How do I fix In Falsus audio after an update?

A player on the Steam discussion board lost all game audio after an update and fixed it by changing the in-game Audio Buffer Size in the advanced audio settings — reinstalling and verifying files had not helped. Try that first, then work through the volume mixer and output-device checks.

Does In Falsus work with Bluetooth headphones?

It can, but Bluetooth headsets that jump to the hands-free profile (for the microphone) often produce silence or mono audio. Select the Stereo output in Windows, disable the headset microphone, or switch to a wired connection.

In Falsus has sound but the screen is purple — is that related?

No — a full purple window with audio still playing is a separate rendering bug (the community calls it the 'mystery purple screen'). See the purple screen fix guide instead.

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In Falsus No Sound? How to Fix Audio Issues (Demo & Full Version)

Q: Why does In Falsus have no sound?

The most common reported cause is the game's audio buffer defaulting to a value your device can't use — especially after a demo update. Open Settings → Audio → Advanced and set Audio Buffer Size to anything except Default. If that fails, check the Windows volume mixer, your output device, and Bluetooth codec.

In Falsus has no audio or the sound cuts out after an update? First open Settings → Audio → Advanced and change Audio Buffer Size off Default — the fix reported on the Steam board. Then the full checklist.

By In Falsus Tips EditorialPublished Aug 3, 2026

Illustration for the In Falsus no sound fix guide — a pair of headphones on a desk with pink rim light and a muted speaker icon

In Falsus launches fine, the notes are falling — and there is no sound at all. The 30-second fix reported by players on the Steam discussion board: open Settings → Audio, scroll to Advanced, and change Audio Buffer Size to anything except Default. If that doesn't restore audio, work through the checklist below, fastest checks first.

Fix 1: Change the audio buffer size (the community-reported fix)

A player on the Steam discussion board lost all game audio after a demo update — reinstalling and verifying files didn't help. Their fix, in their own words: go into the audio settings, scroll all the way to Advanced, and change the Audio Buffer Size to anything except Default.

This is a community-reported fix, not an official lowiro statement — but it matches the most common no-sound reports, it takes 30 seconds, and it's reversible. Start here.

Fix 2: Check the Windows volume mixer

Windows keeps a separate volume slider per app, and In Falsus may simply be muted there:

Right-click the speaker icon in the taskbar → Open volume mixer
Find In Falsus (launch the game first if it's not listed)
Raise its slider and unmute it

Fix 3: Confirm the output device and sample rate

If Windows switched your default output — a monitor with speakers, a VR headset, an HDMI device — the game's audio goes somewhere you can't hear:

Taskbar speaker icon → choose your actual speakers/headphones as output
In Sound settings → device properties, set the format to a standard 24-bit, 48000 Hz. Exotic sample rates break some games' audio engines.
Disable output devices you never use so Windows stops hopping between them

Fix 4: Bluetooth headphones — the codec trap

Bluetooth headsets have two profiles: Stereo (A2DP) for music and Hands-Free (HFP) for calls. The moment anything opens the microphone, Windows drops to hands-free — and many games go silent or mono as a result.

In Windows sound settings, explicitly pick the Stereo output, not "Hands-Free"
Or disable the headset's microphone device so the hands-free profile never activates
Fastest test: plug in a wired pair. If wired works, the problem is the Bluetooth profile, not the game

Fix 5: Verify the game files on Steam

A corrupted audio bank produces exactly this symptom:

Right-click In Falsus Demo in your Steam library
Properties → Installed Files → Verify integrity of game files
Relaunch after Steam re-downloads anything broken

Note: in the buffer-size case above, verification did not help — which is why it's step 5, not step 1.

Fix 6: Audio drivers and the Windows Audio service

If no app has sound, the problem is below the game entirely:

Update your audio driver from the motherboard/laptop manufacturer's site (Realtek, etc.)
Press Win + R, run services.msc, and restart the Windows Audio service
Or run Settings → System → Troubleshoot → Playing Audio

Still silent?

Sound missing only in In Falsus = game-side. Sound missing everywhere = Windows/driver-side. Split your debugging along that line.
On Steam Deck/Linux, audio quirks track with Proton versions — see the Steam Deck guide for working configurations.
Report it on the Steam discussion board with your audio device and driver version. lowiro ships demo patches regularly (the demo is already on v0.3.x), and device-specific reports are what get fixes shipped.
Screen purple but music still playing? That's a different bug — see the purple screen fix. Black screen with music? Start with black screen fixes.

FAQ

Why does In Falsus have no sound? Most reported cases trace back to the default audio buffer setting after an update. Change it in Settings → Audio → Advanced. After that: volume mixer, output device, Bluetooth profile.

How do I fix the audio after an update? Change the in-game Audio Buffer Size off Default — that's the exact fix a Steam user posted after an update killed their audio. Reinstalling hadn't helped them.

Do Bluetooth headphones work? Yes, but force the Stereo profile or disable the headset mic — hands-free mode is a classic cause of game silence.

Once the sound is back, the real game starts: controls guide, beginner tips, and rhythm strategy. Keys not registering mid-song? Read keys not working fixes. Game won't launch at all? See demo won't launch.

In Falsus © lowiro. This is an unofficial community guide based on the public demo. Fixes marked as community-reported come from Steam discussion posts, not from lowiro.