| 释义 |
octave
oc·tave O0027200 (ŏk′tĭv, -tāv′)n.1. Music a. The interval of eight diatonic degrees between two tones of the same name, the higher of which has twice as many vibrations per second as the lower.b. A tone that is eight diatonic degrees above or below another given tone.c. Two tones eight diatonic degrees apart that are sounded together.d. The consonance that results when two tones eight diatonic degrees apart are sounded.e. A series of tones included within this interval or the keys of an instrument that produce such a series.f. An organ stop that produces tones an octave above those usually produced by the keys played.g. The interval between any two frequencies having a ratio of 2 to 1.2. Ecclesiastical a. The eighth day after a feast day, counting the feast day as one.b. The entire period between a feast day and the eighth day following it.3. A group or series of eight.4. a. A group of eight lines of poetry, especially the first eight lines of a Petrarchan sonnet. Also called octet.b. A poem or stanza containing eight lines.5. Sports A rotating parry in fencing.
[Middle English, eighth day after a feast day, from Old French, from Medieval Latin octāva (diēs), from Latin, feminine of octāvus, eighth, from octō, eight; see oktō(u) in Indo-European roots.]
oc·ta′val (ŏk-tā′vəl, ŏk′tə-vəl) adj.octave (ˈɒktɪv) n1. (Music, other) 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 scaleb. one of these two notes, esp the one of higher pitchc. (as modifier): an octave leap. See also perfect9, diminished2, interval52. (Poetry) prosody a rhythmic group of eight lines of verse3. (Ecclesiastical Terms) a. a feast day and the seven days followingb. the final day of this period4. (Fencing) the eighth of eight basic positions in fencing5. any set or series of eightadjconsisting of eight parts[C14: (originally: eighth day) via Old French from Medieval Latin octāva diēs eighth day (after a festival), from Latin octo eight]oc•tave (ˈɒk tɪv, -teɪv)
n. 1. a. a tone on the eighth degree from a given musical tone. b. the interval encompassed by such tones. c. the harmonic combination of such tones. d. a series of tones, or of keys of an instrument, extending through this interval. 2. a series or group of eight. 3. a. a group of eight lines of verse, esp. the first eight lines of a sonnet in the Italian form. b. a stanza of eight lines. 4. a. the eighth day from a religious festival, counting the festival as the first. b. the period of eight days beginning with such a day. [1300–50; Middle English < Latin octāva eighth part] oc•ta•val (ɒkˈteɪ vəl, ˈɒk tə-) adj. octaveA group of eight lines of verse.Thesaurus| Noun | 1. | octave - a feast day and the seven days following itchurch festival, religious festival - a festival having religious significance | | 2. |  octave - a musical interval of eight tones musical octavemusical interval, interval - the difference in pitch between two notes | | 3. | octave - a rhythmic group of eight lines of versestanza - a fixed number of lines of verse forming a unit of a poem |
Translationsoctave (ˈoktiv) noun in music, a series or range of eight notes. 八度音 八度音octave
octave (ŏk`tĭv) [Lat.,=eighth], in music, the perfect intervalinterval,
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 harmonicharmonic.
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 unisonunison,
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 in music. (1) An interval encompassing the eight steps of the diatonic scale or six whole tones. It is one of the perfect consonances. From the acoustical point of view, an octave is the interval between two frequencies f1 and f2, the logarithm of whose ratio to the base 2, in other words log2 (f2/f1), is equal to 1. This corresponds to the ratio of the upper cutoff frequency to the lower cutoff frequency, which equals 2(f2/f1 = 2). One octave equals 1,200 cents or 301 savarts. (2) The eighth step of the diatonic scale. (3) A progression of musical notes that comprises all the basic notes—C (do), D (re), E (mi), F (fa), G (sol), A (la), and B (si) —or the 12 semitones of the chromatic scale. The entire range of notes used in music encompasses seven complete octaves and two incomplete octaves. These octaves progress from the low notes of the musical range to the high notes in the following order: subcontraoctave (an incomplete octave, possessing only three upper notes—A, B flat, and B), contraoctave, great octave, small octave, one-line octave, two-line octave, three-line octave, four-line octave, and an incomplete octave (in Russian, fifth octave) consisting of the single note C. 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. octaveThe interval between two frequencies having the ratio of 2:1.octave1. 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 3. 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 (language)A high-level interactive language by JohnW. Eaton, with help from many others, like MATLAB, primarilyintended for numerical computations. Octave provides aconvenient command line interface for solving linear andnonlinear problems numerically.
Octave can do arithmetic for real and complex scalarsand matrices, solve sets of nonlinear algebraic equations,integrate functions over finite and infinite intervals, andintegrate systems of ordinary differential anddifferential-algebraic equations.
Octave has been compiled and tested with g++ and libg++ on aSPARCstation 2 running SunOS 4.1.2, an IBM RS/6000running AIX 3.2.5, DEC Alpha systems running OSF/1 1.3and 3.0, a DECstation 5000/240 running Ultrix 4.2a, andIntel 486 systems running Linux. It should work on mostother Unix systems with g++ and libg++.
Octave is distributed under the GNU General Public License. It requires gnuplot, a C++ compiler andFortran 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: .octave
OCTAVE Cardiology A clinical trial–Omapatrilat Cardiovascular Treatment Assessment Versus Enalapriloctave 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.See OCT
OCTAVE
| Acronym | Definition |
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| OCTAVE➣Operationally Critical Threat, Asset and Vulnerability Evaluation (software; Software Engineering Institute; Carnegie Mellon University; Pittsburgh, PA) |
octave
Synonyms for octavenoun a feast day and the seven days following itRelated Words- church festival
- religious festival
noun a musical interval of eight tonesSynonymsRelated Wordsnoun a rhythmic group of eight lines of verseRelated Words |