Octave ((LINK)) Download Mac

In music, an octave (Latin: octavus: eighth) or perfect octave (sometimes called the diapason)[2] is the interval between one musical pitch and another with double its frequency. The octave relationship is a natural phenomenon that has been referred to as the "basic miracle of music", the use of which is "common in most musical systems".[3] The interval between the first and second harmonics of the harmonic series is an octave.

To emphasize that it is one of the perfect intervals (including unison, perfect fourth, and perfect fifth), the octave is designated P8. Other interval qualities are also possible, though rare. The octave above or below an indicated note is sometimes abbreviated 8a or 8va (Italian: all'ottava), 8va bassa (Italian: all'ottava bassa, sometimes also 8vb), or simply 8 for the octave in the direction indicated by placing this mark above or below the staff.

Octave Download Mac

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Most musical scales are written so that they begin and end on notes that are an octave apart. For example, the C major scale is typically written C D E F G A B C (shown below), the initial and final C's being an octave apart.

Because of octave equivalence, notes in a chord that are one or more octaves apart are said to be doubled (even if there are more than two notes in different octaves) in the chord. The word is also used to describe melodies played in parallel one or more octaves apart (see example under Equivalence, below).

Octaves are identified with various naming systems. Among the most common are the scientific, Helmholtz, organ pipe, and MIDI note systems. In scientific pitch notation, a specific octave is indicated by a numerical subscript number after note name. In this notation, middle C is C4, because of the note's position as the fourth C key on a standard 88-key piano keyboard, while the C an octave higher is C5.

The notation 8a or 8va is sometimes seen in sheet music, meaning "play this an octave higher than written" (all' ottava: "at the octave" or all' 8va). 8a or 8va stands for ottava, the Italian word for octave (or "eighth"); the octave above may be specified as ottava alta or ottava sopra). Sometimes 8va is used to tell the musician to play a passage an octave lower (when placed under rather than over the staff), though the similar notation 8vb (ottava bassa or ottava sotto) is also used. Similarly, 15ma (quindicesima) means "play two octaves higher than written" and 15mb (quindicesima bassa) means "play two octaves lower than written."

The abbreviations col 8, coll' 8, and c. 8va stand for coll'ottava, meaning "with the octave", i.e. to play the notes in the passage together with the notes in the notated octaves. Any of these directions can be cancelled with the word loco, but often a dashed line or bracket indicates the extent of the music affected.[4]

After the unison, the octave is the simplest interval in music. The human ear tends to hear both notes as being essentially "the same", due to closely related harmonics. Notes separated by an octave "ring" together, adding a pleasing sound to music. The interval is so natural to humans that when men and women are asked to sing in unison, they typically sing in octave.[5]

Octave equivalence is a part of most advanced[clarification needed] musical cultures, but is far from universal in "primitive" and early music.[7][failed verification][8][clarification needed] The languages in which the oldest extant written documents on tuning are written, Sumerian and Akkadian, have no known word for "octave". However, it is believed that a set of cuneiform tablets that collectively describe the tuning of a nine-stringed instrument, believed to be a Babylonian lyre, describe tunings for seven of the strings, with indications to tune the remaining two strings an octave from two of the seven tuned strings.[9] Leon Crickmore recently proposed that "The octave may not have been thought of as a unit in its own right, but rather by analogy like the first day of a new seven-day week".[10]

Regarding octave: I was very impressed with the similarity of octave syntax. It didn't take me much time to transport my MATLAB scripts to octave. Meanwihile I have a particular problem on printing markers jointly with errorbar wich was fixed by Jarno Rajahalme at nabble and to change the xtick font size, which workaround I got in a question response at nabble. So it still have some bugs which with some effort can be overcome. If you experience some problems you may try nabble mailing forum: [email protected]. By the way my team cannot adapt (user friendly) to it such as they adapt to MATLAB, so we're still using MATLAB. Since MATLAB is built under gnuplot, another way to correct its bugs is editing the generated gnuplot file. The best IDE I found to it was QtOctave, that I made a short review in "Remember Blog".

