Thanks Greg, added example

Author: boblark

examples/AudioOutputI2S_F32_Example/AudioOutputI2S_F32_Example.ino

@@ -0,0 +1,65 @@
+// Demonstration of AudioOutputI2S_F32 two channel I2S output object.
+// Greg Raven KF5N November 2025.
+// The left and right channels are output on pin 7, which drives the
+// Teensy Audio Adapter.
+// A headphone can be plugged into the Audio Adapter to hear the tones.
+// Be cautious plugging non-floating devices into the Audio Adapter
+// headphone output.  Grounded devices may cause damage to the Audio Adapter.
+
+#include <Arduino.h>
+#include <Audio.h>
+#include <OpenAudio_ArduinoLibrary.h>
+#include <AudioStream_F32.h>
+
+const float sample_rate_Hz = 48000.0;
+const int audio_block_samples = 128;
+
+AudioControlSGTL5000 sgtl5000_1;
+AudioSettings_F32 audio_settings(sample_rate_Hz, audio_block_samples);
+AudioSynthWaveformSine_F32 tone0(audio_settings), tone1(audio_settings);
+AudioOutputI2S_F32 i2s_out(audio_settings);
+
+AudioConnection_F32 connect0(tone0, 0, i2s_out, 0);
+AudioConnection_F32 connect1(tone1, 0, i2s_out, 1);
+
+void setup() {
+
+  Serial.begin(115200);
+
+  /* check for CrashReport stored from previous run */
+  if (CrashReport) {
+    Serial.print(CrashReport);
+  }
+
+  uint32_t* dmaErrors;
+  dmaErrors = (uint32_t*)(0x400E8000 + 0x4);
+  Serial.printf("DMA errors = %u\n", *dmaErrors);
+
+  sgtl5000_1.enable();
+  sgtl5000_1.setAddress(LOW);
+  AudioMemory_F32(10);
+  sgtl5000_1.volume(0.8);  // Set headphone volume.
+  sgtl5000_1.unmuteHeadphone();
+  Serial.printf("Please listen for tones!\n");
+  tone0.amplitude(0.1);
+  tone0.frequency(261.63);
+  tone0.end();
+  tone1.amplitude(0.1);
+  tone1.frequency(329.63);
+  tone1.end();
+
+  tone0.begin();
+  Serial.println("tone0 is on");
+  delay(5000);
+  tone0.end();
+  Serial.println("tone0 is off");
+  delay(5000);
+  tone1.begin();
+  Serial.println("tone1 is on");
+  delay(5000);
+  tone1.end();
+  Serial.println("Both tones off");
+}
+
+void loop() {
+}