LADSPA plugins

LAST UPDATE: 27 SEPTEMBER 2024

After downloading and extracting the files, please
open the README file and USAGE NOTES
LADSPA PLUGINS are implemented through a LADSPA HOST, many of
which are free audio software projects.
A list of some of these progams can be found here:
http://wiki.linuxaudio.org/apps/categories/ladspa



RIIR_AP1 and RIIR_AP2: first and second order reverse-IIR allpass filters for performing phase and group delay equalization.
wget http://audio.claub.net/software/LADSPA/RIIR_AP1AP2.tar
or Click here to download the reverse-IIR AP filters
ACDf: now in version 4, ACDf can implement all first and second order IIR filters and EQ. Used for creating loudspeaker crossovers via software.
wget http://audio.claub.net/software/LADSPA/ACDf_v4.1.tar
or Click here to download ACDf
OnOffDelay: toggle on/off GPIOs when the audio signal exceeds a threshold level and fade audio in when turning on. Lets you control external equipment like LEDs, turn power supplies on and off, speaker relays, soft-start, etc.
wget http://audio.claub.net/software/LADSPA/OnOffDelay_v2.tar
or Click here to download OnOffDelay
Licensed under GPLv3 for personal use. Others please contact me at: [email protected]


REVISION HISTORY:
11 JULY 2015 1.01: updated LADSPA IDs, removed extraneous output lines
20 JULY 2015 1.02: fixed minor errors, removed march=native compiler flag, updated documantation
23 JULY 2015 1.03: updated NAME and LABEL fields for both plugins to improve compatibility with existing standards.
6 APRIL 2016: ACDf v1.04 fixes analyseplugin error message regarding run_adding. Added new plugin OnOffDelay ver1.0 and renamed zip file containing all plugins.
11 June 2016: ACDf v2.0 released. Filter performance improved using a new formulation for the filters.
11 June 2016: Document "Implementing Crossovers Using Ecasound and LADSPA" published.
26 March 2020: Released ACDf version 3 and LADSPA-FIR
27 SEPT 2024: Released ACDf version 4 and reverse-IIR allpass filters. Removed LADSPA-FIR






LADSPA is an acronym for Linux Audio Developer's Simple Plugin API. It is an application programming interface (API) standard for handling audio filters and audio signal processing effects, licensed under the GNU Lesser General Public License (LGPL). It was originally designed for Linux through consensus on the Linux Audio Developers Mailing List, but works on a variety of other platforms.