Current release. FFB-Bridge v1.2.0 is live. These docs track the current app described by the release manifest. If a section reads stale, flag it via the feedback form.

Voice Tune

Voice Tune lets you adjust the B draft with push-to-talk voice commands or typed commands, in plain language. Speech recognition runs locally on your machine after a one-time model download — audio is never uploaded for recognition.

Voice Tune is opt-in. Out of the box:

  • Voice Tune is disabled.
  • The wake-phrase requirement is enabled.
  • Speech-back is disabled.
  • Keyboard push-to-talk defaults to F9.
  • No joystick push-to-talk button is assigned.
Privacy model
  • Recognition runs locally using the downloaded Whisper model. Audio is not uploaded for recognition.
  • Raw microphone buffers are never stored in feedback reports.
  • Failed-phrase logs store text diagnostics, not audio.
  • Report phrase sends only safe text context and diagnostics — never recordings.

The model manifest and model file download from FFB-Bridge once. After that, recognition uses the local file.

First-time setup

  1. Open Voice Tune.
  2. Turn the feature on.
  3. Download the default recognition model if prompted. The default is Whisper base.en.
  4. Select or refresh your microphone input device.
  5. Confirm the mic-level meter moves when you speak.
  6. Keep the default keyboard push-to-talk, or bind a joystick button.
  7. Try a typed command first, then a push-to-talk command.

Push-to-talk

Voice Tune listens only while push-to-talk is held, or while a typed command is being run — it is not always-listening. Supported input styles:

  • Keyboard push-to-talk, default F9.
  • Joystick push-to-talk, when you bind a button.
  • Typed command input, handy for testing wording without a microphone.

Typed commands don't require the wake phrase. Microphone commands normally do.

Wake phrases

By default, microphone commands must start with one of:

  • Bridge
  • Tune
  • FFB

For example:

  • Bridge reduce runway rumble
  • Tune make the stick heavier
  • FFB set engine rumble to 20 percent

A phrase without a wake word is ignored, with a missing-wake-phrase status. This keeps ordinary cockpit chatter from changing your tuning.

Safety stops bypass the wake phrase

Stop phrases work without a wake word so you can kill forces fast — for example panic, stop forces, stop all forces, forces off, or force feedback off.

What the page shows

After each command, the Voice Tune page shows what the recognizer heard, what the app understood, the result message, whether a change was applied to B, recognition/speech/NLU status, and recent failed phrases. During the beta this is how you (and support) tell whether a problem was microphone capture, recognition, interpretation, or tuning application.

FFB-Bridge Pro Voice Tune page showing a completed command applied to the B draft FFB-Bridge Pro Voice Tune page showing a completed command applied to the B draft
Figure 1. A completed command: the page shows what was heard, what the app understood, and the result — here “reduce runway rumble” applied to the B draft (85% → 68%), with the live mic meter and push-to-talk binding.

How to phrase a command

Most commands follow one shape: wake word + action + control and, optionally, an amount. For example Bridge · reduce · runway rumble · by 20 percent.

Wording is flexible

The commands below are literal English — recognition runs the English-only base model, so the tables are not translated. You don't have to be exact: each control answers to many synonyms (all listed), and the verbs and amounts mix freely. If a phrase misses, try the bold name or type it in the command box.

Try these

Hold push-to-talk and say any of these. They cover most of what Voice Tune can do — adjust a force, fix a feel, audition a change, ask a question, or stop everything.

  • “Bridge make the stick heavier” — firm up the centring
  • “Bridge ease off the runway rumble” — calm a ground vibration
  • “FFB set engine rumble to 15 percent” — dial a control to an exact value
  • “Tune disable nosewheel shimmy” — switch one effect off
  • “Bridge increase force gain a lot” — a big relative change
  • “Bridge bump up the stall buffet” — make a warning easier to feel
  • “Bridge increase elevator strength” — a trim change (it asks you to confirm)
  • “Bridge too much vibration” — one phrase fixes a whole group
  • “Bridge soft preset” — a gentler whole-stick feel
  • “Bridge what makes it shake” — ask which force is dominant
  • “Bridge what changed” — review your recent voice edits
  • “Bridge switch to B”“Bridge keep B” — audition the draft, then commit it
  • “Bridge undo that” — step back the last change
  • “Bridge help” — hear what you can say
  • “stop forces” — emergency stop — works even without a wake word

The wake word can be Bridge, Tune, or FFB — they're interchangeable. The full list of every control and command is in the tables below.

