Type alias SpectrogramPluginOptions

Type declaration

• Optional alpha?: number

  Some window functions have this extra value. (Between 0 and 1)

• Optional colorMap?: number[][]

  A 256 long array of 4-element arrays. Each entry should contain a float between 0 and 1 and specify r, g, b, and alpha. Each entry should contain a float between 0 and 1 and specify r, g, b, and alpha.

• container: string | HTMLElement

  Selector of element or element in which to render

• Optional fftSamples?: number

  Number of samples to fetch to FFT. Must be a power of 2.

• Optional frequencyMax?: number

  Max frequency to scale spectrogram. Set this to samplerate/2 to draw whole range of spectrogram.

• Optional frequencyMin?: number

  Min frequency to scale spectrogram.

• Optional height?: number

  Height of the spectrogram view in CSS pixels

• Optional labels?: boolean

  Set to true to display frequency labels.

• Optional labelsBackground?: string

• Optional labelsColor?: string

• Optional labelsHzColor?: string

• Optional noverlap?: number

  Size of the overlapping window. Must be < fftSamples. Auto deduced from canvas size by default.

• Optional windowFunc?: "bartlett" | "bartlettHann" | "blackman" | "cosine" | "gauss" | "hamming" | "hann" | "lanczoz" | "rectangular" | "triangular"

  The window function to be used.