Calf Studio Gear, often referred to as Calf Plugins, is a set of

open source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use and view the source code, design documents, or content of the product. The open source model is a decentrali ...

LV2 plugins for the

Linux Linux ( ) is a family of open source Unix-like operating systems based on the Linux kernel, an kernel (operating system), operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically package manager, pac ...

platform. The suite intends to be a complete set of plugins for

audio mixing Audio mixing is the process by which multiple sounds are combined into one or more audio channels. In the process, a source's volume level, frequency content, dynamics, and panoramic position are manipulated or enhanced. This practical, aest ...

, virtual instruments and mastering. As of version 0.90.0 there are 47 plugins in the suite.

History

Calf Studio Gear development started in late 2007 when the LV2 plugin standard was in its infancy. Calf Studio Gear was one of the first projects to bring graphical audio plugins to Linux. The first versions up to 0.0.19 included support for

LADSPA The Linux Audio Developer's Simple Plugin API (LADSPA) is an application programming interface (API) standard for handling audio filters and audio signal processing effects, licensed under LGPL-2.1-or-later. Originally designed through consensus ...

and DSSI as well which was dropped in December 2011. The project was initiated by Krzysztof Foltman. In 2009 Markus Schmidt became interested in development of the plugin suite due to his frustration with proprietary software. He has been a driving force behind the plugins ever since and has been responsible for the overall design of Calf Studio Gear, as well as being the brains behind the DSP of many of its plugins.

Included plugins

Calf Studio Gear is the most complete suite of music production plugins for

. The included plugins are: * Instruments ** ''Organ'':

organ Organ and organs may refer to: Biology * Organ (biology), a group of tissues organized to serve a common function * Organ system, a collection of organs that function together to carry out specific functions within the body. Musical instruments ...

emulator with full access to the sound generators ** ''Monosynth'': a monophonic

synthesizer A synthesizer (also synthesiser or synth) is an electronic musical instrument that generates audio signals. Synthesizers typically create sounds by generating waveforms through methods including subtractive synthesis, additive synthesis a ...

** ''Fluidsynth'':

SF2 SRF zwei (''Swiss Radio and Television Two'') is a Swiss German-language free-to-air television channel run under the public SRG SSR broadcasting group. History The channel was launched in 1997 as 'SF 2' as the German-speaking replacement f ...

player based on the

FluidSynth FluidSynth, formerly named iiwusynth, is a free open source software synthesizer which converts MIDI note data into an audio signal using SoundFont technology without need for a SoundFont-compatible soundcard. FluidSynth can act as a virtual MIDI ...

library ** ''Wavetable (experimental)'': wavetable based synthesizer in experimental state * Modulation Effects ** ''Multi Chorus'':

chorus Chorus may refer to: Music * Chorus (song), the part of a song that is repeated several times, usually after each verse * Chorus effect, the perception of similar sounds from multiple sources as a single, richer sound * Chorus form, song in whic ...

effect with multiple, individual delay lines and graphical display ** ''Phaser'': phaser effect with graphical display of the frequency response ** ''Flanger'':

flanger Flanging is an audio effect produced by mixing two identical signals together, one signal delayed by a small and (usually) gradually changing period, usually smaller than 20 milliseconds. This produces a swept comb filter effect: peaks and ...

effect with graphical display of the frequency response ** ''Rotary Speaker'':

Leslie speaker The Leslie speaker is a combined amplifier and loudspeaker that projects the signal from an electric or electronic instrument and modifies the sound by rotating a baffle chamber ("drum") in front of the loudspeakers. A similar effect is provided ...

emulation ** ''Pulsator'': LFO for

Tremolo In music, ''tremolo'' (), or ''tremolando'' (), is a trembling effect. There are multiple types of tremolo: a rapid repetition of a note, an alternation between two different notes, or a variation in volume. Tremolos may be either ''measured'' ...

effects ** ''Ring Modulator'':

Ring modulation In electronics, ring modulation is a signal processing function, an implementation of frequency mixing, in which two signals are combined to yield an output signal. One signal, called the carrier, is typically a sine wave or another simple w ...

effect with two LFO modulating four different parameters * Delay Effects ** ''Reverb'':

Reverberation In acoustics, reverberation (commonly shortened to reverb) is a persistence of sound after it is produced. It is often created when a sound is reflection (physics), reflected on surfaces, causing multiple reflections that build up and then de ...

effect ** ''Vintage Delay'': beat-oriented

delay Delay or DeLay may refer to: People * B. H. DeLay (1891–1923), American aviator and movie stunt pilot * Dorothy DeLay (1917–2002), American violin instructor * Florence Delay (born 1941), French academician and actor * Jan Delay, stage name ...

effect with filters and synchronization ** ''Compensation Delay Line'': distance based delay for compensating speaker line-ups ** ''Reverse Delay'': reversed delay effect * Dynamics ** ''Compressor'':

compressor A compressor is a mechanical device that increases the pressure of a gas by reducing its volume. An air compressor is a specific type of gas compressor. Many compressors can be staged, that is, the gas is compressed several times in steps o ...

with New York compression and graphical display ** ''Sidechain Compressor'': compressor with filtered sidechain ** ''Multiband Compressor'': multiband compressor with four individual bands ** ''Mono Compressor'': another compressor based on a different routine ** ''Deesser'':

De-essing De-essing (also desibilizing) is any technique intended to reduce or eliminate the excessive prominence of sibilant consonants, such as the sounds normally represented in English by " s", "z", "ch", "j" and "sh", in recordings of the human voice. ...

