House party guide
Theoretically speaking, you could take the positive conductor and just connect it into a standard digital COAX input (because the signal is exactly the same). S/PDIF is a good backup for 5.1 via traditional Dolby Digital or DTS, but S/PDIF doesnt support Dolby TrueHD, DTS:X, Atmos, and the additional speakers those formats allow. Generally, both of these conductors are connected to the primary wires of a small transformer on the target/receiver (one conductor pushes voltage while the other conductor pulls voltage). One conductor of the XLR transmits a positive square wave, and the other conductor transmits a negative square wave. The digital pulses are exactly the same as digital COAX, except they are balanced. Sound quality is not going to be as good as a high quality COAX.ĪES/EBU - uses an XLR cable that should be engineered to have 110 ohm impedance. The downside is that it's not a perfect transfer medium because the LEDs (light emitting diodes) just cannot light up fast enough to create a perfect square wave.
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Like others have said, it electrically disconnects the source/target so that there is no ground loop hum transmitted. Digital Optical Audio Toslink Cable 6FT Jyft S pdif Port 24K Gold Plated Connectors For Home Theater Sound Bar Tv PS4 Xbox Playstation 1PACK Reviews. Toslink - a glass/fiber cable which uses light pulses to transmit the S/PDIF data instead of electrical pulses. There are a couple of other mechanisms that have been created to transfer this same S/PDIF data: Cables that are terminated with RCA generally have a lower impedance (I think it was somewhere around 24 ohms or so). In reality, only COAX cables properly terminated with a 75 ohm BNC connector will match this criteria.
However, COAX cables are mostly recommended because of their shielding (which is critical on a S/PDIF cable) and the ability to try to adhere to the 75 ohm requirement for S/PDIF transmitter/receiver specification. Technically speaking, any wire can be used to connect an S/PDIF source to a S/PDIF target/receiver.
To answer your question, S/PDIF is a specific digital communication protocol to encode and transfer 2-channel PCM music data as well as multi-channel Dolby Digital and DTS data.