Explanation:
<h3>
<em>Audio recording</em> is the process by which sound information is captured onto a storage medium like magnetic tape, optical disc, or solid-state drive (SSD). The captured information, also known as audio, can be used to reproduce the original sound if it is fed through a playback machine and loudspeaker system </h3>
Although there are no conjunctions in this sentence, I guess that the adverb where can be used as a "subordinating conjunction" in the sentence, because it connects the subordinate and the independent clauses.
