Tone Activations for Performing Arts Centers and Theaters

Performing arts centers already play audio in the spaces around the show: walk-in music in the lobby, a sponsor video near the bar, an intermission playlist in the mezzanine. An inaudible tone can connect that audio to a venue or partner app when a patron has opted in. The phone recognizes the tone and opens the program notes, a concessions offer or a season preview, without another QR code on a lobby sign.

This post is about the lobby side of a theater, concert hall or arts center. It is not a plan for the performance itself. The rule is simple: tones and phone prompts belong in the lobby, at intermission and after the show, never in the house while a performance is on.

How it works

A short, inaudible tone is mixed into audio that already plays in an approved front-of-house space. When it plays, a phone running an app with tone detection, and with the patron's microphone permission, recognizes it and does what the venue planned ahead of time:

• Open digital program notes or a cast and creative page during walk-in.
• Save a concessions or merchandise offer at intermission, ready before the line forms.
• Show a season or membership preview as patrons leave.
• Count consented lobby visits by area and time, instead of guessing from foot traffic.

The tone is one piece of the program. It needs an audio source the venue controls, an app patrons already use, and a written plan for what each trigger opens.

Where tones fit in a performing arts center

• Main lobby walk-in: pre-show music or a welcome video tied to program notes.
• Bars and concessions: an intermission playlist tied to a saved offer or pre-order page.
• Gift shop and merchandise tables: store audio tied to cast recordings or show merchandise pages.
• Sponsor and donor lounges: a sponsor loop tied to a "learn more" page, never to a pressure ask.
• Post-show exits and plazas: exit music tied to the next show on the calendar.

For a casino showroom or entertainment-venue plan, see tone activations for casino and entertainment venue promotions. For hotel lobbies and resort spaces, see tone activations for hotel and resort guest experiences.

Never during the performance

A theater's whole promise is an uninterrupted show. A tone program has to protect that:

• No tones in the house during a performance. Do not mix tones into show audio, preshow announcements inside the house, or the sound design.
• No prompts that light up phones in the seats. If a patron's phone could buzz or glow during the show, the trigger is in the wrong place.
• Respect the "phones off" announcement. Lobby triggers should end before the house opens for each act, and restart only at intermission or after the curtain.
• Leave artist and rights holder audio alone. Show music, cast recordings and sound design belong to the production; any use needs written approval from the people who control it.

Safety comes first

Lobbies get crowded fast at intermission and after the show:

• Never touch safety audio. Tones must never mask, delay or ride on fire alarm audio, emergency announcements, or house and lobby PA messages.
• No prompts while people move. Do not trigger prompts on stairs, escalators, ramps, aisles or exits.
• Use written approval from every party. Venue management, front-of-house and audio teams, the production or presenter, and any sponsor involved should approve zones, playlists, hours and speakers in writing.

Consent comes first

Patrons at an arts center span every age. Design for clear choice:

• Explain microphone use before asking. Android's developer guidance says the microphone gives access to particularly sensitive information, and that apps should request only the permissions an action needs.
• Ask at the moment of use, such as when a patron taps "open tonight's program," not at first launch. Android's guidance recommends requesting permissions as late in the flow as possible.
• Be transparent about what the app accesses, why, and what still works if someone says no.
• Make the feature optional, so tickets, programs and offers work fully without it.

Our consent and permission UX checklist for tone apps walks through the full flow.

Test on site, not in the studio

Lobbies are loud, reflective spaces with mixed speakers. A quiet walk-in and a packed intermission bar will not behave the same way, and the path from the final file to the speaker can change the tone before it reaches a phone.

Every pilot starts with an on-site test:

• Map the audio chain in each lobby zone, from the source to the amplifier and speakers.
• Test at real show times, with intermission crowds and phones in hands, pockets and bags.
• Measure each zone separately, so the bar, the gift shop and the main lobby each get their own baseline.

We share expected results only after that test, never before. There are no performance promises in advance.

Measure what matters

Plan measurement before the first tone plays. Track how many patrons have the app, how many granted microphone permission, how many tones were detected in each zone, and how many opened program notes, saved an offer or viewed the season page. Break results down by show, zone and pre-show, intermission or post-show. Our guide to measuring opt-in rates for tone-triggered campaigns lays out the full funnel.

Frequently asked questions

Can patrons hear the tone?

GhostTones tones are designed to be inaudible to most people, so they can sit inside existing lobby audio without changing what patrons hear.

Can tones play during the show?

No. Tones and phone prompts stay in the lobby, at intermission and after the show. Nothing is triggered in the house while a performance is on.

Does every patron get the content?

No. Only people with an app that includes tone detection, who have granted microphone permission, can receive tone-triggered content. The app should work fully for everyone else.

Who needs to approve a theater pilot?

Usually venue management, front-of-house and audio teams, the production or presenter, and any sponsor involved. Get approvals in writing before installation.