---
title: "Settings - Audio"
slug: "settings-audio"
updated: 2026-02-26T07:54:45Z
published: 2026-02-26T07:54:45Z
---

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

# Settings - Audio

The **Audio** tab in Composer's Settings window provides configuration options for audio monitoring, metering, and preview functionality.

![Image](https://cdn.document360.io/94808959-fd66-406c-ab5e-4691ce952a14/Images/Documentation/image(305).png)

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## VU Meter Settings

### Enable VU-meters

Activates the VU (Volume Unit) meters throughout the application, displaying audio level indicators for audio sources and outputs.

### Default number of audio channels

Sets the default number of audio channels used when creating new audio sources or configurations.

### Peak level meter max age

Controls how long peak level indicators remain visible on the VU meters before decaying.

| Display Value | Enum Member | Internal Value |
| --- | --- | --- |
| 1 second | OneSeconds | 1 |
| 5 seconds | FiveSeconds | 5 |
| 10 seconds | TenSeconds | 10 |
| 30 seconds | ThirtySeconds | 30 |
| 60 seconds | SixtySeconds | 60 |
| 5 minutes | FiveMinutes | 300 |
| 10 minutes | TenMinutes | 600 |
| Infinite | Infinite | int.MaxValue |

### Peak level meter min value

Sets the minimum decibel (dB) value displayed on the peak level meters. Lower values provide a wider dynamic range display.

| Enum Member | Internal Value |
| --- | --- |
| db120 | -120 |
| db96 | -96 |
| db72 | -72 |
| db60 | -60 |
| db48 | -48 |
| db24 | -24 |

### Require audio device on application startup

Requires an audio device to be present and available when Composer starts.

### Use RMS VU-meters

Switches from peak metering to RMS (Root Mean Square) metering, which provides a more accurate representation of perceived loudness.

### RMS Window size (ms)

Specifies the time window (in milliseconds) used for RMS calculations. Only applies when "Use RMS VU-meters" is enabled.

| Display Value | Enum Member | Internal Value |
| --- | --- | --- |
| 100 ms | OneHundredMs | 100 |
| 200 ms | TwoHundredMs | 200 |
| 300 ms | ThreeHundredMs | 300 |
| 400 ms | FourHundredMs | 400 |
| 500 ms | FiveHundredMs | 500 |
| 600 ms | SixHundredMs | 600 |
| 1000 ms | OneThousandMs | 1000 |

### Show audio tab (deprecated)

Controls the visibility of an audio tab in the application interface. This setting is **deprecated** and may be removed in future versions.

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## Audio Preview Settings

### Audio preview

Selects the audio backend technology used for audio preview playback.

| Display Value | Enum Member | Description |
| --- | --- | --- |
| Autoselect | Auto | Automatically selects the best available backend (ASIO → WASAPI Exclusive → WASAPI Shared) |
| ASIO (requires ASIO driver) | Asio | Lowest latency; requires compatible ASIO driver |
| WASAPI Exclusive mode | WasapiExclusive | Low latency; takes exclusive control of the audio device |
| WASAPI Shared mode (default) | WasapiShared | Allows other applications to use the audio device simultaneously |

### Latency (ms, 5-2000ms)

Sets the target latency for audio preview playback. Lower values reduce delay but may cause audio glitches on slower systems.

### Buffer length (ms, 5-2000ms)

Configures the audio buffer size for preview playback. Larger buffers provide more stable output but increase latency.

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## Notes

- Some settings may require restarting Composer to take effect.