====== . Commonly used abbreviations ======

^  Abbrev  ^  Shorthand for  ^  Explanation  ^
| AB | Audiobus | IOS software that allows to connect audio and midi application. Currently using the IAA protocoll for inter process communication. The AB app supports AU plugins and offers application switching and application state saving and remote control (see [[https://wiki.audiob.us/audiobus_features|Audiobus features]]) |
| AB3 | Audiobus 3 | Third version of the AudioBus protocoll | 
| ABF | Audiobus Forum | The main forum for IOS musicians and developers | 
| AD | Audio Damage | Company offering audio plugins | 
| AD | Attack Decay | Synthesizer envelop module with attack and decay parameter |
| ADC | Analog-to-Digital Converter | Hardware to input external analog signals from guitars, synth, instruments or microphones into digital systems (see [[https://en.wikipedia.org/wiki/Analog-to-digital_converter|Wikipedia]])|
| ADSR | Attack Decay Sustain Release | Synthesizer envelop module with standard parameters, mainly used to shape the sounds amplitude with a VCA or the overtone amount with a VCF | 
| AM | Amplitude Modulation | Sound synthesis: Modulating the volume of an audio signal with another audio signal  ([[https://en.wikipedia.org/wiki/Amplitude_modulation|Wikipedia]]) |
| AN | Analog Physical Modeling | Synthesis method of the Yamaha AN1x, one of the first physical modeling synthesizers, proprietary (see [[https://en.wikipedia.org/wiki/Yamaha_AN1x|Wikipedia]])|
| AP | Auria Pro | Audio and MIDI workstation app |
| ARP | Arpeggio | Synthesizer module that breaks chords into a sequence of notes |
| AT | Aftertouch | Midi message allowing to add additional pressure information to notes (per midi channel). The AT midi message affects all currently playing notes - there is a Poly Pressure midi message to allow per note pressure information |
| AU | Audio Unit | Apples audio plugin format for Audio and Midi plugins, currently version 3 (AUv3) |
| AU Host | Audio Unit Host | Application that can load plugins in the AUv3 format |
| AUM | Audio Mixer | Audio mixing app (like Audiobus) with support for user defined channel routing, supports IAAs and AUv3. AUM itself can be loaded in Audiobus to achieve state saving and process switching for IAAs |
| AUv3 | Audio Unit Version 3 | Apples audio plugin format for Audio and Midi plugins, there are several plugin subtypes types depending on the inputs and outputs of the plugin (see [[https://wiki.audiob.us/au_features|AU features]], or for [[https://wiki.audiob.us/audio_units|list of AUs and hosts]]) | 
| BM3 | Beat Maker 3 | Audio and MIDI workstation app |
| CC | Control Change | Group of 119 midi message for parameter changes, sometimes also named continuous controller |
| CCK | Camera Connection Kit | Dongle to connect USB devices like audio or midi interfaces to the lightning port |
| CPP | Chord Poly Pad | MIDI chords player app with AB3 state-saving support |
| CV | Control Voltage | Analog modular synthesizers use voltages to modulate the sound generation - mainly 1 volt/octave in Eurorack Modular Synth. The counterpart in the digital world are midi CC send between plugins. (see [[https://en.wikipedia.org/wiki/CV/gate|Wikipedia]])|
| DAC | Digital-to-Analog Converter | Hardware to output digital signals to analog systems like headphones, amps, speakers or tape maschines (see [[https://en.wikipedia.org/wiki/Digital-to-analog_converter|Wikipedia]])|
| DAW | Digital Audio Workstation | Software used for recording, editing and producing audio files. (see [[https://en.wikipedia.org/wiki/Digital_audio_workstation|Wikipedia]]) |
| DSP | Digital Signal Processor | Hardware specialized in processing digital audio signals (see [[https://en.wikipedia.org/wiki/Digital_signal_processor|Wikipedia]])|
| EG | Envelop Generator | Synthesizer module generating a control voltage that varies over time. The start of the envelop is triggered by either a trigger pulse or a gate signal (see [[https://en.wikipedia.org/wiki/Envelope_(music)|Wikipedia]]). There are different types of envelops like AD, ADSR |
| ENV | Envelop Generator | See EG |
| EXS | EXS | Sampler instrument format used by Logic Pro |
| EQ | Equalizer | Plugin or app adjusting the balance between frequency components ([[https://en.wikipedia.org/wiki/Equalization_(audio)|Wikipedia]]) |
| FDSP | Formulated Digital Sound Processing | Synthesis method similar to VAST used in the Yamaha EX5, proprietary |
| FF | FabFilter | Company offering audio plugins | 
| FM | Frequency Modulation | Sound synthesis: Modulating the frequency of an audio signal with another audio signal generates interesting (often inharmonic) overtones ([[https://en.wikipedia.org/wiki/Frequency_modulation_synthesis|Wikipedia]]) |
| GB | Garage Band | Apples free audio and MIDI workstation app |
| GUI | Graphical User Interface | User interface that allows interaction through the use of graphical icons and visual indicators (see [[https://en.wikipedia.org/wiki/Graphical_user_interface|Wikipedia]])|
| IAA | Inter-App-Audio | Apples audio / midi protocoll to connect stand-alone, fullscreen applications (see [[https://wiki.audiob.us/iaa_features|IAA features]]) |
| KPS | Karplus Strong Synthesis | Synthesis method where audio is generated by looping a short waveform or noise burst through a filtered delay line simulating hammered or plugged strings (see [[https://en.wikipedia.org/wiki/Karplus%E2%80%93Strong_string_synthesis|Wikipedia]])|
