This article mainly introduces you to the mainstream digital audio digital interface standards and specifications. S / PDIF S / PDIF (Sony / Philips Digital Interface) is a digital audio output interface jointly developed by SONY and PHILIPS. This interface is widely used in devices such as CD players, sound cards and household appliances. It can improve the sound quality of CDs and give us a more pure hearing effect. This interface transmits digital signals, so it will not be disturbed like analog signals and degrade audio quality. It should be noted that the S / PDIF interface is a standard, and both the coaxial digital interface and the optical interface belong to the category of the S / PDIF interface. Aowang SQ210W's two-channel analog output and optical fiber + coaxial output
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