VU Meter

This agent takes audio in, calculates the RMS of the signal and outputs LED status values suitable for displaying as a bar-like VU meter.

Inputs

• Audio In : can take many audio inputs into the single port. The RMS is calculated as the average RMS of the combined signals (NB. it's not additive - should it be?)

Outputs

• light out : suitable for plumbing into kgroup/keyboard 'light input'

Parameters

• size : the number of keys to be used to display the VU meter : default 5
• signal threshold : (dB) signal present level/green. default : -40
• high threshold : (dB) signal high level/orange. default: -6
• clip threshold : (dB) signal clip level/red. default: -1
• clip hold : (seconds) seconds to hold the red light if the signal clips. default 5

Example Wiring

You will need to attach VU meter via a kgroup as shown