The process of extracting audio content from a video hosted on YouTube and transforming it into a widely compatible audio file format, specifically MPEG-1 Audio Layer 3, allows users to listen to the audio portion of the video without needing to stream or view the visual component. For instance, an individual might isolate the audio of a lecture or music performance available on the platform to listen to while commuting or exercising.
This practice offers several advantages, including reduced data consumption for audio-only listening, offline accessibility to desired audio content, and the creation of personalized audio collections from various YouTube sources. Historically, this function filled a need for users who wanted to engage with content in a non-visual manner, pre-dating widespread adoption of dedicated podcasting platforms.