Definitions for "Octave Band"
A frequency interval whose maximum value is twice the minimum value
This is a continuous band of frequencies which span a range such that the highest frequency in the band is twice the lowest frequency. The audio frequency range is separated into octave bands as a matter of convenience, and each band is individually specified by its center frequency, e.g. 63 Hz, 125 Hz, 250 Hz, 500 Hz 1 kHz, 2 kHz, 4 kHz, 8 kHz, and 16 kHz.
A range of frequency where the highest frequency of the band is double the lowest frequency of the band. The band is usually specified by the center frequency.
(See "octave") OEM (See "original equipment manufacturer")