Seems like a 640×480 colour video should be more complex than a stereo signal audio.
In: Technology
Put simply, digital audio can actually be transmitted over a single coaxial (cables with RCA connectors on the end are generally coaxial cables) and even fiber optics. Once that digital signal runs through digital to analog (D/A) converter, then you’re just running analog electricity, which needs to remain in two separate circuits from there to the speaker. The sound information is actually a slight voltage change on the wire and not actual data. if you were to push both audio channels into a single wire, the signals would blend into a summed monophonic signal.
Note: You don’t listen to digital sound, ever. Every single device that produces sound is producing it from an analog source. Even bluetooth ear buds convert the data to analog before pumping it to the speakers. the D/A converter is inside the ear bud.
In fact the only way that stereo even came into existence was when someone had the brilliant idea of doubling the audio circuitry to provide audio for each ear. Even inside the amplifier, there are two discreet channels all the way out to the speaker outputs. Does that clarify?
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