Regarding R: according to a research made by SciViews, R's performance is superior to MATLAB and octave. I don't have much experience with R. I studied mclust package to wrote a wikibook chapter about EM Clustering in R. By the way, they seem to have a very active community. So you may find third party packages to proposals, which are not IMO so standardized. The best IDE I found was StatET plugin for eclipse, JGR (Java GUI for R) and emacs. Despite the time cost to learn a new programming language, if I would choose an open source platform to make my experiment graphics and some data mining analysis I would try R.

Finally, octave has parcellfun and pararrayfun which are very powerful parallel processing tools which matlab completely lacks. There is a parfor in matlab, but it's not the best way of doing it in my opinion.

Cons for octave are that they are slightly behind on toolboxes, though if you look you can find things similar. fsolve and lsode seem a little slower, but more robust, in octave for some reason. Also a big bummer for some people tends to be the lack of symlink and the DAQ toolbox, but that stuff is going to be proprietary anyway.

It's interesting to see how the open source alternative works for statistics but not for numerical analysis. R (the octave of statistics) is nowadays much popular than the commercial S-plus (the matlab of statistics). The issues mentioned as reasons not to switch away from matlab found in the other answers were also applicable to R. But still everybody just started contributing and now R is the standard, with better graphics, better packages and no more vendor lock-in.

I then realized that maybe it matters whether I invoke the command before or after inputting the note. I have been trying to change the octave of a note that I already input. So I decide to go back to the preferences and see if I can look around.

I frequently want to change the tab from the lower octive which may be on strings 6,5,4 to the upper octave which may be on the strings 1,2,3 in the same fretboard position. All the notes are the same. If I use the GP command "Move up one octave" it moves the tab up 12 frets which I dont want. For instance, if I have a tab which notes are on frets 5,7,8 on the fourth string, G,A,Bb. I want to move the same notes G,A,Bb to the upper strings 1,2,3 it would be Fret 8 on 2nd string, fret 5 and 6 on 1st string. I've tried various things with transposing but can't get what I want. i would think this would be a common thing? Help please.

Octave is called quietly by means of "System Exec.vi" in "octave_exec.vi". Usually Octave creates a lot of stdout output when starting. To remove unwanted output, you can apply filter keyword, and only stdout output after the keyword will be returned. See a "multiply.m" Octave script. Octave errors are parsed in a simple way to create LabVIEW error, Octave warnings are ignored. In the case of error, call string of Octave is sent to the error description, so you can copy it and test it manually from windows console.

basically,i have downloaded the octave using the link you provided then the two V.Is that you have given and the multiply.m.i have put these 3 files in the same folder.i run test octave.vi and i get 0 as result stderr returns empty string,hence no error returns..Am thinking,since you have already tested it then this means that I am doing something wrong,if you can just give me some suggestions on what you think i could be doing wrong that might help me figure it out,,,i use windows Xp..i have trired setting changing result=value1.*value2 in .m file and setting result=2 and hence expecting that when i run test octave i will get a 2 as the result but it returns 0..(with no error returns)

And the GNU Octave is working? Did you tried to run octave separately from Labview and tested the multiply.m? The vi does nothing more than calling octave from commandline. I have tested it in winxp, unfortunately every windows OS is behaving slightly differently, and some errors shows up on stderr, but some errors shows only in stdout. Switch off the filter key and look at the full output of the command line. You can also take a look, what command is sent to System Exec.vi and try the command yourself in window command line.

awesome..i have run octave alone and that's when i figured out why i was getting the zero..basically value1 and value2 are passed from test octave.vi as floating points in string form,hence the 3 and 4 are passed as 3,0 and 4,0 respectively however multiply.m receives the the two variables as multiply(3,0,4,0) and since it's expecting only two variables it seems to me like it will pick the fast two numbers (in this case 3 and 0) and hence return the result as zero ...thank you very much

Anyway I am working on better solution using pipes. Pipes in windows are a pain, however it already works. With this solution the octave functions as some instrument. You initialize, send commands, reads variables etc. Unfortunately it is not yet finished. e24fc04721