BACKGROUND

Users are more frequently using computing devices and systems through a voice-based interface. One might use a voice-based interface to perform various tasks such as searching the internet, purchasing a product, playing a song, or launching an application. Often, voice-based interfaces serve as a frontend to a text-based interface. For example, a user's spoken-form request (e.g., an audio recording of the command “play song A”) is converted into a textual-form (e.g., the text “play song A”) for downstream processing such as by a search engine.

