irido is part of my thesis : An investigation on Transformation Design in Conventional Recording Studios

Key Objective : Enhancing experience with multimodal stimulus (auditory, visual, olfactory) and incorporating ecology into the design.

• Keywords : Sonic Crystal, Acoustics Aesthetics, Circular Acoustics, Auralization
• The name of irido stems from the latin word : iridophore, referring to its capability reflecting sound back at different wavelengths$\pod \lambda$ and possibly in different polarities.$\pod \phi$
• Dimension : 1.8x1.5x2m
• Material : Reclaimed wood, raw steel, hemp rope

Technically it has different contributions :

• Insertion Loss in Near Field condition
• Diffuse Field in Far Field condition

Its effectiveness is quantified by simulation

Artistically it’s a Multi-sensory installation (Visual, Auditory, Olfactory) with Ecology in Mind.

Its experience is evaluated by Artist in Residence

irido

• Further Readings

<aside> <img src="/icons/key-antique_gray.svg" alt="/icons/key-antique_gray.svg" width="40px" /> OKRs :

Optimize experience (Gezelligheid)

• How environment changes artist’s behaviour (Performance)

Volumetric (not surface) diffuser to preserve energy

• A far cry from conventional absorption based barriers

Incorporating greenery / Ecology

• Upcycling natural materials with greenery incorporated into the acoustic package

Design for Disassembly (LEGO) Reuse, not down-cycled

• Providing Ikea like modular components

Variable Acoustics (empowerment)

• By altering irido, one is able to leverage the acoustic effect for insertion loss and or alternative creative purposes. </aside>

<aside> 📇 "Physical matter is music solidified" - Pythagoras

</aside>

<aside> <img src="/icons/clover-four-leaf_green.svg" alt="/icons/clover-four-leaf_green.svg" width="40px" /> irido empowers artists to optimize experience depending on the application context.

• With local Helmholtz resonators built-in where the substrate (soil) for plants double as the damping. </aside>

Sonic Crystals at Roskilde Festival

What is a sonic crystal ?

Basic Structure of irido

irido shares a lot in common with these historical building blocks

Flow chart of the process (2D)

Temperature condition variations

Material Sweep

Costas Array plot against each other

N=45[5] Costas Array with Rotational Symmetry

Amplitude Shading

2D plots below simulate a spherical radiation source (i.e. a Drummer) and on the other side a vocalist / guitarist would appreciate great insertion loss to be able to hear themselves better as well as for engineers have decent separation (off-axis rejection) in their recordings.

125Hz

250Hz

500Hz

1000Hz

2000Hz

4000Hz

Further simulation in 3D

Time Domain Before & After Insertion

Frequency domain Before & After Insertion