There is no sound. What should I do?

• If there is no sound when you expect it or the volume is too low or high, try the following solutions:

  • Adjust the projector's volume settings.
  • Check your computer or video source to make sure the volume is turned up and the audio output is set for the correct source.
  • Check the cable connection between the projector and your video source.
  • If you do not hear sound from an HDMI source, set Sound Output Format to PCM in the Sound menu.
  • If you want to output audio from the projector's speakers, try setting Sound Output Device to Speaker and Sound Output Format to PCM in the Sound menu.
  • If you want to output audio to an external audio device using an HDMI cable, try the following solutions:
    • Make sure the HDMI cable is connected to the projector's HDMI2 (ARC) port
    • Enable HDMI CEC in the Settings menu
    • Enable HDMI2 ARC in the Settings menu
    • Set Sound Output Device to ARC in the Sound menu
    • Set Sound Output Format to PCM in the Sound menu
    • Make sure the HDMI cable is compliant with HDMI ARC

    Note: When outputting audio to an external audio device that does not support HDMI ARC using an HDMI cable, disable HDMI CEC in the Settings menu.

  • If you want to output audio to an external audio device using an optical digital audio cable, set Sound Output Format to PCM in the Sound menu.
  • If you are using a Mac and you do not hear sound from an HDMI source, make sure your Mac supports audio through the HDMI port. If not, you need to connect an audio cable directly to your speaker system.
  • If you do not hear audio from your projector speakers, make sure the audio isn't being output to a Bluetooth speaker.
  • If you turn the projector on immediately after turning it off, the cooling fans may run at high speed momentarily and cause an unexpected noise. This is normal.
  Related references
  Projector Feature Settings - Settings Menu
  Sound Quality Settings - Sound Menu