fix vbat

FW/leo_muziekdoos_esp32/src/audio.cpp

@@ -95,11 +95,10 @@ void initAudio()
   out->SetPinout(I2S_BCLK, I2S_WCLK, I2S_DATA); // bclk, wclk, data
   out->SetGain(AUDIOGAIN);
   pinMode(DAC_SDMODE, OUTPUT);
-  digitalWrite(DAC_SDMODE, HIGH);
+  setAudioState(false);
   mp3 = new AudioGeneratorMP3();
   audioInitOk = true;
   log_i("init Audio Done");
-  playSong("/Billy-Jean.mp3");
 }
 
 void setAudioState(bool state)