Interface AnalysisDataValue

interface AnalysisDataValue {
    active: boolean;
    bands: { all: number; bass: number; mid: number; treble: number };
    dataArray: null | Float32Array;
    db: { all: number; bass: number; mid: number; treble: number };
    keepAlive: boolean;
    lastUsed: number;
    node: null | AnalyserNode;
}

Properties

active bands dataArray db keepAlive lastUsed node

Properties

active

active: boolean

Whether the analyzer is currently active.

bands

bands: { all: number; bass: number; mid: number; treble: number }

Normalized [0,1] values for the same bands.

Type declaration

  • all: number

    Normalized amplitude for the entire audible range.

  • bass: number

    Normalized amplitude for low frequencies.

  • mid: number

    Normalized amplitude for midrange frequencies.

  • treble: number

    Normalized amplitude for high frequencies.

dataArray

dataArray: null | Float32Array

The FFT frequency data buffer used by the AnalyserNode.

db

db: { all: number; bass: number; mid: number; treble: number }

Raw average decibel values for each frequency band.

Type declaration

  • all: number

    Average dB in ~20-20000 Hz.

  • bass: number

    Average dB in ~20-200 Hz.

  • mid: number

    Average dB in ~200-2000 Hz.

  • treble: number

    Average dB in ~2000-8000 Hz.

keepAlive

keepAlive: boolean

If true, the analyzer remains active and will not be disabled after inactivity.

lastUsed

lastUsed: number

The timestamp when data was last requested.

node

node: null | AnalyserNode

The AnalyserNode for this context, or null if inactive.

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