Adjustable controls

Every control Voice Tune can change is below, grouped like the Tuning page. Say the bold name (or any listed phrasing) together with a verb from the next section — e.g. turn down engine rumble, set cruise reference to 250 knots, or disable nosewheel shimmy.

ControlWhat it changesSay it like
Overall
Master forceEvery force at once — the master volume.master, master gain, overall force, overall strength, global force, all forces, everything
Stick feel & centring
Spring strengthHow firmly the stick is pulled back to centre.spring, spring force, centering force / strength / spring, center force / strength, stick force / weight / strength / stiffness, yoke force / weight
Spring deadbandFree play around centre before the spring bites.spring dead zone, centering deadband, center deadband / dead zone, free play, freeplay, stick slack, yoke slack
Low-speed spring floorMinimum centring at low speed so taxi isn't limp.low speed spring, spring floor, ground spring floor, taxi spring, parking spring, spring at low speed
Deadband low-speed wideningHow much the deadband widens slow to kill ramp jitter.low speed deadband / widening, deadband widening, deadband at low speed, ground / taxi / ramp deadband
G-load gainExtra stiffness under G in turns and pull-ups.g load, g-load, g force, g force gain, g loading, g gain, gload gain
Control-edge triggerHow close to the stops the edge force begins.edge trigger, control edge start, edge start, edge of travel trigger, stick / travel edge trigger
Control-edge gainStrength of the firming force near full deflection.edge gain, edge force, control edge force, edge of travel force, stick / travel edge force
Max output forceHard ceiling on pitch/roll force before clipping.maximum output force, output force, force limit, output limit, max / maximum force, force / output ceiling
Airspeed load
Force gainHow much the stick loads up as airspeed builds.airspeed / speed force, force at speed, airspeed / speed load, dynamic pressure force, stronger / weaker at speed, airspeed effect, speed loading
Cruise reference (kt)The airspeed where the load hits its designed strength.cruise speed reference, cruise ref, reference speed, speed reference, cruise speed, reference knots
Trim — these ask to confirm
Elevator strengthHow much pitch trim eases the held force and shifts centre.elevator trim, elevator / pitch trim authority, pitch trim, trim authority, trim force, elevator / pitch trim strength
Aileron strengthThe same for roll trim.aileron trim, aileron / roll trim authority, roll trim, aileron / roll trim strength
Stick-alive & dynamic
Rotation kickSharp kick at stall break / spin entry.rotation kick gain, rotation snap, snap kick, snap force, stall break kick, spin entry kick
Surface followBackdrive and flutter from airflow over the controls.surface follow gain, surface backdrive, control surface follow / backdrive, airflow surface force, surface force
Sideslip couplingA roll cue when you're out of coordination.sideslip coupling gain, sideslip force, slip coupling, slip force, coordination cue / force, rudder slip cue
Rate damping — pitchOpposes pitch rate so inputs settle instead of ringing.pitch rate damping, pitch damping, pitch gain, rate damping pitch, pitch damping gain
Rate damping — rollThe same on the roll axis.roll rate damping, roll damping, roll gain, rate damping roll, roll damping gain
Stick drop forceForward stick weight when parked or slow.stick drop, drop force, parked stick drop, yoke drop, forward pull, stick forward pull
Stick drop fade (kt)The airspeed by which stick-drop fades out.stick drop fade speed, fade airspeed, fade speed, stick drop fade, drop fade airspeed / speed
Propwash pitchPower-on pitch bias from propeller wash.prop wash pitch, propwash, prop wash, power pitch, power on pitch, propwash / prop wash force
Ground & rollout
Runway rumbleWheel rumble rolling on the ground.taxi / ground / wheel rumble, runway / taxi / ground vibration, runway / taxi bumps, runway / taxi effect, taxi / ground / runway chatter, pavement
Brake shudderVibration under braking.brake vibration, braking shudder, braking vibration
Gear bumpsBumps felt through the gear on rollout.gear bump, landing gear bumps, gear road bumps
Nosewheel shimmyNosewheel shimmy vibration.nose wheel shimmy, nosewheel / nose wheel vibration, shimmy
Ground accelPitch surge under takeoff-roll acceleration and braking.ground / taxi acceleration, takeoff roll surge, takeoff surge, ground / accel / acceleration pitch, rollout acceleration
Reverse rumbleRumble in reverse thrust / beta range.reverse thrust rumble, reverse / reverser vibration, reverser rumble, beta / beta range rumble
Touchdown thumpThe thump at touchdown.touchdown bump, landing thump / bump / jolt / hit, touchdown hit / effect
Buffets & warnings
Stall buffetAirframe shake approaching the stall.stall vibration, stall shake, stall warning
Stick shakerStrength of the stall stick-shaker.shaker amplitude, stick / stall shaker amplitude, stall shaker strength, shaker strength, shaker buzz, shaker
TurbulenceThe rough-air shake overlay.air turbulence, rough air, gust shake / vibration, turbulence effect, air bumps
Overspeed buffetThe VNE overspeed warning buffet.overspeed vibration, overspeed buzz, speed warning buffet
Mach buffetHigh-Mach buffet.mach vibration, mach buzz, high mach buffet
Spoiler buffetBuffet from deployed spoilers / speedbrakes.spoiler buff, spoiler vibration, speedbrake / speed brake buffet, speedbrake / speed brake buff
Flap buffetBuffet with the flaps out.flap vibration, flap shake, flaps buffet / vibration
Gear buffetBuffet with the gear down.gear vibration, landing gear buffet, gear drag buffet
Engine
Engine rumbleContinuous engine vibration.engine vibration, motor rumble / vibration, engine shake, engine buzz, engine effect
Mechanical one-shots
Gear deployShudder as the gear extends or retracts.gear deployment / extension / retract / retraction / movement / cycle, landing gear deploy / movement
Flap stepA bump at each flap detent.flap step bump / shudder, flap detent, flap detent bump, flap movement / notch, flap notch bump, flaps step
Aero drag (pitch trim changes)
Flap dragSustained pitch force from flap drag.flaps drag, flap pitch force, flap pitch, flap load, flap pressure, flap sustained force
Spoiler dragPitch force from spoilers / speedbrakes.spoilers drag, speedbrake / speed brake drag, spoiler pitch force, speedbrake pitch, spoiler load
Gear dragPitch force from gear drag.landing gear drag, gear pitch force, gear pitch, gear down force / drag, gear load
Autopilot (off by default)
Autopilot follow authorityHow far the autopilot nudges the centre.ap follow authority, autopilot / ap authority, autopilot / ap movement, autopilot follow movement
Autopilot follow strengthFirmness of the autopilot follow cue.ap follow strength, autopilot / ap strength, autopilot / ap spring, autopilot follow spring
Watchdog (advanced timing)
Watchdog stale threshold (s)How long stale telemetry waits before forces fade.stale threshold, watchdog stale time, stale time / seconds, watchdog / telemetry timeout
Watchdog fade window (ms)How quickly forces fade once telemetry goes stale.fade window, watchdog fade, fade milliseconds, stale fade / window, fade time

