> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nomn.jp/llms.txt
> Use this file to discover all available pages before exploring further.

# Troubleshooting

> Common questions and what to check

# Troubleshooting

## ANTIVERB Outputs Silence

The footer reads **Unlicensed** or **Revoked**. ANTIVERB outputs silence until a trial or licence key is activated. See [Licensing](/antiverb/reference/licensing).

## Inserting ANTIVERB Changes Nothing

Every stage MIX starts at zero, so a fresh instance passes the source unchanged. Raise the MIX of the stage you want to hear. A checked **BYPASS** turns a stage off, and a **SOLO** on another stage bypasses every stage but that one.

## Warmth, Brightness or Presence Have No Effect

These three belong to the Source stage, so they follow the **SOURCE** tab's MIX and BYPASS. Raise the Source MIX.

## Distance or Air Absorption Have No Effect

Both act on the dry signal and on everything the reverb stages hear, at any DRY / WET. Check that the Source **BYPASS** is unchecked, since it turns them off. At the default **distance** of 1 m the level is unchanged, and the high-frequency loss from **air absorption** is small below about 5 m.

## The Densified Sound Disappears When Space Is Raised

On a stereo output the Space MIX crossfades from everything before it to the tail, so at 100 % only the tail remains. Lower values keep both. See [Signal Chain](/antiverb/interface/signal-chain).

## The Host Reports CPU Overloads

The CPU meter in the footer shows the instance's load. The heaviest settings are **depth** at max on DENSIFICATION, a high **count**, **density** at Maximum on SPACE and a high output channel count. Moving depth off max, lowering count, or setting density to High or Medium lowers the load.

## The SPATIAL Tab Has No Effect

On a stereo output the spatial routing is off, and ANTIVERB runs as a stereo processor. Insert it on a track or bus with more than two output channels, and check that **BYPASS** in the SPATIAL ROUTING header is unchecked.

## Elevation and Tilt Have No Effect

Elevation and **tilt (z)** need height speakers. On a flat rig (stereo, quad, 5.1, 7.1 or a ring) sources are panned by azimuth only.

## The LFE Speaker Plays the Reverb

In the 5.1, 7.1, Atmos 7.1.4 and Atmos 9.1.6 layouts output 4 is a **Sub**, and on any rig an output the host's bus format names as LFE resolves to **Sub**; a Sub gets no panned reverb. Panned reverb reaches the LFE speaker in two cases: the rig is the seeded ring or a Custom layout and the bus names no LFE, or its role is set by hand to **Full** or **Small**. In either case set its role to **Sub** under OUTPUT SPEAKERS (EXPERT view). See [Speaker Layout](/antiverb/interface/speaker-layout#output-speakers).

## The Speaker Layout Shows a Ring of Speakers

On a channel count it has not seen, ANTIVERB seeds an even ring. Choose the matching layout from the **LAYOUT** menu.

## Loading a Preset Did Not Change the Speakers

Presets never carry the speaker rig, the output roles and trims, the bass crossover, the sub level or the listener position. These describe your room and stay as you set them.

## ANTIVERB Does Not Appear in the Host

Restart the host after installing. On macOS, check that the bundles are in `~/Library/Audio/Plug-Ins/VST3/` and `~/Library/Audio/Plug-Ins/Components/`. On Windows, check that `ANTIVERB.vst3` is in `C:\Program Files\Common Files\VST3\`. For Audio Units, the install script clears the Audio Unit cache; after a manual install, the host's plug-in rescan picks the plug-in up.

## Timing Against Other Tracks

ANTIVERB reports its latency to the host, and the figure changes with the resonance smoother, Densification on a stereo output and time alignment and the Sub ceiling on a multichannel output. ANTIVERB delays its own dry signal to match, and hosts with plug-in delay compensation keep the track aligned with the others.


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