octave

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OCTAVE

Cardiology A clinical trial–Omapatrilat Cardiovascular Treatment Assessment Versus Enalapril

octave 

The interval between two frequencies having a ratio of two to one. Example: from 4 to 8 c/deg. Two octaves is a quadrupling of frequencies, and so on. Octaves are commonly used in specifying the bandwidth of the frequencies (e.g. spatial frequencies) to which cells in the visual pathway respond. See cycle per degree.
References in periodicals archive ?
116, and the uppermost note in the next measure, should be surmounted by an 8va sign.
Details: Ministry of Public Finance, 8va Avenida y 21 Calle Zona 1, Guatemala, Guatemala Contact: Contact: Hugo Beteta, Minister of Public Finance.
Semanalmente, desde la 3ra sem previa a la fecha probable del parto hasta la 8va sem de lactancia, posterior al ordeno de la manana se evaluo la CC [13] y se obtuvieron muestras de sangre en tubos con heparina mediante venopuncion coccigea; el PV se deter mino durante las 8 sem posparto con una bascula fija (Romana, 2500 kg, Cooprem, Chile).
Additionally, students should have judicious knowledge of how to manage thirds, sixths and an 8va marking in orchestral reductions.
As Eugene Schweitzer has pointed out ("The Transposing Cello [i.e., Treble] Clef in Cello Music," Strad 93 [1982]: 257-59), in this perverse system the "8va" sign above notes actually means that they should be played at pitch.
Tuneful, pleasing melodies lack development; many rely on 8va repetition.