You are watching: What audio port connects to an external home theater audio system, providing digital audio output?
There room many possible sources of sound ~ above a computer, consisting of music CDs, digital videos and also games. Regardless of the source, all sounds begin as digital audio – numbers in a file. Between the source document and the speaker, the audio need to be convert to one analog format. Microphones record an analog audio signal, i beg your pardon is convert to digital. The conversions happen inside or outside the computer, depending on the harbor type.
The oldest and most typical port is the analog, 1/8-inch ring jack offered for headphones and also speakers. The signal is not strong enough to drive many speakers, so computer system speakers usually encompass a little built-in amplifier through its own power supply. The harbor is often identified by a eco-friendly ring roughly the jack; a jack with a pink ring is because that connecting one analog microphone.
The USB connectors uncovered on every present-day computer systems can be supplied as audio ports. Some exterior speakers and headphones, an especially headsets consists of headphones and also microphone, connect to a USB jack. The audio signal brought by USB is digital, therefore it might be a higher quality resource of audio, however it will must be converted to or from analog by the exterior device, i m sorry will influence sound quality.
The best possible audio quality from a computer is obtained by using a SPDIF (Sony/Philips Digital Interconnect Format) port. This is a digital audio output, and also it can be either an RCA jack or one optical jack. The previous can be provided with any kind of RCA cord, when the latter requires a fiber optic cable. These ports are not widely obtainable but deserve to be added using an exterior USB device. The SPDIF harbor is used to send audio signals to an exterior sound or house theater system.
Some computers have analog ports to plug in an ext speakers because that surround sound. These may encompass rear (black), side (silver) and center or subwoofer (orange). A blue 1/8-inch receptacle usually denotes a heat level input, which deserve to be supplied to record sound indigenous an external audio system. A sound card can be provided to add additional audio ports to a computer.
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Some laptops have actually a single 1/8-inch audio receptacle. These computers use software to identify whether headphones, a microphone or a headset has been connected.
Analog and digital devices are not interchangeable. There space no adapters that permit connecting a USB headset come a 1/8-inch audio jack, and transforming the plug will not work. Similarly, back the RCA SPDIF connector will certainly fit the line input of any type of stereo system, it will not work. It must be linked to a digital input.
Timothy Smithee is a technical writer specializing in inner operating steps for IT and manufacturing support. He has actually written for diverse publications including "RV Lifestyle" and also "Everyman." the holds a Bachelor of arts in English literary works from the university of western Ontario and a Bachelor of arts in film researches from Carleton University.
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