Verbs and amounts

Pair any control above with one of these actions. Without an amount, a change is a medium step.

ActionSay it likeExample
Turn downreduce, lower, less, weaker, lighter, soften, softer, calmer, calm down, turn down, decrease, back off, ease off, tone down, dial down, pull back, take the edge offBridge ease off the turbulence
Turn upincrease, raise, more, stronger, heavier, stiffer, turn up, bring up, bump up, nudge up, boost, add, easier to noticeTune bump up the stall buffet
Set to a valueset, make, put, change, bring, dial — then a numberFFB set engine rumble to 15 percent
Enableturn on, back on, enable, restore, bring back, unmuteBridge turn runway rumble back on
Disableturn off, shut off, disable, mute, kill, zero, zero outBridge disable nosewheel shimmy

Set the size of a relative change with an amount word, or be exact with a number:

AmountSay it like
A touchtiny, barely, a touch
A littleslightly, a little, a bit, small
A medium step (default)say nothing — the default
A lotmuch, a lot, significantly, large
An exact amountby 20 percent, by 5 points, by half, by a quarter, to 250 knots, to 40 percent

One-phrase fixes

Describe the problem in plain language and Voice Tune adjusts the related group at once. These ask to confirm first.

Say it likeWhat it does
too harsh · calm it down · make it less harshSoftens centring, airspeed load, the ceiling, and the major vibration cues.
too much vibration · reduce vibration · less vibration · calm vibrationTurns down ground, buffet, turbulence, and engine vibration.
trim feels wrong · fix trim · trim is wrongRestores trim relief and trim authority toward expected behaviour.
too weak · not strong enoughRaises the main stick forces and felt effect gains.
taxi rumble too strong · taxi rumble is too strongCalms ground-roll rumble, brake shudder, bumps, shimmy, and taxi acceleration.

