Symptoms:

  • HDMI input making choppy/ ticking/ helicopter-like sound.
  • Netflix or other smart TV apps are creating these sounds but normal TV isn't.


FIX:

  • Go into TV settings
  • Find the audio output settings
  • Change the output codec to PCM or LPCM or Stereo (it is likely on auto)


  • The names of these settings and the path to get there will likely be slightly different.


Explanation:

When using a smart TV a user can choose to watch Netflix or other external applications through there TV.

Unlike standard digital TV channels, some of these applications produce a digital stream that our Mu-so 2 and Uniti products cannot decode and play-out properly.

In this instance, you can get a choppy/ ticking/ helicopter-like sound as the processor tries to decode the signal wrongly.

Naim product ARC support:

  • PCM
  • DSD

For Naim products:

  • The compressed audio needs to be downmixed into a format the product understands by the TV. Instructions for this under FIX.