Audio passthrough is a feature that allows audio signals to pass through a device without any modification or processing. It is a way for you to connect multiple devices to your TV and pass high-quality audio signals to a receiver, which helps keep your setup clean, and you can use video features your TV supports like HDMI 2.1 and variable refresh rate (VRR) that your receiver might not. The process of audio-pass-through is simply to make the audio signal route through the device without altering it in any way. Audio passthrough is a technology that allows audio signals to be transmitted directly from one device to another without any modification or processing.

Audio passthrough is important if you have a surround sound setup or a dedicated soundbar. With audio passthrough, you can connect your sources like a gaming console and Blu-ray directly to the TV and pass high-quality audio signals to a receiver, which helps keep your setup clean, and you can use video features your TV supports like HDMI 2.1 and variable refresh rate (VRR) that your receiver might not.

One of the advantages of audio passthrough is that it maintains the quality of the original audio signal, which is particularly important for high-quality audio formats such as lossless audio, where any processing or modification can result in a loss of fidelity. Audio passthrough provides flexibility and compatibility and enables downstream processing and enhancement, making it an important feature in many audio setups.

HDMI pass-through is a type of audio passthrough that passes video and audio signals from a high-definition source such as a Blu-ray player or a HD Set Top Box to a Home Theater System (HTS) via an HDMI cable. The Home Theater System plays the audio from the HD source through its own speakers and sends the unaltered video signal to a TV via a second HDMI cable.

In summary, audio passthrough is a feature that allows audio signals to pass through a device without any modification or processing. It is important if you have a surround sound setup or a dedicated soundbar. One of the advantages of audio passthrough is that it maintains the quality of the original audio signal. HDMI pass-through is a type of audio passthrough that passes video and audio signals from a high-definition source to a Home Theater System via an HDMI cable.