Headphones – Headsets or earphones used to hear whatever you are recording, or broadcasting, at each given moment.
Hit the post – Deejays often use this term to describe talking up to the point when the lyrics begin without stepping on the beginning of the vocals. It also refers to talking up to the point where the instrumental of a song begins or ramps up.
High Definition Radio or HD Radio – This is when technology transmits digital audio and data alongside existing AM and FM analog signals. Liquity, the developer of this technology, says HD Radio offers FM Multicasting, or the ability to broadcast multiple program streams over a single FM frequency, with static-free, crystal-clear reception and a variety of data services including text-based information.
Hook – This is the part of a song that is unique in the listener’s ear, such as the portion of the song the listener usually likes and remembers the most.
Hour – An industry term that refers to audience measurement. For example, according to Arbitron it means the average number of persons listening to a particular station for at least five minutes during a 15-minute period.