The phrase describes a process and the tools used to extract the audio component from video content hosted on a popular video-sharing platform, and subsequently save it as a widely compatible audio file format. For instance, a user might employ such a tool to isolate the music track from a concert recording available online, storing it as an independent audio file for later listening.
This functionality addresses several needs, including offline access to audio content, creation of personalized music libraries, and the archiving of audio from lectures, interviews, or other video-based sources. Historically, the rise in demand for this capability coincides with the proliferation of online video and the desire for greater control over media consumption beyond dedicated video platforms.