CalcNoteFrequency: Note Frequency
In m-vidal/eaR: Perception-Based Auditory and Music Analysis

CalcNoteFrequency

R Documentation

Note Frequency

Description

This function calculates any note frequency for an equal-tempered scale within a range of eight octaves (0-7). The used formula is

\code{frequency}=f_{0} \times (λ)^{\code{N}},

where f_{0} is a fixed frequency defined by default at 440 Hz (\code{A}_{4}). The coefficient λ=√[{12}]{2} allows to calculate the note frequency through N steps; e.g., \code{N}=0 equals to A.

Usage

CalcNoteFrequency(inNote, inOctave)

Arguments

`inNote`	a note string `A`-`G` with or without accidental (e.g. `Bb`). Both sharps (`#`) and flats (`b`) can be used.
`inOctave`	the octave number of the note if empty or not specified, `inNoteNr` is assumed to contain the octave specification.