The premise
A PA is a compromise you stopped noticing
For generations, live event audio has worked the same way: put one signal into the air, at one volume, in one language, and do your best to make it work for everyone in the room.
But audiences aren’t one listener.
Some need it louder. Some need another language. Some need hearing assistance. Some are sitting beyond the reach of the room entirely. Meeting those needs has traditionally meant more speakers, more equipment, more receivers, more infrastructure—or simply accepting that not everyone gets the same experience.
AllEventCast changes the equation.
Instead of making the room adapt to the audio, the audio adapts to each listener—delivered directly to the device already in their pocket, alongside the traditional PA or in place of it.
The PA serves the room. AllEventCast serves the person.
Their phone is a receiver you did not have to buy, ship, charge, sanitise or count back in.
Deployment
Three ways it goes in
Most integrators land on the second one. It is the lowest-risk way to add capability to a room without touching the design that already works.
Replacement
No PA at all. Meeting rooms with no installed system, outdoor sites under a noise ordinance, historic venues where you cannot fly anything, load-ins where the audio budget did not survive. The programme goes straight to phones.
Extension
The PA stays exactly as designed and specified. AllEventCast runs in parallel off a matrix output — picking up the back of the room, the overflow, the concourse, the lobby, and everyone attending from elsewhere. Nothing in the existing system changes.
Assistive & multilingual
A per-listener path at a per-listener volume, in a per-listener language, on a device they already know how to operate. No receiver inventory, no neck loops to issue, no interpreter booth to build.
Signal flow
Where it sits in the rack
Comparison
What each path can actually do
| PA alone | PA + assistive receivers | PA + AllEventCast | |
|---|---|---|---|
| Even level front to back | Design-dependent | Design-dependent | Per listener |
| Per-listener volume | No | Yes, on issued units | Yes, on their own device |
| Second language | Second room | Second channel, second interpreter | Live, listener-selected |
| Overflow & concourse | Extra speakers | Extra transmitter coverage | Included |
| Remote attendees | No | No | Same link |
| Receiver inventory | — | Purchase, charge, sanitise, recover | None |
| Scales with headcount | To design limit | To units owned | Not hardware-bound |
| Paid access | No | No | Optional per-listener pass |
| Works without data service | Yes | Yes | No |
| Latency vs the room | Speed of sound | Near-instant | <1s natively<1 second latency using built-in or wired audio. Bluetooth devices may add additional latency. |
The last two rows are why we lead with extension rather than replacement. A stream needs working data service and arrives under a second behind the loudspeakers — audible if a listener has one ear on the PA and one on a phone, irrelevant if they are in the overflow room or at home. For a keynote where failure is not an option, the PA is the primary path and this is the second one. Say that to your client before they hear it from someone else.
Accessibility
Hearing assistance without the handout
Traditional assistive listening often means providing dedicated receivers—equipment that has to be purchased, charged, distributed, collected and maintained. It also requires the attendee to seek one out.
AllEventCast removes that extra step. Attendees listen privately on their own phones, using their own earbuds or compatible hearing devices. No special receiver to request, no equipment desk and no need to identify yourself as someone who needs assistance.
Hearing assistance becomes part of the experience, not a special accommodation you have to ask for.
On ADA compliance
Effective-communication obligations under the ADA depend on the venue, the event, the request and your own written policy, and specific technical standards apply to assistive listening systems in assembly areas. AllEventCast can be part of how a producer or venue meets those obligations. It is not, by itself, a determination that you have met them, and it does not automatically satisfy any specific standard.
Do not put a compliance claim in a client proposal on the strength of this page. Have it evaluated against the venue's accessibility plan by someone qualified to do so.
Commercial
Expanding reach
When audio becomes a stream, the walls of the room no longer define the size of the audience.
Paid remote access
Sell a listening pass to people who could not travel, at a price that has nothing to do with your room block. A sold-out general session has no upper bound.
Overflow without overflow AV
The second room does not need its own system, its own tech, or its own line item. Attendees in it are simply listeners.
Sponsored channels
A track or a stage can be presented by a sponsor, with the read delivered in audio rather than on a slide nobody looks at.
Multi-track without multi-rig
Concurrent breakout rooms that attendees can easily move between, with an MC able to address all rooms simultaneously.
Fewer trucked receivers
Assistive and interpretation receivers are inventory with a real per-event cost. Some of it stops being necessary.
Language reach
A regional event becomes attendable by people who would not have registered for an English-only programme.
Earbuds at the door
Some share of the room arrives without a pair, and they are standing in your registration line already. A branded earbud is a low-cost item with an ordinary retail margin — sold rather than issued, and nothing comes back at the end of the day.
Power and charge packs
A phone streaming a three-hour general session spends battery. That is an objection at the front of the event and a sale at the back of it: charge packs, a charging wall, or both under a sponsor’s name.
This is not receiver inventory by another name
Keep the distinction clear when you write the proposal. Receivers are capital: bought, charged, sanitised, recovered, and replaced when they walk out the door — a cost attached to every head in the room whether that head uses one or not. Earbuds and charge packs are consumables sold at a margin to the fraction of the audience that wants one, with nothing to count back in. One is an inventory line. The other is a revenue line. Do not let a client read them as the same thing.
At most venues this belongs with whoever runs merchandise or concessions rather than with AV. It is retail, and it staffs like retail.
Try it in one room
Try it in one room.
Take a matrix send off a console at your next event, run it alongside the PA, and see how the back of the room reacts. Nothing about the existing design has to change.
Starting an account is free, and a trial can take free channels live. Selling per-listener passes needs a paid plan — a trial can build and save a paid event but cannot collect payment. Once the trial ends, a plan is needed to take anything live, free channels included. Worth knowing before you put it in a client proposal.