Whole-feel presets

Say it likeResult
soft preset · apply soft · make it softA gentle, light overall feel.
strong preset · apply strongA firm, heavy overall feel.
balanced preset · apply balancedA neutral middle-ground feel.
more realistic · make it realistic · fix this · fix the feelApplies the balanced preset (asks to confirm).

Profiles and A/B

Spoken changes land in the B draft so you can audition before committing. Saving, keeping, discarding, and auditioning ask to confirm.

Say it likeWhat it does
switch to b · listen to b · use bFeel the B draft.
switch to a · listen to a · use aFeel the saved A baseline.
keep b · keep draft · accept bPromote the B draft to A. Confirms.
discard b · discard draft · throw away bDrop the B draft. Confirms.
save profile · save this profile · save my changesSave the current feel. Confirms.
save this as <name> · save as <name>Save under a new name. Confirms.
try / load / audition <profile>Audition a profile from the library as a draft. Confirms.
revert changes · discard changes · reset to profileThrow away unsaved edits.
undo · undo that · undo last · undo voiceStep back the last voice change (up to 10).
yes · confirm · do it · go ahead / cancel · never mind · forget itAnswer a pending confirmation.

Ask about the feel

Say it likeAnswer
what makes it shake · why is it rough · what forces am i feeling · what is causing thisNames the dominant active force and offers to reduce it.
what changed · what did you changeLists the recent voice changes.
statusReports the current state.
what profile is loaded · which profile is activeNames the active profile.
help · what can i say · voice helpShows what you can say.

Safety — these bypass the wake phrase

Say it likeWhat it does
panic · stop forces · stop all forces · forces off · force feedback off · stop everything · disarmImmediately stops all force output — no wake word, no confirmation.
arm force feedback · arm forces · turn on force feedback · forces onArms the stick. Asks to confirm.

What voice won't do

These are deliberately UI-only — Voice Tune refuses them so it stays focused on reversible tuning and explicit safety stops.

If you ask to…Voice Tune says
delete or rename a profileNot available as an in-flight voice action.
change hardware modeHardware setup must be changed in the UI.
change a voice binding (push-to-talk)Bindings must be changed in the UI.
download a modelModel downloads must be started from the UI.
activate / deactivate a licenceLicensing must be handled in the UI.
export diagnostics / send a support bundleDiagnostics must be exported from the UI.
change the storage pathStorage paths must be changed outside in-flight voice.
disable safety, send raw force, or max everythingBlocked by safety limits.

Speech-back

Speech-back is optional and off by default. When enabled, Voice Tune speaks concise replies using your operating system's speech voice. You can toggle spoken replies, test the output, and set volume and rate. With speech-back off, Voice Tune still shows the reply text in the app.

Failed phrases, and reporting

Voice Tune logs recent unsuccessful phrase text — timestamp, source (typed or microphone), heard text, understood text, the message, an error code, and recognition status — to help improve the command parser. It never stores audio, and you can copy, clear, or report entries at any time.

  • Use Report this when the Voice Tune feature itself misbehaves.
  • Use Report phrase when the app heard you but interpreted it poorly, rejected it unexpectedly, or applied the wrong change.

A useful phrase report says what you said, what the app heard, what you wanted, whether it was typed or spoken, and the aircraft/sim context if relevant. Voice Tune reports are text-only for speech content — no recordings are uploaded.

Troubleshooting

Says the model is missing

  • Open Voice Tune and select Download model.
  • Wait for the download and hash verification to finish.
  • Retry once the status shows the model is ready.

Doesn't hear anything

  • Confirm Voice Tune is enabled and a microphone is selected.
  • Watch the mic-level meter; refresh capture devices if needed.
  • Check Windows microphone privacy permissions.
  • Try a typed command to separate parsing from microphone capture.

Ignores my command

  • Start microphone commands with Bridge, Tune, or FFB.
  • Hold push-to-talk until the phrase is complete.
  • Try a shorter phrase, or test the wording in the typed box.
  • Use Report phrase for useful failures.

Speech-back is silent

  • Confirm speech-back is enabled and use the test button.
  • Check volume and rate, and confirm Windows has a usable speech voice installed.
  • Remember Voice Tune still works with spoken replies off.