Recorded sound (5)
I believe the answer is:
audio
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">recorded sound</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for audio that I've seen before include "Sound recording" , "What is heard" , "shown in reproduction" , "Sound, as opposed to vision" , "type of reproduction" .)