The sculpture, known as Twins, has been temporarily removed to undergo the renovation works.
The works by Aivaf aim to make the structure greener by using energy efficient lighting to illuminate it.
Created by artist Charlie Hooker, it has been a part of the city’s shopping centre landscape for more than two decades.
The works are expected to be completed by the autumn. (Image: NQ)
Commissioned and funded by the Standard Life Insurance Company, Twins was designed to interact with its environment in a unique way.
The sculpture features sensors that respond to the sun’s movement across the sky, triggering a series of sounds that change with the passing day.
As the sun rises, the sound intensifies, and as it sets, the audio fades.
A ledge built around the base of the sculpture allowed people to sit and enjoy the experience.
The design also incorporated etched bronze plaque surfaces, displaying patterns derived from real weather data recorded in Brighton during 1997 and 1998.
These visual elements were digitally converted into twelve different sound compositions, one for each month of the year.
At night, internal lighting casts twin star-shaped projections onto the ground.
A spokesperson for the company renovating the ‘Twins’ said: “Aivaf will apply its extensive expertise in interactive exhibit design to refurbish Twins, updating the sculpture with the latest in modern technology.
“Renowned for creating immersive audio-visual experiences Aifvaf has produced exhibits across the world from scenic models and interactive props to fully integrated auditory and visual environments.
“Their skill combining sound, light and story telling ensures that Twins will be revamped as a compelling and memorable public artwork for a new generation.
“The two part sculpture marks the culmination of an intricate process that merges artistic vision with scientific sensitivity.”