STM32F769I Discovery board example project, voice ...

Greetings to the ST community,

I was using the example project provided by ST in "STM32F769I-Discovery\Applications\Audio\Audio_playback_and_record\EWARM" and found out that voice was being output through the headphones.

However I connected speakers to JP2 and JP3 each however no voice was being output. Although in "\Audio\Audio_playback_and_record\Src\waveplayer.c", the output is initalised as:

static uint8_t PlayerInit(uint32_t AudioFreq)
{ 
  /* Initialize the Audio codec and all related peripherals (I2S, I2C, IOExpander, IOs...) */  
  if(BSP_AUDIO_OUT_Init(OUTPUT_DEVICE_BOTH, uwVolume, AudioFreq) != 0)
  {

Can I get some guidance what exactly is missing?

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STM32F769I Discovery board example project, voice output using speaker