with different filters and split mode ** ''Gate'':

noise gate A noise gate or simply gate is an electronic device or software that is used to control the amplitude, volume of an audio signal. Comparable to a limiter, which attenuates signals ''above'' a threshold, such as loud attacks from the start of mu ...

with parallel setting and graphical display ** ''Sidechain Gate'': noise gate with filtered sidechain ** ''Multiband Gate'': multiband noise gate with four individual bands ** ''Limiter'': lookahead

limiter In electronics, a limiter is a circuit that allows signals below a specified input power or level to pass unaffected while attenuating (lowering) the peaks of stronger signals that exceed this threshold. Limiting is a type of dynamic range co ...

with automatic sustain control ** ''Multiband Limiter'': multiband limiter with four bands ** ''Sidechain Limiter'': multiband limiter with additional sidechain for giving importance to relevant signals ** ''Transient Designer'': controls

transients Transience or transient may refer to: Music * ''Transient'' (album), a 2004 album by Gaelle * ''Transience'' (Steven Wilson album), 2015 * Transience (Wreckless Eric album) Science and engineering * Transient state, when a process variable o ...

and sustain * Filters and Equalizers ** ''Filter'':

filter Filtration is a physical process that separates solid matter and fluid from a mixture. Filter, filtering, filters or filtration may also refer to: Science and technology Computing * Filter (higher-order function), in functional programming * Fil ...

for lowpass, highpass, bandpass and bandreject with graphical display ** ''Filterclavier'': filter controlled via

MIDI Musical Instrument Digital Interface (; MIDI) is an American-Japanese technical standard that describes a communication protocol, digital interface, and electrical connectors that connect a wide variety of electronic musical instruments, ...

** ''Envelope Filter'': filter controlled via

Envelope detector An envelope detector (sometimes called a peak detector) is an electronic circuit that takes a (relatively) high-frequency signal as input and outputs the '' envelope'' of the original signal. Diode detector A simple form of envelope detect ...

** ''Emphasis'': filter for different pre- and de- emphasis like CD and vinyl production ** ''Vocoder'':

vocoder A vocoder (, a portmanteau of ''vo''ice and en''coder'') is a category of speech coding that analyzes and synthesizes the human voice signal for audio data compression, multiplexing, voice encryption or voice transformation. The vocoder wa ...

effect for 8, 12, 16, 24 or 32 individual bands, with tilting and noise generator ** ''5-Band-Equalizer'': parametrical equalizer offering high shelf, low shelf and three parametric bands, with analyzer ** ''8-Band-Equalizer'': parametrical equalizer with high shelf, low shelf, low pass, high pass and four parametrical bands ** ''12-Band-Equalizer'': parametrical equalizer with high shelf, low shelf, low pass, high pass and eight parametrical bands ** ''30-Band-Equalizer'': graphical equalizer * Distortion and Saturation ** ''Saturator'': enriches the signal with different

harmonics In physics, acoustics, and telecommunications, a harmonic is a sinusoidal wave with a frequency that is a positive integer multiple of the ''fundamental frequency'' of a periodic signal. The fundamental frequency is also called the ''1st harm ...

** ''Exciter'': harmonic exciter adding additional high frequency harmonics ** ''Bass Enhancer'': harmonic exciter adding low frequency harmonics ** ''Tape Simulator'': simulates the effects of

magnetic tape Magnetic tape is a medium for magnetic storage made of a thin, magnetizable coating on a long, narrow strip of plastic film. It was developed in Germany in 1928, based on the earlier magnetic wire recording from Denmark. Devices that use magnetic ...

and corresponding players ** ''Vinyl'': adds different controllable sounds produced by

vinyl records A phonograph record (also known as a gramophone record, especially in British English) or a vinyl record (for later varieties only) is an analog sound storage medium in the form of a flat disc with an inscribed, modulated spiral groove. The g ...

and filters the signal ** ''Crusher'': Bitcrusher and sample rate reduction with smoothing and logarithmic reduction pattern * Tools ** ''Mono Input'': splits a mono input to stereo, with phase control, phase inversion, soft clip and channel delay ** ''Stereo Tools'': stereo signal manipulation with M/S stereo en- and decoding, phase inversion, phase control, balance, soft clip and channel delay ** ''Haas Stereo Enhancer'':

Precedence effect The precedence effect or law of the first wavefront is a binaural psychoacoustical effect concerning sound reflection and the perception of echoes. When two versions of the same sound presented are separated by a sufficiently short time delay ...

** ''Multi Spread'': distributes the frequency response of a mono signal to stereo channels ** ''Multiband Enhancer'': enhances or reduces the stereo base and adds harmonics in four different frequency ranges ** ''X-Over 2 Band'': splits the signal in two individual frequency ranges ** ''X-Over 3 Band'': splits the signal in three individual frequency ranges ** ''X-Over 4 Band'': splits the signal in four individual frequency ranges ** ''Analyzer'':

Spectrum analyzer A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals. The input signal that most co ...

with different viewing modes, L/R difference, spectralizer and

goniometer A goniometer is an instrument that either measures an angle or allows an object to be rotated to a precise angular position. The term goniometry derives from two Greek words, γωνία (''gōnía'') 'angle' and μέτρον (''métron'') ' me ...

References

{{Reflist

External links

Official Calf Studio Gear website
Linux Free audio software Audio software Audio software for Linux