Editing Query by humming (section)

{{Short description|Music identification system}}
{{inline|date=August 2012}}
'''Query by humming''' ('''QbH''') is a [[Music information retrieval|music retrieval]] system that branches off the original classification systems of title, artist, composer, and genre. It normally applies to songs or other music with a distinct single theme or melody. The system involves taking a user-hummed or whistled [[melody]] (input [[Information retrieval|query]]) and [[Search by sound|comparing it]] to an existing [[database]]. The system then returns a ranked list of music closest to the input query. 

One example of this would be a system involving a [[portable media player]] with a built-in [[microphone]] that allows for faster [[Search engine technology|searching]] through [[Digital media|media]] files.

The [[MPEG-7]] standard includes provisions for QbH music searches.

Examples of QbH systems include [[ACRCloud]], [[SoundHound]], Musipedia, [[Tunebot]] and [[Google Search]].