snapshot

libraries/audio-tools/examples/examples-basic-api/base-file_raw-serial/base-file_raw-serial.ino

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+/**
+ * @file file_raw-serial.ino
+ * @author Phil Schatzmann
+ * @brief see https://github.com/pschatzmann/arduino-audio-tools/blob/main/examples/file_raw-serial/README.md
+ * 
+ * @author Phil Schatzmann
+ * @copyright GPLv3
+ */
+
+#include <Arduino.h>
+#include <SPI.h>
+#include <SD.h>
+
+File sound_file;
+const char* file_name = "/audio.raw";
+const int sd_ss_pin = 5;
+const int32_t max_buffer_len = 512;
+int32_t buffer[max_buffer_len][2];
+
+// Arduino Setup
+void setup(void) {
+  Serial.begin(115200);
+
+  // Setup SD and open file
+  SD.begin(sd_ss_pin);
+  sound_file = SD.open(file_name, FILE_READ);
+}
+
+// Arduino loop - repeated processing 
+void loop() {
+  size_t len = sound_file.read((uint8_t*)buffer, max_buffer_len * sizeof(int16_t) * 2  ); 
+  for (size_t j=0;j<len;j++){
+    Serial.print(buffer[j][0]);
+    Serial.print(", ");
+    Serial.println(buffer[j][1]);
+  }
+}