---
name: "applyplugin"
section: "1"
platform: "linux"
package: "ladspa-sdk"
version: "1.17-1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/applyplugin"
---

# applyplugin(1)

apply LADSPA plugin to an audio file

## NAME

applyplugin - apply LADSPA plugin to an audio file

## SYNOPSIS

**applyplugin \[-s\[***seconds***\]\] \<***input wave file***\> \<***output wave file***\> \<***LADSPA plugin file name***\> \<***plugin label***\> \<***Control1***\> \<***Control2***\> ... \[\<***LADSPA plugin file name***\> \<***plugin label***\> \<***Control1***\> \<***Control2***\> ... \] ...**

## DESCRIPTION

**applyplugin** applies a series of LADSPA plugins to an audio data source to create a destination audio file.

## OPTIONS

- **-s\[***seconds***\]**

  Add seconds of silence after end of input file.

## FILES

- **/usr/lib/ladspa/\*.so**

  LADSPA plugin files are installed here by default.

## ENVIRONMENT

- **LADSPA\_PATH**

  should be set to something like "/usr/local/lib/ladspa:/usr/lib/ladspa:" for plugins to be found at all.

## BUGS

Requires environmental variable to work properly.

## CONFORMING TO

**LADSPA** standard, by  **linux-audio-dev** mailing list members.

## AUTHOR

ladspa-sdk was written by Richard Furse (richard@muse.demon.co.uk). This manpage was written by Junichi Uekawa (dancer@debian.org).

## SEE ALSO

[**listplugins**(1)](/listplugins/1.md), [**analyseplugin**(1)](/analyseplugin/1.md)