What is an octave? - Music: Practice Theory Stack Exchange An octave is simply an interval created by the use of the factor 2 instead - e g if we started with our 100Hz note again, and we wanted to go up an octave, we would double the frequency, taking us to 200Hz If we wanted to go down an octave, we'd halve it, taking us to 50Hz Why is this factor of 2 so special?
相对于 Matlab，Octave如何? - 知乎 如果你爱折腾，可以自行拓展octave，这是开源的优势，还有一个是免费，不知道linux下有没有 matlab，没有的话也算octave的一个优势。其实天朝已经把费用的问题解决了~用用matlab也挺好的，美观，科学也要有艺术。如果你在听 Andrew Ng 的 ML 的话，还是用octave好，配套么。当然你在用matlab，所以octave不
Why is a doubling of frequency called an octave? There are many longer answers here on this topic But the gist is that like the octave (frequency ratio 2:1), small whole-number ratios of frequencies are often heard as "consonant " So the ratio 3:2 between frequencies sounds good (and, as noted, creates an interval called a perfect fifth), as well as the ratio 4:3 (the so-called perfect fourth)
tuning - Was the term octave coined after the development of early . . . Was the term “octave” coined after the development of early music theory? No As shown below, it was already in use by the 11th century to denote the musical interval (although the principal name for the interval at that time seems still to have been diapason) What system was in use in medieval Europe when the term octave arose, and what did the term octave refer to? I'm a little hazy on
Ottava markings - Should this 8va be 8vb? - Music: Practice Theory . . . 8va is an abbreviation for "ottava" ("octave" in Italian) and is commonly used both for higher and lower octave shifts The key difference is the placement of the dashed line: aligned to the top for "octave higher" and aligned to the bottom for "octave lower" 8vb is also sometimes used to indicate an octave lower
terminology - What exactly constitutes Unison? - Music: Practice . . . In most contexts, "unison" means "the same pitch in the same octave " However, as Laurence notes, doubling in octaves is often described as "unison," particularly if a soprano or alto (or several) is singing an octave above a tenor or bass (or several)
alternative tunings - How many notes are in an octave in Indian . . . To use Indian musical terminology, there are 7 swara, 12 swara-prakaar, and 22 shruti in an octave The seven swara in Indian music are the equivalents of the Western do re mi fa so la ti In Indian music, they are called sa re ga ma pa dha ni Of the above, sa and pa are given special status as fixed notes in an octave and have only one variant each; re, ga, dha, and ni have natural and flat
Why are there twelve notes in an octave? - Music: Practice Theory . . . It makes me wonder if the 12-semitone octave sounded good before the advent of "music as we know it" or if it is something of an acquired taste, in which case alternative breakdowns of the octave could be adapted to, like in the case of western vs indian vs east asian music