Designing outdoor furniture that demonstrates sound synthesis requires a blend of creativity, engineering, and acoustic principles. Start by selecting materials that naturally enhance sound, such as resonant woods or metals, or incorporate embedded speakers for a more controlled audio experience. The structure of the furniture should amplify or modulate sound—consider hollow designs or perforated surfaces to influence acoustics.

Sustainability is key; opt for eco-friendly materials like bamboo or recycled metals to align with modern design trends. Additionally, integrate technology such as Bluetooth-enabled sound modules for customizable audio. The goal is to create functional, aesthetically pleasing pieces that also serve as interactive sound installations, transforming outdoor spaces into immersive environments. Experiment with shapes and textures to achieve the desired acoustic effects while ensuring durability against weather conditions.