muxvoxMeeting-room audio, without the meeting-room hardware.
The laptop at the end of the table can’t hear everyone. The phones in the room can — as one participant.
Put a phone near each person and join the call from one Mac. Open Muxvox on the phones, pick Muxvox as the microphone in Zoom, Meet or Teams, and everyone gets a mic close to them — without adding six extra participants to the meeting. Conference microphones cost hundreds to thousands; the phones are already on the table.
Free for up to two phones · Works with Google Meet, Zoom, Teams and any app that picks an audio device
Two apps
One app on the Mac, one on each phone
The Mac joins the meeting and does the mixing. The phones are the microphones — and, if you want, the earpieces.
How it works
How a meeting actually starts
Tuesday, 9:58. Six people in the room, two remote. The Mac joins the call. Everyone drops their phone on the table, opens Muxvox, taps the room's name. The host approves them — four green dots — and by 10:00 the far end can hear the quiet voice at the end of the table. That's the whole setup, and it goes like this:
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Install Muxvox Desktop
The organizer installs the Mac app. The virtual audio device installs itself — one click, no separate drivers.
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Invite the room
Start a session and share its name. Anyone on the same Wi-Fi can see it — no accounts, no pairing codes.
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Phones join the session
Participants install Muxvox from the App Store or Google Play and join. The organizer approves each phone once.
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The desktop mixes and merges
Every phone becomes a microphone in one balanced mix, and the room speaker carries the far end.
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Everyone talks and hears better
Pick Muxvox in Meet, Zoom or Teams. The whole room is one clear participant.
Built for real rooms
One laptop, many voices
A conference room has one machine in the call and six people around it. Muxvox gives every voice its own microphone — the one already in their pocket.
One participant, many microphones
Connected phones are mixed into a single virtual audio device. The meeting app sees the desktop as one participant — never a grid of extra tiles.
Rooms, without the howling
Phones declared to be in the same room are kept out of each other's mix, so several phones near one loudspeaker don't feed back.
A room speaker
Play the far end out of a real output — the conference screen, or the Mac's own speakers — so the whole room hears the conversation together.
Check the room
One chirp from the room speaker, and a report of which phones heard it. Catch a muted or out-of-range phone before the meeting, not during it.
Encrypted, and local
Audio travels directly between your phones and your Mac over your own Wi-Fi, encrypted with DTLS. Nothing is routed through a cloud server.
Meeting notesbeta
Every phone is its own microphone, so the transcript knows who said what — by name. Decisions and action items are summarized, and it all happens on your Mac: no audio or text ever leaves it. English, German, French, Spanish, Italian and Portuguese are built in on macOS 26; Dutch and ~99 more via the optional Whisper engine. Part of Team.
Engineered for low latency
Built from the ground up for live conversation — the same audio technology voice calls use, tuned for one room. We publish a measured latency figure only once our own tests say we can stand behind it.
Why this exists
A note from the person building it
Hi — I’m Bart van den Berg, and I build Muxvox in the Netherlands. The idea came from a real meeting at Chargee, where our team had grown to about 25 people fast — too fast to have built the professional conference room. One session had fifteen of us on site and ten remote, and Google Meet simply couldn’t pick up the room. We tried a Jabra speaker. We tried a Logitech webcam with built-in audio focus. The remote side still lost half the conversation.
Somewhere in that meeting it clicked: everyone at the table already carries the complete solution in their pocket. A smartphone has a good microphone, a speaker, and Wi-Fi — it just needed the software to act like part of a conference system instead of a phone. That’s Muxvox.
I test it in my own meetings, with my own phones, on ordinary office Wi-Fi. It’s early access — some of it is polished, some of it is honest work in progress, and the changelog doesn’t hide which is which. If you try it, I’d genuinely like to hear what worked and what didn’t: hello@muxvox.io reaches me, not a ticket queue.
Worth knowing
Before you try it
- Your Wi-Fi matters. Phones and the Mac must be able to see each other on the network. Home and most office networks are fine; guest networks often block device-to-device traffic — the FAQ covers the workarounds, including connecting by address.
- Mac first. Muxvox Desktop needs macOS 13 or later (Apple silicon or Intel). Windows is on the roadmap, honestly not started.
- Phones spend battery. A live microphone is real work. A one-hour meeting is no problem; for all-day sessions, plug the phones in.
- It’s early access. The core audio path is solid and tested daily, but you will find rough edges. We publish no latency figure yet — not because it’s bad, but because we won’t quote a number we haven’t measured properly.
Set up your meeting room this afternoon
Rooms like yours usually mean a conference system costing hundreds to thousands, installed and cabled. Muxvox gives a room of up to 16 people individual microphones for $140 a year — on the Mac and phones you already have. Muxvox Desktop is a free download (Personal covers two phones forever), and Muxvox for the phones is free on the App Store and Google Play.
Questions? Email Bart, the person building it.
