snapshot

libraries/audio-tools/examples/tests/conversion/channel-converter-increase-in/channel-converter-increase-in.ino

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+#include "AudioTools.h"
+
+AudioInfo info(44100, 1, 16);
+uint8_t to_channels = 2;                                             // The stream will have 2 channels 
+SineWaveGenerator<int16_t> sine_wave(32000);                         // subclass of SoundGenerator with max amplitude of 32000
+GeneratedSoundStream<int16_t> in_stream(sine_wave);                  // Stream generated from sine wave
+CsvOutput<int16_t> out(Serial, to_channels);                         // Output to Serial
+ChannelFormatConverterStream conv(in_stream);
+StreamCopy copier(out, conv);                                       // copies converted sound to out
+
+void setup(){
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);  
+
+  sine_wave.begin(info, N_B4);
+  conv.begin(info, to_channels);
+  in_stream.begin();
+
+  out.begin();
+}
+
+void loop(){
+    copier.copy();
+}