LV2proc is a simple command line effect processor using LV2 plugins.

License: GPL 3.

Latest version: 0.5.1 (.tar.gz sources, .tar.bz2 sources).

Previous versions: 0.5.0 (.tar.gz sources, .tar.bz2 sources), 0.4.0 (.tar.gz sources, .tar.bz2 sources), 0.3.0 (.tar.gz sources, .tar.bz2 sources).

Runtime dependencies

Build-time dependencies



lv2proc [ options ] -i input -o output plugin
lv2proc -h|--help
lv2proc --version


lv2proc generates an output sound file by applying a LV2 effect plugin to an input sound file.


-h, --help
Print a short description of the command line options on the standard output and quit.
Print version and copyright information on the standard output and quit.
-i input
Indicates the input sound file.
-o output
Indicates the output sound file.
LV2 plugin URI.
-n frames
Number of audio frames to be processed at each cycle (default is 512).
-c port:value
Assigns value to the port identified by port symbol port. The specified port must be a control input port and value must be a floating-point number in a form that strtof(3) undestands, assuming that the "C" locale is being used.
Disables latency compensation that is generously offered to you by default.
Report some timing statistics on the standard output after sound processing.
Normalize the output file by applying the same gain factor to all channels. No fancy loudness estimation going on here, just trying to make use of the whole dynamic range of the output file format.


Used to override the list of directories where LV2 plugin bundles are looked for (as per LV2 FHS).


As usual:

$ ./configure && make && make install

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