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The sound card in Somos InControl lets you tune every Sonos® room. On Home Theater it sits below the TV presets. On Music, the three preset pills come before the sound card. Tap the row or a sound button on the player to open or close it in place. Controls follow the room’s hardware.

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Sliders

A lone slider stays centered in wide layouts. Sliders update the speaker live as you drag. If a slider snaps back, the speaker rejected the value — usually because Trueplay is active for that control, the room is in a group, or the connection dropped for a moment. Rooms with surrounds also get a Surrounds on/off switch under the Surround slider, and rooms with a Sub get a Subwoofer on/off switch that silences the Sub without unbonding it.
The Living Room page on iPhone, Arc Ultra on TV in Dolby Atmos, scrolled down: Surround +3, Speech Boost Medium, Height +1, Crossover 86 Hz, the Subwoofer switch on, Sub phase with Normal and Reversed and the note Set by Trueplay while Trueplay is on, and the Surrounds and Loudness switches.

A soundbar room on iPhone, scrolled to the sound sliders: Surround (red), Speech Boost as a level, Height, Crossover in hertz, then the Subwoofer switch and Sub phase. Briefly hold a slider before you drag it, so a scroll through the page doesn't change the sound.

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Sub phase

Every room with a Sub — a Sub, a Sub Mini, any generation — has a Sub phase switch under the Subwoofer on/off switch, with two positions: Normal and Reversed. It is the same setting the Sonos® app calls Sub Phase. Flip it and the bass changes at once; if the Sub sounds thin or hollow from where you sit, try the other position and keep the one that sounds fuller. Two things to know:
  • While Trueplay is on for the room, the switch is greyed out with the note Set by Trueplay while Trueplay is on — Trueplay chooses the phase for you. Turn Trueplay off and the switch comes back.
  • The switch waits for the speaker to report its phase before it can be used, so it may spin for a moment when the page opens. If the speaker refuses a change, the switch goes back and a message says which phase the speaker kept.
Sub phase is not part of a preset.
Two Living Room pages side by side. Both show Volume, Bass, Treble and Subwoofer sliders, a Subwoofer switch and a Sub phase row with Normal and Reversed. On the left the row is greyed out with the note Set by Trueplay while Trueplay is on; on the right it is active with Normal selected.

Sub phase under the Subwoofer switch. Left: greyed out while Trueplay is on. Right: Trueplay off, set to Normal.

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Toggles

Loudness

Adds bass and treble at low listening volumes so quiet music still sounds full. Available in every room that reports it.

Night Sound

Soundbar rooms only. Tames loud peaks for late-night viewing. See Home Theater.

Speech Boost

Soundbar rooms only. Lifts dialogue above effects and music. On the Arc Ultra it is the level slider above instead of a tile.

Trueplay

Shows the room’s calibration state and lets you switch it on or off once the room has been tuned — see below.

Status Light

Turns the speaker’s white status LED on or off. Applies to every unit in the room, so one flip covers a stereo pair or a whole home theater.

Touch Controls

Enables or locks the touch/capacitive controls on the speakers in the room — handy with small children or curious cats.
The switch tiles line up in even rows and share a height that grows to fit larger text. On iPhone they sit two to a row, and an odd one sits small and centered on its own row. On iPad they sit three to a row upright and four on its side, with a short last row centered. On the Music page, the switches sit at the bottom of the open sound card. Status Light and Touch Controls are here too. Rooms with surrounds also have a Surrounds on/off switch here, shared with Home Theater. TV Dialog Sync, TV Autoplay and Ungroup on Autoplay stay on Home Theater. While you scroll through Music, rows stay in place as speaker readings arrive. Any new rows appear after scrolling stops. A control stays unavailable until its reading is ready. On Home Theater, a grouped soundbar also has a Group Audio Delay stepper (see Grouping Rooms).
The Living Room page on iPhone scrolled to the switch tiles: Surrounds on, Loudness on, Night Sound off, Trueplay on, Status Light on, Touch Controls on, TV Autoplay on and Ungroup on Autoplay on, under the Subwoofer switch and Sub phase row.

The switch tiles on a soundbar room: Surrounds, Loudness, Night Sound, Trueplay, Status Light, Touch Controls, TV Autoplay and Ungroup on Autoplay. The Surrounds tile turns the rear speakers on or off; their level is the separate Surround slider.

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Trueplay

Trueplay is Sonos®‘s room-calibration feature. When it’s active, the speaker’s sound is tuned to the acoustic properties of the room it’s in. The Trueplay tile in the toggle grid shows one of three states:
  • Tuned — the room has been calibrated. The tile is an on/off switch, and flipping it applies immediately.
  • Tune in Sonos app — the speaker supports Trueplay but hasn’t been calibrated yet. Tapping opens the official Sonos® app, which is the only place the microphone-based calibration can run.
  • Unavailable / Why not?: Trueplay is blocked. Tap Why not? for the reason when it is offered. Separate front speakers prevent tuning until you remove them. Some products, including Port, Connect and Roam SL, do not support room calibration.
The Trueplay title and explanation wrap inside the card at larger text sizes.
Bonding separate front speakers to a soundbar (something only Somos InControl offers) makes Trueplay unavailable for that room. This is a Sonos® firmware restriction that the app cannot work around. You can keep the wider soundstage, or remove the fronts to get Trueplay back — the app warns you about this trade-off before it bonds fronts.
The Trueplay tile, close up, with its switch turned on.

The Trueplay tile shows the room's Trueplay state. Where a tuning profile exists it is an on/off switch; otherwise the tile says tuning has to be done in the Sonos app.

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Sound settings follow the source

On a soundbar, Somos InControl keeps a separate set of sound values for TV and for Music. Switch the source with the pills at the top of the room page and the sliders move to the values you last used for that source; the TV presets on the room page and the music presets on the music page are separate for the same reason. While Music is lit on a soundbar, the sound card leaves the room page altogether. The room page keeps its header and volume, and the music controls are on the music page. Open it there with the full or mini player’s sound button. Tap again to close it. Tap TV on the room page to bring back the TV sound card. A room with no soundbar only plays music, so its bass, treble, Sub level and Loudness live on Music. A stereo pair also has Balance in its Music sound card. Its room page still has Balance, the Sub’s on/off switch, Crossover and Sub phase, and the Trueplay, Status Light and Touch Controls switches. The Sub and surround rows are still available for rooms that have them. See TV rooms and music rooms.

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Staying in sync

Every control reads back from the speaker. A silent background resync runs about every 30 seconds so the app never drifts far from what the Sonos® app or your TV remote did, and you can pull down on the room page to force a full refresh.