Different Audio/Video Means Of Transmission Today
(Re)discover previous article: Synchronisation / Automation Solutions
Do you remember this old (but not so distant!) good time when you were a teenager or a child? Do you recall these old video game consoles that were using Peritel and RCA cables to get connected to your TV? There, there, dry out your tears! I would like to talk to you about their little brothers that fiercely follow their predecessors’ steps in the Audio/Video world.
Two cable types, Toslink and HDMI, are featured in this article. They guarantee good sound and image quality.
Toslink is an optical fiber system audio cable. It provides hi-fi systems and amplifiers with clear and natural sound. You can find it in the latest video game consoles.
HDMI cable is very well known and outperforms Toslink in many ways. It connects the Audio/Video source (PC, Blu-Ray Player) to the TV or the video projector. The transmitted AV data is of high quality. A standard version of the cable is compatible with High Definition (720p et 1080p) devices. The latest version of the HDMI cable, 2.0, supports 4K resolution (do not confuse with Ultra High Definition). It’s 4 times the quality of High Definiton. Today, 4K resolution is not widely used because only a limited number of films and TV channels apply this technology.
Let’s go back to very popular High Definition and its limitations. 10m long cable provides high quality data transmission but it decreases beyond this distance. However, there are some wireless solutions that maintain high quality up to 20m range. The main inconvenience is price. A wireless HDMI device costs around 200€.
Very few products in the marketplace use this hassle-free solution. One wire less means several minutes less spent undoing knots. A video projector that incurs a wireless HDMI cable is AiO (All in One) from AV Concept Products (in the standard version!).