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Topic: Octave

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In the News (Tue 23 Apr 19)

  Octave - Wikipedia, the free encyclopedia
In music, an octave (sometimes abbreviated 8ve or 8va) is the interval between one musical note and another with half or double the frequency.
Octave equivalency is a part of most musics, but is far from universal in "primitive" and early music (e.g., Nettl, 1956; Sachs and Kunst, 1962).
Also monkeys experience octave equivalency, and its biological basis apparently is an octave mapping of neurons in the auditory thalamus of the mammalian brain [1].
en.wikipedia.org /wiki/Octave   (773 words)

 GNU Octave - Wikipedia, the free encyclopedia
Octave's `andand' and `' logical operators are evaluated in a short-circuit fashion (like the corresponding operators in the C language) and work differently than the element by element operators `and' and `'.
Octave has a real mechanism for handling functions that take an unspecified number of arguments, so it is no longer necessary to place an upper bound on the number of optional arguments that a function can accept.
The differences between Octave and MATLAB are usually because the authors of Octave decided on a better and subjective implementation than the way MATLAB does it, and so introduced "user preference variables" so as to allow the user to customize Octave's behavior to be either MATLAB-compatible or to use Octave's new features.
en.wikipedia.org /wiki/GNU_Octave   (758 words)

The practice of having octaves for the feasts of the saints does not seem to be older than the eighth century, and even then it was peculiar to the Latins.
The capitularies of Charlemagne speak of the octaves of Christmas, the Epiphany, and Easter.
Amalarius, after mentioning the four octaves of Christmas, the Epiphany, Easter, and Pentecost, tells us that it was customary in his time to celebrate the octaves of the feasts of Sts.
www.newadvent.org /cathen/11204a.htm   (1189 words)

 Octave - LoveToKnow 1911
The octave thus always falls on the same day of the week as the festival, and any event occurring during the period is said to be "in the octave." In music, an octave is the eighth full tone above or below any given note.
The "law of octaves" was a term applied in 1865 to a relationship among the chemical elements enunciated by J. Newlands.
The word octave is also often used to describe the eight opening lines of a sonnet, in which the rhyme-arrangement is abbaabba, or some modification of this, but properly always on two rhymes only.
www.1911encyclopedia.org /Octave   (357 words)

 Octave stretch
Stumpf (1890a) appears to have been the first to report on the observation that when the frequency of a tone is adjusted such that the auditory sense of octave equivalence is satisfied in comparison with a fixed preceding tone, the frequency ratio of the tones tends to be slightly greater than 2:1.
It may thus be concluded that the gross tendency for octave stretch is superimposed by more effects, in particular, by the oscillating deviations of the ''frequency-to-pitch'' characteristic of an ear that can be indirectly deduced from measurements of binaural diplacusis (van den Brink 1977a, [100]).
The explanation of octave stretch virtually is included in the explanation of octave equivalence (see also topic affinity of tones).
www.mmk.ei.tum.de /persons/ter/top/octstretch.html   (1151 words)

 Octave Chanute in the Aviation History Encyclopedia
Octave Chanute (18 February 1832 - November 23, 1910) was an American railroad engineer and aviation pioneer.
1832 - born Octave Alexandre Chanut, son of Joseph and Eliza (De Bonnaire) Chanut, in Paris, France.
Octave Chanute was a brilliant and innovative railroad engineer.
www.usairnet.com /encyclopedia/Octave_Chanute.html   (668 words)

 Octave - A Brief Introduction to Octave
Octave is a high-level language, primarily intended for numerical computations.
Octave displays an initial message and then a prompt indicating it is ready to accept input.
For Octave to integrate equations of this form, you must first provide a definition of the function This is straightforward, and may be accomplished by entering the function body directly on the command line.
wwwai.wu-wien.ac.at /manuals/hahsler/octave/octave_2.html   (1788 words)

 OCTAVE(sm) Information Security Risk Evaluation
OCTAVE is a workshop-based approach that requires staff members from key operational areas.
The goal of planning is to make sure that the evaluation is scoped properly, that the organization's senior managers support the evaluation, and that everyone participating in the process understands his or her role and receives any training that is required.
The OCTAVE Method requires participants in these workshops to examine the relative priority of assets, based on the impact to the organization if the asset is lost.
www.cert.org /octave/methodintro.html   (4989 words)

