B4A Library [B4X] [XUI] AS AudioVisualizer

This view is an audio visualizer that converts decibel values into simulated FFT data and renders one of three styles (spectrum, waveform, or filled wave) on a canvas. It features noise filtering, Gaussian normalization.

The sample project works in B4A and B4I.
You need this libs.

• xFFT
• AudioRecord (B4A)

AS_AudioVisualizer
Author: Alexander Stolte
Version: 1.00

• AS_AudioVisualizer
  • Fields:
    • mBase As B4XView
    • Tag As Object
  • Functions:
    • DesignerCreateView (Base As Object, Lbl As Label, Props As Map)
      Base type must be Object
    • Initialize (Callback As Object, EventName As String)
    • UpdateWithDB (dBValue As Double)
  • Properties:
    • BarColor As Int
    • NoiseThreshold As Double
      NoiseThreshold (0.01) filters out minor noise by setting any value below it to zero.
      Default: 0.01
    • NumberOfBars As Int
      Default: 32
    • RoundBars As Boolean
      If True then the bars are round
      Default: True
    • Sensitivity As Double
      Sensitivity determines how pronounced the amplitude spike is.
      Default: 1.0
    • VisualizationType As String

Changelog

• 1.00
  • Release

Github: github.com/StolteX/AS_AudioVisualizer

Have Fun