Trailcast
Audio trails that follow your position, from Earth's floodlands to the domes of Mars. Visitors tap once and walk. Every story plays when they arrive.
Sonaris makes audio that plays at the right place, on any world. Habitat walks that narrate themselves at 30 metres. Domes that change their acoustics in a single gesture.
Every Sonaris product starts from the same question: what should someone hear, right here, right now? For a colonist on her first walk it is the story of the dome ahead. For a cathedral under the ice it is the shape of the next chord.
Audio trails that follow your position, from Earth's floodlands to the domes of Mars. Visitors tap once and walk. Every story plays when they arrive.
A resonance console. Each stop adds a layer of sound to the room.
Explore AeolisA flying sound guide. It goes a few metres ahead of you and leads you from story to story.
Explore MurmurWhere it began: boat trails over the drowned polders of 's-Hertogenbosch.
Crater-edge walks in permanent twilight, with the Earth hanging low.
Nine domes linked by glass corridors. Our busiest trail network.
Tethered walks across bright salt fields. Hold on to the rail.
Home of the largest Aeolis console ever built, under 11 km of ice.
This is the real trigger logic, running in your browser. The walker follows the Tharsis Ring corridor with a Murmur flying just ahead. When the MPS position falls inside a stop's circle, and the fix is accurate enough, the story plays. Stops reached at the same time wait their turn.
Audio starts by itself when you reach a stop. The display can go dark to save power; the trail keeps listening.
Aeolis treats a room like an instrument. Every stop adds a layer, from deep Nebula foundations to bright Starfield shimmer. Save combinations as lettered scenes, the way organists have marked their scores for five centuries. Choose a scene, pull a stop, play a key.
Under the ice of Europa, sound travels strangely. Aeolis drives 4,000 resonators in the walls, so a choir of twelve can sound like a hundred, and a whisper reaches the back row.
You build the trail yourself. If you would rather have our field crew do it, they travel.
You get one start page with everything in one place. One link to keep.
Import a habitat plan or an orbital scan, then click to place each stop.
Type the story, pick a voice, generate. Or record your own in the airlock.
One trail link and a code. Put it on a hatch, a flyer or a Murmur node.
A Murmur is a small flying speaker. It waits at the start of the trail, and when you set off it lifts to eye height and stays a few metres in front of you. The story comes from where you are heading, so you simply follow the sound. Stop to look around and it waits. Take a wrong turn and it comes back for you.
A Murmur speaks in the voice the trail maker chose. There are 48, from Earth Dutch to Lunar Creole. Type the story for each stop, pick a voice, and spell a crater name the way it sounds if it comes out wrong.
Tap a voice to hear it. Tap again to stop.
Every plan includes the player, the editor and synthetic voices. Stop any cycle. Pay yearly and get two months free.

Hans Latour started Sonaris in 2031, on the water. He had spent a career on dry land, in recreation, websites and booking systems. When the polders around 's-Hertogenbosch flooded for good, the old cycling routes became boat routes, and nobody knew what they were floating over. Hans put the stories back where the villages had been.
The idea travelled. First to the Moon, where the crater walks needed a guide who never got tired. Then to Mars, where his team learned that 30 metres is the right radius in any gravity.

Aeolis came from the organ bench. Hans was tired of pencilling stop numbers into the margins of his scores, so he wrote an app that remembered them for him. Sixty years later its descendant tunes a cathedral under the ice of Europa.
One trail, every feature, no credits needed. Want our field crew to build it? Ask for a quote.