Free audio ladspa plugin software for linux

Audio::LADSPA::Plugin is a base class for LADSPA plugins in Perl.

SYNOPSIS

use Audio::LADSPA;

my (@plugin_classes) = Audio::LADSPA->plugins();

# or ...
my $plugin_class = Audio::LADSPA->plugin( label => "delay_5s", id => 1043);

my $plugin = $plugin_class->new($sample_rate);

Audio::LADSPA::Plugin is a base class for LADSPA plugins. Default behaviour of the Audio::LADSPA module is to generate a subclass for each plugin found in LADSPA_PATH, using the Audio::LADSPA::LibraryLoader module.

You can use the Audio::LADSPA::Plugin classes to query the capabilities of the loaded plugin, and you can instantiate new objects from them to do some actual audio processing.

A list of all available classnames on your system can be retrieved from Audio::LADSPA->plugins(), or you can get one by label and / or id via Audio::LADSPA->plugin( %ARGS )

VU Leds XMMS Plugin simulates a vu meter using the keyboard LEDs. Options include reversing LED direction and binary flash mode (binary scale from 0-7). VU Leds must be run as root.

Audio::LADSPA::Network is a semi automatic connection of Audio::LADSPA::* objects.

SYNOPSIS

use Audio::LADSPA::Network;
use Audio::LADSPA::Plugin::Play;
sub subscriber {
my ($object,$event) = @_;
$object = ref($object);
print "Recieved event $event from $objectn";
}
Audio::LADSPA::Network->add_subscriber(*,⊂scriber);

my $net = Audio::LADSPA::Network->new();
my $sine = $net->add_plugin( label => sine_fcac );
my $delay = $net->add_plugin( label => delay_5s );
my $play = $net->add_plugin(Audio::LADSPA::Plugin::Play);

$net->connect($sine,Output,$delay,Input);
$net->connect($delay,Output,$play,Input);

$sine->set(Frequency (Hz) => 440); # set freq
$sine->set(Amplitude => 1); # set amp

$delay->set(Delay (Seconds) => 1); # 1 sec delay
$delay->set(Dry/Wet Balance => 0.2); # balance - 0.2

for ( 0 .. 100 ) {
$net->run(100);
}
$sine->set(Amplitude => 0); #just delay from now
for ( 0 .. 500 ) {
$net->run(100);
}

This module makes it easier to create connecting Audio::LADSPA::Plugin objects. It automatically keeps the sampling frequencies correct for all plugins, adds control and audio buffers to unconnected plugins and prevents illegal connections.

It also implements an observable-type API via Class::Publisher that can be used to recieve notifications of events in the network. Amongst other things, this makes writing loosely coupled GUIs fairly straightforward.

XFCE Radio Plugin is a plugin for the XFCE panel, which allows you to control your v4l radio device from within the panel.

K3b Monkeys Audio plugin is a K3b plugin for decoding and encoding. I finished it a long time ago but was unsure about releasing it due to the licensing issues.

But the author of the Monkeys Audio SDK did not answer to my mails in several month and on his homepage he states "if youre a freeware author, go nuts". Well, GPLed software is not really freeware but its free and not commercial so I hope releasing this is ok.

For now I release the K3b Monkeys Audio plugin as a seperate package for the reasons metioned above.

If you are interested make sure you are using at least K3b 0.11 since the plugin API changed and this plugin does not contain a proper configure check.

XChat2 plugin helps you to use BMPx from within XChat, including remote control, add files to playlist from file or library, select bookmarked audio stream and having XChat interact with your IRC channel (displaying current track played) with a customizable look.

Usage:

You need to have Python plugin loaded first and then load bmp-xchat-plugin.py file. To autoload the plugin at startup, just copy it to your ~/.xchat2 directory. Then run /bmp help in xchat to have the list of supported commands.

Thunar Media Tags Plugin (thunar-media-tags-plugin) adds special features for media files to the Thunar File Manager.
Main features:
- a so-called bulk renamer, which allows users to rename multiple audio files at once, based on their tags (e.g. ID3 or OGG/Vorbis),
- a special media file page for the file properties dialog, which displays detailed information about quality, length etc.,
- and finally, an audio tag editor which is reachable from both, renamer and the properties page.

FIR filter Plugin is an effect plugin for XMMS which enables to filter audio data using long FIR (finite impulse response) filters. Typical applications is loudspeaker or room equalization which typically requires filters with more than 300 taps (filter weights).

The FIR filter plugin uses the fftw3 library to perform the filtering using the overlap-and-add method. If fftw3 is not available the plugin will perform the filtering (convolution) in the time-domain which is much less efficient for long filters.