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GNU Octave is a scientific programming language for scientific computing and numerical computation.Octave helps in solving linear and nonlinear problems numerically, and for performing other numerical experiments using a language that is mostly compatible with MATLAB.
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Octavian Teodorescu (born 29 January 1963), known professionally as Octave, [1] [2] is a Romanian musician, composer, songwriter and producer from Bucharest, Romania. He is a pioneer of electronic music and the use of computers and synthesizers in music in Romania , with a science fiction touch. [ 3 ]
Monkeys experience octave equivalence, and its biological basis apparently is an octave mapping of neurons in the auditory thalamus of the mammalian brain. [12] Studies have also shown the perception of octave equivalence in rats, [13] human infants, [14] and musicians [15] but not starlings, [16] 4–9-year-old children, [17] or non-musicians.
A jump from the lowest semitone to the highest semitone in one octave doubles the frequency (for example, the fifth A is 440 Hz and the sixth A is 880 Hz). The frequency of a pitch is derived by multiplying (ascending) or dividing (descending) the frequency of the previous pitch by the twelfth root of two (approximately 1.059463).
Octave effect boxes are a type of special effects unit which mix the input signal with a synthesized signal whose musical tone is an octave lower or higher than the original. The synthesised octave signal is derived from the original input signal by halving (octave-down) or doubling (octave-up) the frequency.
The cent is a logarithmic unit of measure used for musical intervals. Twelve-tone equal temperament divides the octave into 12 semitones of 100 cents each. Typically, cents are used to express small intervals, to check intonation, or to compare the sizes of comparable intervals in different tuning systems.
Ten Cs in scientific pitch notation. Scientific pitch notation (SPN), also known as American standard pitch notation (ASPN) and international pitch notation (IPN), is a method of specifying musical pitch by combining a musical note name (with accidental if needed) and a number identifying the pitch's octave.