
Explore the immersive lighting design concept for Kereta Misteri at Dufan, Ancol, Jakarta. Presented by Herwin Gunawan, this video considers how light, shadow, colour, and timed lighting effects can guide attention, build suspense, and support storytelling within a themed attraction.

Explore Jakarta Cathedral’s neo-Gothic interior through architectural animation. Presented by Herwin Gunawan, this video offers a spatial study of architectural form, proportion, and lighting, inviting reflection on how sacred spaces support spiritual and liturgical experience.

Explore lighting scenarios for the 14 Stations of the Cross at Jakarta Cathedral in March 2025. With a smart control system designed and commissioned by ALTA Integra, this project connects architectural lighting with prayer, contemplation, and the spiritual experience of sacred space.

Explore acoustic measurement fieldwork through 360° video documentation shared by Herwin Gunawan. This recording covers background noise, reverberation time, and speech intelligibility testing, providing a view of the measurement process within its surrounding space.

Explore lighting, audio, and acoustic testing during the Indonesia Stock Exchange Main Hall renovation. This short project video documents a stage of ALTA Integra’s work to coordinate technical performance with the hall’s architectural character and user experience.

Explore architectural lighting installation at Jakarta Cathedral in August 2024 through Herwin Gunawan’s project documentation. This video connects lighting design intent with its implementation, reflecting on how light can reveal sacred architecture and contribute to spiritual and liturgical experience.

How will live music sound in a large indoor arena before it's built? This project video from the Gelora Bung Karno Indoor Multipurpose Stadium in Jakarta uses acoustic modeling and auralization of drum sound to test reverberation, echo and low-frequency behavior at the design stage.

How will speech sound inside a large indoor arena before it's built? This project video from the Gelora Bung Karno Indoor Multipurpose Stadium in Jakarta uses acoustic modeling and auralization to let you hear speech in the space, testing clarity, reverberation and intelligibility at the design stage.

How closely do acoustic predictions match field measurements? Explore ALTA Integra’s acoustic modeling and auralization for Indonesia Arena at Gelora Bung Karno, Jakarta, with reverberation time comparisons before and after acoustic treatment.

Explore lighting scenario modeling for the Indonesia Stock Exchange Main Hall, developed by the ALTA Integra Lighting Design Team using DIALux. Presented in Herwin Gunawan’s portfolio, this video illustrates the use of digital visualization to communicate lighting design intent within an architectural space.

Explore facade lighting design for Makassar Cathedral and the role of light in revealing architectural character after dark. This video offers a perspective on how exterior illumination can express the identity and sacred presence of a place of worship.

Explore the testing and evaluation of lighting scenarios at Jakarta Cathedral with the ALTA Integra and Jakarta Cathedral teams. The video examines how architectural lighting can support visual comfort, spiritual experience, and liturgical celebration while revealing the character of sacred architecture.

What makes a classroom or learning space work? This video looks at the key design criteria behind effective learning environments, including acoustics, lighting, thermal comfort, air quality and spatial layout, and how together they support focus, communication and wellbeing.

How light, color temperature and contrast shape the way people feel and behave in places of worship. A building physics view on designing sacred interiors that support reflection, focus and a sense of the transcendent while staying visually comfortable and energy-aware.

A close look at a noise barrier mock-up for a hospital construction project. This short video highlights the role of physical samples in reviewing construction details and coordinating acoustic design intent before installation.