Openstudio Openstudiopro-plugins-ladspa packages

A set of ambisonics plugins, mainly to be used within Ardour. Mono and stereo to B-format panning, horizontal rotator, square, hexagon and cube decoders.

AmbDec is an Ambisonics decoder for up to 36 speakers. It can be used for both horizontal and full 3-D systems of first, second and third order. The decoding matrices are fully user-configurable. AmbDec has some advanced features not found on most decoders:

• Dual frequency band operation.
• Speaker distance compensation.
• Near-field effect compensation.

All three features can be selectively enabled or disabled in the configuration.

AlsaModularSynth is a realtime modular synthesizer and effect processor. It features:

• MIDI controlled modular software synthesis.
• Realtime effect processing with capture from e.g. "Line In" or "Mic In".
• Full control of all synthesis and effect parameters via MIDI.
• Integrated LADSPA Browser with search capability.
• JACK Support.

Autotalent is a real-time pitch correction plugin. Users can specify the notes that a singer is allowed to hit, and Autotalent makes sure that they do. Autotalent may be used for more exotic effects, like the Cher / T-Pain effect, making your voice sound like a chiptune, adding artificial vibrato, or messing with your formants. Autotalent can also be used as a harmonizer that knows how to sing in the scale with you. Or, you can use Autotalent to change the scale of a melody between major and minor or to change the musical mode.

Autotalent was designed from the ground up to process musical melodies, whether sung or played on some kind of instrument. As long as you give it a monophonic source (i.e. a melody in a single, 1-channel track), you can usually expect pretty good results. So this means that if you're in the business of processing vocal harmonies, you should apply it to each monophonic vocal part separately. If in the spirit of experimentation you're daring enough to try tuning or pitch shifting an entire chord using one instance of the plugin (again not what it's meant for), you'll hear gritty nastiness.

A collection of LADSPA plugins containing three anti-aliased, minBLEP-based, hard-sync-capable oscillator plugins. The oscillators are intended to be used with modular synthesis systems, such as Alsa Modular Synth.

BLOP comprises a set of LADSPA plugins that generate bandlimited sawtooth, square, variable pulse and slope-variable triangle waves, for use in LADSPA aware audio applications, principally as components of a modular synthesis network.

They are wavetable based, and are designed to produce output with harmonic content as high as possible over a wide pitch range.

Additionally, there are a few extra plugins to assist in building synthesis networks, like a analogue-type sequencer, sync-square and ADSR envelope.

caps comprises a range of classic sound effects and a few more basic audio DSP units, signal and noise generators. The suite's aim is to provide impeccable sound quality, computational efficiency and no perceptible latency.

Documentation: http://quitte.de/dsp/caps.html

This plugin enables the creation of LADSPA plugins with the Csound language.

For more information on Csound or LADSPA, see the csound or ladspa-sdk packages, respectively.

Four-band parametric equaliser. Each section has an active/bypass switch, frequency, bandwidth and gain controls. There is also a global bypass switch and gain control.

The 2nd order resonant filters are implemented using a Mitra-Regalia style lattice filter, which has the nice property of being stable even while parameters are being changed.

All switches and controls are internally smoothed, so they can be used 'live' without any clicks or zipper noises. This should make this plugin a good candidate for use in systems that allow automation of plugin control ports, such as Ardour, or for stage use.

Utility Plugins

  Input Module (Stereo only)
Alter gain, balance, width, phase on a stereo signal

Filter Plugins

  Low Pass (Mono and Stereo version)
  High Pass (Mono and Stereo version)
Gentle high pass and low pass filters

Simulation Plugins

  Tube - (Mono and Stereo version)
Valve warmth/distortion simulation

Dynamics Plugins

  Compressor - (Mono and Stereo version)
Peak/RMS soft-clipping compressor

Reverb Plugins

  ER Reverb - (Mono and Stereo summing In)
Early reflection based reverb.

JACK Rack is an effects "rack" for the JACK low latency audio API. The rack can be filled with LADSPA effects plugins and can be controlled using the ALSA sequencer. It's phat; it turns your computer into an effects box.

Jconvolver is a Convolution Engine for JACK using FFT-based partitioned convolution with multiple partition sizes. It can execute up to a 64 by 64 convolution matrix (i.e. 4096 simultaneous convolutions) as long as your CPU(s) can handle the load.

Package include example files for easy start using jconvolver. These files will be installed in /usr/share/convolver/config-files dir. More info in /usr/share/doc/jconvolver/README.CONFIG.

