HDMI eARC – eARC stands for Enhanced Audio Return Channel and is an advancement of ARC.One of the benefits of this is that you can control both devices with one remote.HDMI ARC – ARC stands for Audio Return Channel, and this allows for two-way communication where the TV and soundbar can communicate with each other.HDMI (High-Definition Multimedia Interface) – HDMI is an interface that can transmit compressed or uncompressed video and audio signals over a single cable, making it an easy and versatile way to connect devices.Check out how to fix a TV with no picture but sound to solve your problem. And if, after you connect your soundbar, you have sound but no picture, we have a great guide you can follow. You can choose to use your TV’s HDMI, like when connecting Chromecast to a TV. Soundbars usually offer a few different ways to connect to your TV. Most models of soundbars will follow the same general steps to get the job done. All you need is your TV, soundbar, and the appropriate cables. It’s generally an easy and quick procedure, like learning how to connect your TV to WiFi. Using the TV's YouTube app, we play the latency video.STAT: Soundbars offer superior sound quality to almost any built-in TV speaker and are capable of surround sound depending on the model ( source) In the ARC Latency test, we connect the bar via HDMI ARC to the TV. In short, this connection is favorable if you like to watch very high-quality, surround content. It should ensure that video and audio are automatically in sync. The HDMI Forum, a non-profit corporation that develops new versions of HDMI Specification, has also made 'Lip Sync Correction' mandatory on eARC, while it's only optional on ARC. Some soundbars also support eARC or 'enhanced Audio Return Channel', which allows the bar to play object-based surround signals and lossless formats such as Dolby TrueHD or DTS-HD MA, commonly found on Blu-ray discs. The protocol also adds HDMI CEC, which allows you to control HDMI-connected devices with one remote control, meaning you can control your TV and your soundbar with the same remote, for example. This connector allows audio signals to travel to and from the soundbar and eliminates the need for a secondary cable to send audio from your TV back to your soundbar. It's a protocol introduced as part of HDMI version 1.4 in 2009 since then, it's become a common addition on soundbars. HDMI ARC stands for 'Audio Return Channel'. When the results are more (or less) than -55 ms to 75 ms, you may start to experience noticeable latency. For example, if you're watching a movie, you'll more likely notice the actor's voice before their lips start moving. A higher positive latency value is more acceptable than a higher negative latency value, as it's easier to notice sound coming before visuals than the other way around. A negative latency value indicates that sound comes before visuals. Conversely, this same soundbar has -85 ms via its Full HDMI In connection. A positive latency value indicates that the visuals come before sound. For example, the Vizio SB36512-F6 has an ARC latency of 56 ms. However, as hinted above, you can measure latency in both positive and negative values. We measure latency in milliseconds (ms), and we consider a good latency value to fall between -55 ms to 75 ms. Our video is slowed down to 20% to more easily see the sound delay. At the same time, the left circle should alternate between green and white while the red circle on the right side appears. Each ping should ideally be in time with the moment the white ball touches the moving white platform at the bottom of the screen. In this video, there's an audible ping that occurs once every second. We then play the audiovisual latency video seen down below on the TV and record the process. A tripod with a camera phone is set up approximately 5.75ft away from the TV to film the results. We connect the same Samsung Q80T TV with the desired soundbar and wired connection, so the results are comparable. The Latency test refers to the latency over three wired connections: ARC, Optical, and Full HDMI In.
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