Sound carries the emotion of every dome show.
Plan a system that does it justice. Start with your dome size and a few simple questions, and see the layout, budget, timeline and partners that fit.
Sound needs grow with the distance around your dome, not its floor area. A dome twice as wide needs roughly twice the speakers, more powerful ones, and more bass to fill the air.
Speakers and amplifiers that old are usually past their best, and parts get hard to find. Many integrators will recommend a full replacement. A tuning visit will tell you for sure.
What should sound do for your audience?
No technical knowledge needed. Answer from your gut; every answer shapes the system on the next page.
Your sound system
The numbers name the speaker groups: speakers around you at ear level, then the bass channel (the ".1"), then speakers overhead. So 7.1.4 means 7 around you, 1 bass channel and 4 overhead.
What goes in your dome
How sound reaches the speakers
Mixing and live sound, built in
Every plan here includes a professional digital mixing console and quality speaker processing. They cost little next to the rest of the system and they decide how good everything sounds: presenters, musicians, touring artists and every show.
Speaker quality tier
For production designers
Higher channel counts, ultra low frequency impact and more
Sound carries the emotional experience in a dome.
Pictures fill the sky, but sound decides how it feels. A better system lifts every show you already own, opens doors to new programs, and reaches every patron in every seat.
One system, every format
How a spatial processor interpolates between formatsMost fulldome libraries are mixed in 5.1. A spatial processor reads each show in its own format and renders it to your exact speakers: it can upmix stereo and 5.1 so overhead speakers join in, play 7.1.4 and Dolby Atmos natively, decode Ambisonic soundfields, and place live microphones anywhere in the sky. Your library is never stranded, and new content plays as its creators intended.
What research says
Why sound quality changes the whole experienceUse cases and impact
Sound that follows the sky
In live shows, sound can respond to navigation. As the presenter flies to Saturn, the soundfield crossfades to a new ambience; a planet carries its own sound object that moves with it across the dome; a cue triggers a swell as the Sun rises over the horizon.
Where to find immersive audio
For production, demos and live useWhat it will likely cost, all in
A planning range for a professional integrator to deliver this turnkey: equipment, mixing, installation, tuning, training and contingency. Use it to set expectations and start conversations. These are indicative draft ranges, not quotes, and have not yet been checked against real bids.
From first call to first show
Partners, bids and funding
An integrator designs, supplies, installs and tunes your system, and stands behind it afterward. Choosing the right partner matters more than choosing the right speaker brand.
Start with a tuning visit
Hire the integrator you are considering to tune and evaluate your current system first. You get better sound right away, a measured report on what you have, and a low risk way to see how they work, communicate and listen before you trust them with the big project.
International dome specialists
Companies with installs across many venues or countries. Listing is not an endorsement.The nearest strong professional AV integrator is often a great partner: fast service calls, a local support layer, and someone who can be on site in an hour. Many venues pair a dome specialist for design and tuning with a local integrator for installation and ongoing support.
RFQ or RFP?
How to run the bid
How to score the bids
Weights are a starting point. Agree on them before bids arrive.
Questions to ask every bidder
What a good bid includes
Warning signs
Funding the project
Who makes what
Domes that have done it
Real installs to study, visit or call aboutTuning and calibration
Every system drifts. Speakers age, settings get changed, a driver quietly fails. Regular checks keep shows sounding the way they were mixed, and a professional tune is the single best value in dome sound.
The reference level, in plain words
Cinemas set every speaker so that a test noise plays at the same known loudness at the reference seat. Domes can borrow the same method: play pink noise at 20 dB below full scale on one channel at a time, measure with a C weighted meter on slow response, and set each channel to 85 dB. The bass channel is set about 10 dB higher in its own band. When every venue does this, a show mixed in one dome plays at the intended loudness in another.
The IPS Immersive Audio Committee is drafting a dome reference level specification built on this practice. The figures above are draft and still under discussion, including exactly how the bass channel is set.
When to call a professional
- Voices sound muddy, harsh or hard to follow in some seats
- Some seats hear very different levels than others
- A speaker sounds rattly, distorted or silent
- Bass is boomy in one area and missing in another
- After any change to speakers, screen, seats or processing
- Once a year, as routine care
Sound formats, explained simply
What each layout feels like from a seat, what it takes, and where to learn more.
Channels, objects and spheres
Channel based
The mix is made for a fixed set of speakers, like 5.1 or 7.1.4. Simple and universal; it shines when your speakers match the layout it was mixed for.
Object based
Sounds are stored with their position, and a processor places them on whatever speakers you have. Dolby Atmos works this way. One mix adapts to many rooms.
Scene based (Ambisonics)
The whole sound sphere is captured as one field and decoded to any speaker array. A natural fit for a hemisphere, and popular with fulldome artists.