You can also download additional reverb file jconvolver-reverbs.tar.bz2 from http://kokkinizita.linuxaudio.org/linuxaudio/downloads/index.html

LADSPA is a free standard specification for audio effect plugins.

Contains sample plugins, and analyseplugin, listplugin, applyplugin programs, and the ladspa.h, the LADSPA specification.

Please build-depend on this package if you need ladspa.h

MCP plugins implement a set of LADSPA plugins that vastly improve the sound of AlsaModularSynth.

Currently they consist of these plugins:

• Moog VCF (1-3): Moog lowpass filters that quite successfully emulate the properties of the analogue circuit. Version 3 of these filters is recommended.
• Phaser1: A phaser with up to 30 all-pass filters in series.
• Phaser1+LFO: The same as above, but with built-in LFO. LFO waveform can be continuosly changed from saw down to triangle and saw up.
• Chorus (1,2): Two chorus plugins.

These plugins are provided:

• Range translator
• Formant filter
• AD Envelope
• DAHDSR Envelope
• Hz to V/Oct converter
• Comparison
• Fast Crossfade
• Masher, Multiplexer
• Power, Probability Switch
• Sample and Hold
• Signal Absolute Value
• Slew Limiter
• Slide
• Waveguide Mesh

This plugin features two inputs for stereo operation, and some code to prevent floating point denormalisation. Plugin is based on gverb by Juhana Sadeharju, but the code is entirely original.

Rubber Band is a library and utility program that permits you to change the tempo and pitch of an audio recording independently of one another.

This package contains a LADSPA plugin that can change the pitch of a sound in real-time.

Steve Harris has written a large number of plugins for LADSPA compatible hosts (e.g. GLAME, Sweep and ecasound). The plugins available are:

amp, fast overdrive, overdrive (with colourisation), comb filter, waveshaper, ringmod, divider, diode, decliper, pitch scaler, 16 band equaliser, sinus wavewrapper, hermes filter, chorus, flanger, decimater, oscillator, gverb, phasers, harmonic generators, surround encoders and more.

Tom Szilagyi has written a number of plugins for LADSPA compatible hosts (e.g. Ardour, GNU Sound and GStreamer).

The plugins (Equalizer, Reverberator, Stereo Echo, Tremolo, Scaling Limiter, AutoPanner and DeEsser) have been written primarily for Ardour but should work well with any LADSPA host.

This plugin contains three anti-aliased oscillators, all based on the concept of using precomputed bandlimited Dirac pulses to construct the classical waveforms. They are both memory and CPU efficient. The first one produces a flat spectrum (impulses) and the second generates a sawtooth waveform. The third one (new in 0.3.0), provides a variable width rectangular waveform.

This LADSPA plugin is the combination of a 'wah' pedal and a simple envelope follower.

Controls are:

• Freq: the resonance frequency of wah filter. This would normally be controlled using a midi pedal.
• Mix: crossfades between dry and wet signal, the first is the original input signal and the latter is the pure output of the resonant filter amplified by 18 dB.

The three remaining parameters control the envelope follower. This produces a control signal that is added to the 'Freq' setting.

• Drive: input gain to the envelope follower (so this gain is not in the signal path).
• Decay: controls the decay time of the envelope.
• Range: controls how much the envelope is allowed to modify the basic frequency.

AT1 is an 'autotuner', normally used to correct the pitch of a voice singing (slightly) out of tune. Compared to 'Autotalent' it provides an improved pitch estimation algorithm, and much cleaner resampling.

AT1 does not include formant correction, so it should be used to correct small errors only and not to really transpose a song. The 'expected' pitch can be controlled by Midi (via Jack only), or be a fixed set of notes. AT1 can probably be used on some instruments as well, but is primarily designed to cover the vocal range. It's also usable as a quick and dirty guitar tuner.

Frontend for jconvolver/jconv (convolve engine)

This utility allow you control most important parameters of jconvolver/jconv from GUI and also store and recall presets.

REV1 is a reworked version of the reverb originally developed for Aeolus. Its character is more 'hall' than 'plate', but it can be used on a wide variety of instruments or voices. It is not a spatialiser - the early reflections are different for the L and R inputs, but do not correspond to any real room. They have been tuned to match left and right sources to some extent.

In Stereo mode a dry/wet mix control is provided, so it can be used either as an insert or in send/return mode. For mono just connect one of the two channels.

In Ambisonic mode (selected by the -B command line option) the only option is the send/return mode.