Small octave definition of Small octave in the Free Online Encyclopedia.

octave (ŏk`tĭv) [Lat.,=eighth], in music, the perfect interval interval, in music, the difference in pitch between two tones. Intervals may be measured acoustically in terms of their vibration numbers. They are more generally named according to the number of steps they contain in the diatonic scale of the piano; e.g.
..... Click the link for more information. between the 1st and 8th tones of the diatonic scale. The upper note of a perfect octave has a frequency of vibration twice that of the lower, and in modern Western notation the two have the same letter name. The octave is the first overtone (see harmonic harmonic.

1 Physical term describing the vibration in segments of a sound-producing body (see sound ). A string vibrates simultaneously in its whole length and in segments of halves, thirds, fourths, etc.
..... Click the link for more information. ). The range of the male voice is roughly an octave below that of the female; men and women supposedly singing in unison unison, in music, tones identical in pitch produced by two or more parts or voices. In popular usage a vocal composition is said to be sung in unison even though some of the voices are separated from others by the interval of an octave.
..... Click the link for more information. actually sing in octaves.

octave

a. the interval between two musical notes one of which has twice the pitch of the other and lies eight notes away from it counting inclusively along the diatonic scale

b. one of these two notes, esp the one of higher pitch

c. (as modifier): an octave leap

2. Prosody a rhythmic group of eight lines of verse

a. a feast day and the seven days following

b. the final day of this period

4. the eighth of eight basic positions in fencing

octave [′äk·tiv]

(acoustics)

The interval in pitch between two tones such that one tone may be regarded as duplicating at the next higher pitch the basic musical import of the other tone; the sounds producing these tones then have a frequency ratio of 2 to 1.

(physics)

The interval between any two frequencies having a ratio of 2 to 1.

(language)

Octave - A high-level interactive language by John W. Eaton, with help from many others, like MATLAB, primarily intended for numerical computations. Octave provides a convenient command line interface for solving linear and nonlinear problems numerically.

Octave can do arithmetic for real and complex scalars and matrices, solve sets of nonlinear algebraic equations, integrate functions over finite and infinite intervals, and integrate systems of ordinary differential and differential-algebraic equations.

Octave has been compiled and tested with g++ and libg++ on a SPARCstation 2 running SunOS 4.1.2, an IBM RS/6000 running AIX 3.2.5, DEC Alpha systems running OSF/1 1.3 and 3.0, a DECstation 5000/240 running Ultrix 4.2a, and Intel 486 systems running Linux. It should work on most other Unix systems with g++ and libg++.

Octave is distributed under the GNU General Public License. It requires gnuplot, a C++ compiler and Fortran compiler or f2c translator.

Latest version: 2.0.16 (released 2000-01-30), as of 2000-06-26.

home.

ftp://ftp.che.wisc.edu/pub/octave/ or your nearest GNU archive site.

E-mail: <bug-octave@bevo.che.wisc.edu>.

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