There is noise after playing music

[gianglongtbe]

I used the example but got noise after finishing can you tell me how to fix it?

I use esp8266 esp-12f.

`#include <Arduino.h>

#include "AudioFileSourcePROGMEM.h"
#include "AudioGeneratorWAV.h"
#include "AudioOutputI2SNoDAC.h"

// VIOLA sample taken from https://ccrma.stanford.edu/~jos/pasp/Sound_Examples.html
#include "viola.h"

AudioGeneratorWAV *wav;
AudioFileSourcePROGMEM *file;
AudioOutputI2SNoDAC *out;

void setup()
{
Serial.begin(115200);
delay(1000);
Serial.printf("WAV start\n");

audioLogger = &Serial;
file = new AudioFileSourcePROGMEM( viola, sizeof(viola) );
out = new AudioOutputI2SNoDAC();
wav = new AudioGeneratorWAV();
wav->begin(file, out);
}

void loop()
{
if (wav->isRunning()) {
if (!wav->loop()) wav->stop();
} else {
Serial.printf("WAV done\n");
delay(1000);
}
}`

music.mp4

[gianglongtbe]

Why does noise appear after every music playback ends

[gianglongtbe]

I have looked at the entries but there is no improvement. Could it be the software causing the noise?

[softhack007]

Hmmm 🤔 reminds me of this discussion : #271

Maybe a call to output->flush() should be added in the audioGenerator class, just before output->stop(). As a quick test, you could try this in your scetch:

  if (!wav->loop()) {
     out->flush();
     wav->stop();
  }
} else {