 Octave Software
Octave is free software licensed under the GNU GPL.
This octave build for windows is for those who already have the cygwin POSIX compatibility layer installed.
Octave for Linux is more robust and quicker than octave for an equivalent win32 system.
www.sce.carleton.ca /faculty/adler/octave/index.html   (320 words)

 Octave equivalence
Octave equivalence obviously is of little or no help to the auditory system when a melody is split into different octaves.
Yet another limitation in octave equivalence was demonstrated by Thurlow and Erchul (1977a), who investigated the ability of listeners to recognize multiple octaves, i.e., tones in larger pitch distances.
The explanation of octave equivalence, based on this concept, is given in the topic affinity of tones.
www.mmk.ei.tum.de /persons/ter/top/octequiv.html   (993 words)

 Octave - Arizona Ghost Town
Oc Octave's post office was established April 19, 1900 and was discontinued December 31, 1942.
Octave got its name after the eight men that started the first mining company there, Octave Gold Mining company.
Octave supported a school, post office, grocery store, general store, and stage line in its heyday.
www.ghosttowns.com /states/az/octave.html   (198 words)

 Octave   (Site not responding. Last check: 2007-10-22)
In music an octave (sometimes abbreviated to 8ve) is the interval between one musical note and another pitch is twice its frequency.
As well as being used to describe relationship between two notes the word is used when speaking of a range of that fall between a pair an octave In the diatonic scale this is 8 notes if counts both ends hence the name "octave" Italian for 8.
The notation 8va is sometimes seen in sheet music meaning "play this an octave higher written." 8va stands for ottava the Italian word for octave.
www.freeglossary.com /Law_of_Octaves   (616 words)

 Debian -- octave
Octave is a (mostly Matlab (R) compatible) high-level language, primarily intended for numerical computations.
This package is an empty 'virtual' package whose sole purpose is to install the current Octave version from the 2.1 branch (the recommended testing branch).
Debian Octave Group and Rafael Laboissiere are responsible for this Debian package.
packages.debian.org /testing/math/octave.html   (139 words)

 Sweetwater inSync
An octave is a frequency ratio of 2:1.
Octaves are perceived as equal pitch intervals, even though the true bandwidth in Hertz varies with the frequency level of the octave.
Even though an octave is strictly speaking a subjective judgment, it is so closely equal to frequency doubling (no matter where one is in frequency) that it has been defined as an objective measure.
www.sweetwater.com /insync/word.php?find=octave   (198 words)

 The Octave of Energy
The Law of Octaves was first suggested by Pythagoras in ancient Greece.
It is possible to see the development of an individual (if s/he evolves all the way to the 8th circuit) and the development of life itself as the working out of this Octave of Evolution.
But this is strikingly similar to the teachings of Gurdjieff (which may be, according to many, the secret inner teachings of Sufism).
www.deoxy.org /eoctave.htm   (1024 words)

 Octave marks   (Site not responding. Last check: 2007-10-22)
Octave statements are used to mark notes that are to be played one or more octaves higher or lower than written.
If the octave shifting applies to more than a single chord, there should also be a duration specified, reaching to include the last affected note.
Note that specifying the exact beat of a chord indicates the horizontal center of the chord, so if you want the dashed line to reach a bit past the note, it will be necessary to specify a duration slightly beyond the point of the last chord to be included.
www.arkkra.com /doc/uguide/octave.html   (206 words)

 Octave Technology : Powerful Information   (Site not responding. Last check: 2007-10-22)
Envisioning a world of self-describing objects where physical assets have the ability to sense and communicate with each other and the world around them, Octave Technology utilizes Wireless Sensor Networks (WSN) and Auto-ID technologies to streamline inefficient business processes through the development and deployment of enterprise software and middleware solutions.
Octave Technology allows virtually any industry or organization to quickly deploy and benefit from the integration of WSN and Auto-ID technologies and capitalize on their previous IT investments.
Founded in 2003 and born out of a joint venture between leading technology and engineering firms, Octave is creating new markets through innovation by rapidly deploying WSN and Auto-ID enabled systems in a wide variety of industries.
www.octavetech.com   (133 words)

This range is often reduced for overhead drum and cymbal microphones to increase clarity and presence on these instruments' and reduced on lower drums (foot and toms) to reduce boxiness.
Covering about one octave, this range of frequencies is responsible for the attack on percussive and rhythm instruments and the "projection" of mid range instruments.
Covering approximately that last two octaves of sound (6 kHz to 20 kHz), this band of frequencies is responsible for the brilliance and clarity on instruments.
www.recordingeq.com /EQ/req0400/OctaveEQ.htm   (1570 words)

