An octave is referred to by musicians in the video production industry (and all other musicians too) to mean a note with the same sound but higher or lower frequency. The technical interval between two sounds having a basic frequency ratio of 2 to 1 will produce one octave difference. (Sound)
Conversations between people or companies which are not recorded and should not be used for any purposes except for being a private and confidential conversation. Off the record is a term commonly used when producing documentary productions, political meetings or similar, where any recorded footage may not be used by a video production company, when both parties agree that it is strictly ‘off the record’. (Production)