* Compute all internal data required for the analyzer, based on its current settings

* Generate currently selected gradient

* Returns the energy of a frequency, or average energy of a range of frequencies * * @param [{number|string}] single or initial frequency (Hz), or

* Return scaled frequency according to the selected scale

* Internal function to change canvas dimensions on demand

* Shorthand function for setting several options at once * * @param {object} options

* Return the FFT data bin (array index) which represents a given frequency

* Return the frequency (in Hz) for a given FFT bin

* Normalize a dB value in the [0;1] range

* Select a gradient for one or both channels * * @param {string} name gradient name * @param [{number}] desired channel (0 or 1) - if empty or i

* Connects an HTML media element or audio node to the analyzer * * @param {object} an instance of HTMLMediaElement or AudioNode * @returns {obje

* Start / stop canvas animation * * @param {boolean} [force] if undefined, inverts the current state * @returns {boolean} resulting state after

* Generate the X-axis and radial scales in auxiliary canvases

* Set object properties

* Connects the analyzer output to another audio node * * @param [{object}] an AudioNode; if undefined, the output is connected to the audio contex

* Disconnects audio sources from the analyzer * * @param [{object|array}] a connected AudioNode object or an array of such objects; if falsy, all

* Disconnects the analyzer output from other audio nodes * * @param [{object}] a connected AudioNode object; if undefined, all connected nodes are

* Returns current analyzer settings in object format * * @param [{string|array}] a property name or an array of property names to not include in t

* Stop the analyzer

* Redraw the canvas * this is called 60 times per second by requestAnimationFrame()

* Returns analyzer bars data * * @returns {array}

* Registers a custom gradient * * @param {string} name * @param {object} options

* Set custom parameters for LED effect * If called with no arguments or if any property is invalid, clears any previous custom parameters * * @p

* Start the analyzer

* ========================================================================== * * PUBLIC PROPERTIES GETTERS AND SETTERS * * ===================

* CONSTRUCTOR * * @param {object} [container] DOM element where to insert the analyzer; if undefined, uses the document body * @param {object} [opt

* Destroys instance