 OCTAVE® Information Security Risk Evaluation
As the figure illustrates, the OCTAVE approach is driven by operational risk and security practices.
The OCTAVE criteria define a standard approach for a risk-driven, asset- and practice-based information security evaluation.
The Security WIPT is a subgroup of the HIPAA Overarching Integrated Project Team, which has the overall responsibility for coordinating with the Department of Defense's effort to comply with HIPAA.
www.cert.org /octave   (256 words)

 Octave-Forge: Octave Wiki
The Octave Wiki ("ScaryOctave" until 2006/04/23) is dedicated to [GNU Octave], a [Matlab]-like numerical programming language.
Octave has extensive tools for solving common numerical linear algebra problems, finding the roots of nonlinear equations, integrating ordinary functions, manipulating polynomials, and integrating ordinary differential and differential-algebraic equations.
It is easily extensible and customizable via user-defined functions written in Octave's own language, or using dynamically loaded modules written in C++, C, Fortran, or other languages.
wiki.octave.org   (372 words)

Octave may take a while to load, because it is a very large application.
The incomplete gamma function  is predefined in Octave.
This should not be surprising, because Octave uses Gnuplot for all its graphics.
beige.ucs.indiana.edu /P573/node92.html   (508 words)

 Octave Chanute
Octave Alexandré Chanute made outstanding contributions to aviation through his detailed descriptions of aeronautical accomplishments, his development of successful man-carrying
This map shows the location of "Chanute Hill," the large dune that Octave Chanute and his assistants used in their first experiments in the summer of 1896.
Octave Chanute's flying biplane glider, also known as the Chanute-Herring glider - 1896.
www.centennialofflight.gov /essay/Prehistory/chanute/PH7.htm   (1643 words)

 [No title]
Octave are high-level computational packages primarily intended for solving problems in linear algebra, and are mostly compatible.
While Matlab is only commercially available, Octave is free under the terms of the Free Software Foundation's GNU General Public License.
GNU Octave is available for Windows and Linux (but not for Mac).
www.math.tntech.edu /machida/2011/idemo.html   (277 words)

 octave. The Columbia Encyclopedia, Sixth Edition. 2001-05
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).
The range of the male voice is roughly an octave below that of the female; men and women supposedly singing in unison actually sing in octaves.
www.bartleby.com /65/oc/octave.html   (134 words)

 Octave-Forge: CodaTypes
GNU Octave is written in C++ and provides an interpreted environment for scientific computing, and supports extensions on itself, by the use of dynamically loaded modules,and shared libraries.
It is assumed that you have GNU Octave compiled with dynamic loading support, shared libraries, and have the GNU Octave development header files in your system.
GNU Octave object hierarchy resembles this octave_value : This is the base type [abstract] for all the octave objects, and simply acts as a abstract data type, that allows, us to have derived classes override the base class virtual member functions to achieve our desired functionality.
wiki.octave.org /wiki.pl?CodaTypes   (2316 words)

Registration Description: Octave GTK+ is a project that aims to add GTK+ bindings to Octave by extending it, and build a GUI for Octave around these features of GTK+.
GNU Octave, as most you will be familiar with, is the scientific computation tool that is used for BLAS & Linear algebraic computations.
Currently GNU Octave exists as a an interpreter written in C++, with support for a language Octave much similar to the language like Matlab.
octave-gtk.sourceforge.net   (842 words)

 The Musical Octave
where the law of octaves will be extended to the meta-physical properties of music and sound bringing into focus
The law of octaves plays an important and crucial part in any phenomenon of music and sound, and the producing of harmonics in standing waves
The Creation of Musical Scales, part II will focus on the acoustic laws behind the musical scales on a global scale, and how numbers and mathematic play a part in creation of the intervals in the octave.
home3.inet.tele.dk /hitower/octave.html   (178 words)

 Octave Encyclopedia Article @   (Site not responding. Last check: 2007-10-22)
This page contains quite a lot of relevant information about Octave.
racing surface, and perhaps a little inexperience all conspired against Magical Ride, who gave way late while finishing third to Octave in Wednesday's Grade 2...
times the frequency of that note (where n is an integer), such as 2, 4, 8, 16, etc. The ratio of frequencies of two notes an octave apart is therefore 2:1. /encyclopedia/Octave   (694 words)

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