Analog and HDMI sound synchronization

Help and Support Raspberry Pi
1

Hi,

I’ve a RPI B with OSMC with 2 sound outputs:

  • my tv plugged on HDMI
  • 2.1 speakers plugged on Analog jack

The sound between them aren’t synchronised and make a noisy echo.

How can I do to synchronize them ?

Thanks

2

The built-in DAC is really just a PWM with filtering. Audio quality is not that great. Consider connecting the speakers to the TV instead.

3

There are some tvs that have variable delay filters for hdmi.

4

That’s set to improve with Jonathan’s audio improvements. I suspect once the initial quirks are ironed out most on board DACs will actually be given a good run for their money.

Sam

5

Well… I am a hardware guy… some things are best done in hardware. My fear is that this will steal too much cycles, causing more problems.