Wikipedia: HDMI Ethernet and Audio Return Channel. If not, you can always get the HDMI audio extractor. A lot of the Bluetooth speakers have a AUX input and the LG TVs have a 3.5mm output. Since you can't introduce a video delay on your LG, there will be no way to overcome this.īuy a cheap set of speakers or a soundbar for the TV. Even a 1/4 second delay will be very noticeable and quite distracting. Remember, your Mac isn't an amplifier where the audio is simply boosted, it's being processed. While this is obviously possible, sending this into a computer will inherently introduce a audio delay as it has to be processed by the Mac. You can then use a product like Audio Hijack or Soundflower to route the audio from the Line-In to the speakers. What you need to do is extract the audio channel from the HDMI with an HDMI Audio De-Embedder/Extractor then take the audio via a 3.5mm cable and input it into the Mac. Now, this doesn't mean you can't input sound into your Mac obviously it can because it has a line input port. This would be like asking your TV to send audio or video to your XBox or DVD player. The Mac isn't designed to be an monitor with audio/video capabilities it's not an HDMI endpoint device, it's the source. Secondly, the DisplayPort signal is one way it's video out.
So, they will not support ARC * (HDMI technology) as mentioned in the comments. Your MacBook doesn't have HDMI ports they are Thunderbolt 3 ports meaning the display signal you're getting from it is DisplayPort.
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