PlayMP3ToSPDIF logs the message "MP3 source file not open" to the Serial monitor.

[matthewdrummond]

Playback ends immediately, as in Serial.printf("MP3 done\n"); executes right away. Here is the code that I have

include

if defined(ARDUINO_ARCH_RP2040)

void setup() {} void loop() {}

else

ifdef ESP32

include

include "SPIFFS.h"

else

include

endif

include "AudioFileSourceSPIFFS.h"

include "AudioFileSourceID3.h"

include "AudioGeneratorMP3.h"

include "AudioOutputI2S.h"

// To run, set your ESP8266 build to 160MHz, and include a SPIFFS of 512KB or greater. // Use the "Tools->ESP8266/ESP32 Sketch Data Upload" menu to write the MP3 to SPIFFS // Then upload the sketch normally.

// pno_cs from https://ccrma.stanford.edu/~jos/pasp/Sound_Examples.html

AudioGeneratorMP3 mp3; AudioFileSourceSPIFFS file; AudioOutputI2S out; AudioFileSourceID3 id3;

// Called when a metadata event occurs (i.e. an ID3 tag, an ICY block, etc. void MDCallback(void cbData, const char type, bool isUnicode, const char *string) { (void)cbData; Serial.printf("ID3 callback for: %s = '", type);

if (isUnicode) { string += 2; }

while (string) { char a = (string++); if (isUnicode) { string++; } Serial.printf("%c", a); } Serial.printf("'\n"); Serial.flush(); }

void setup() { WiFi.mode(WIFI_OFF); Serial.begin(115200); delay(1000); SPIFFS.begin(); Serial.printf("Sample MP3 playback begins...\n");

audioLogger = &Serial; file = new AudioFileSourceSPIFFS("/pno-cs.mp3"); id3 = new AudioFileSourceID3(file); id3->RegisterMetadataCB(MDCallback, (void*)"ID3TAG"); out = new AudioOutputI2S(); mp3 = new AudioGeneratorMP3(); mp3->begin(id3, out); }

void loop() { if (mp3->isRunning()) { if (!mp3->loop()) mp3->stop(); } else { //Serial.printf("MP3 done\n"); delay(1000); } }

endif

And here is the Serial Monitors output:

Sample MP3 playback begins... MP3 source file not open

Anyone have any experience with this example? I am stuck here. Where is the Serial.println() that logs "MP3 source file not open" coming from? Thank you for any help

[ChulseungYoo]

I am having same problem. did you resolved the issue?

I am using nodemcu board with esp-12f from ai thinker