to out 
+void loop() {
+  copier.copy();
+}