| LA | Linear Arithmetic Synthesis | Synthesis method used by early Roland S&S ROMplers like D50, proprietary |
| LFO | Low frequency Oscillator | Synthesizer module that generates cyclic control voltages with a frequency below 20 Hz (see [[https://en.wikipedia.org/wiki/Low-frequency_oscillation|Wikipedia]])|
| MIDI | Musical Instrument Digital Interface | Technical standard that describes a communications protocol, digital interface, and electrical connectors that connect a wide variety of electronic musical instruments, computers, and related audio devices for playing, editing and recording music. Each midi connection supports 16 channels to unidirectional transmit information. There are 8 types of messages. (See [[https://en.m.wikipedia.org/wiki/MIDI_1.0|Wikipedia]]) |
| MOD | Modulation | Midi CCs and analog CV signals can be used to vary/modulate sound generation parameters |
| MPE | MIDI Polyphonic Expression | Part of the latest midi standard. It defines how to apply per note pitch bend and other controllers. Basically each each note gets its own midi channel and all information on that channel are related to just that note. The midi channel 1 (or 16) is reserved for control messages - two MPE instruments may share a 16 channel midi connection |
| NS2 | Nano Studio 2 | App for IOS music production |
| OSC | Oscillator | Synthesizer module for generating audio signals. Audible signals are mainly generated by VCOs, control signals by LFOs |
| PB | Pitch Bend | Midi message to specify pitch bending - the value is applied to all playing notes of the midi channel |
| PC | Program Change | Midi message to change instrument patches (per midi channel)|
| PCM | Pulse Code Modulation | Method used to digitally represent sampled analog signals (see [[https://en.wikipedia.org/wiki/Pulse-code_modulation|Wikipedia]])|
| PD | Phase Distortion Synthesis | Synthesis method where the harmonic content of a carrier waveform is influenced by a waveform modulator (see [[https://en.wikipedia.org/wiki/Phase_distortion_synthesis|Wikipedia]])|
| PM | Phase Modulation | Synthesis method where the phase of a waveform is modulated by another waveform (see [[https://en.wikipedia.org/wiki/Phase_modulation|Wikipedia]])|
| PM | Physical Modeling | Synthesis method where mathematical models simulate the physical source of the sound (see [[https://en.wikipedia.org/wiki/Physical_modelling_synthesis|Wikipedia]])|
| PP | Poly Pressure | Midi message specifying per note pressure information (per midi channel) |
| RCM | Realtime Convolution & Modulation | Synthesis method used in some Yamaha synthesizers using samples as operators in FM synthesis, proprietary |
| RM | Ring Modulator | Synthesizer module applying multiplication between audio signals resulting in inharmonic overtones |
| SB | Sugar Bytes | Company offering audio plugins |
| SEQ | Sequencer | Synthesizer module that sends out notes and control voltages in discrete steps. The sequencer itself can be triggered with a clock of lfo signal |
| SFZ | SFZ | Plain text file format that stores instrument data for software samplers  [[https://en.wikipedia.org/wiki/SFZ_(file_format)|Wikipedia]] |
| S&H | Sample & Hold | Synthesizer module that takes a sample from an input signal and holds this value until the next control pulse (see [[https://en.wikipedia.org/wiki/Sample_and_hold|Wikipedia]])|
| S&S | Sample and Synthesis | Synthesis method using short looped samples (as opposed to simple waveforms) as sound basis used in Sequential Circuits Prophet VS, Korg DW6000/8000, Roland D50 and Korg M1 (see [[https://www.soundonsound.com/sound-advice/q-can-you-explain-origins-wavetable-ss-and-vector-synthesis|SoundOnSound]])|
| SWAM | Synchronous Waves Acoustic Modeling | Synthesis method to replicate the behavior of acoustic intruments, proprietary (see [[https://ccrma.stanford.edu/events/digital-modeling-of-expressive-acoustic-instruments|CCRMA Stanford]])|
| UI | User Interface | The user interface is the space where interactions between humans and machines occur (see [[https://en.wikipedia.org/wiki/User_interface|Wikipedia]])|
| UXD | User Experience Design | User experience design (UXD, UED, or XD) is the process of enhancing user satisfaction with a product by improving the usability, accessibility, and desirability provided in the interaction with a product (See [[https://en.wikipedia.org/wiki/User_experience_design|Wikipedia]]) |
| VA | Virtual Analog | Synthesis method that that generates the sound of traditional analog synthesizers using software algorithms by simulating the behavior of the original electric and electronic circuitry (see [[https://en.wikipedia.org/wiki/Analog_modeling_synthesizer|Wikipedia]])|
| VAST | Variable Architecture Synthesis Technology | Synthesis method used by Kurzweil K2000, proprietary |
| VCA | Voltage Controlled Amplifier | Synthesizer module controlling the audio volume using control voltages. Most common modulator is an envelop generator to shape the sound |
| VCF | Voltage Controlled Filter | Synthesizer module for filtering audio signals where the cutoff frequency is controlled by a control voltage | 
| VCO | Voltage Controlled Oscillator | Synthesizer module for generating audio signals where the frequency is controlled by a control volage. Often additional sound generation parameters like pulse width, slope or waveform can be controlled by other control voltages (see [[https://en.wikipedia.org/wiki/Voltage-controlled_filter|Wikipedia]])|
| VL | Virtual Acoustic Physical Modeling | Synthesis method used by Yamaha VL70m or VL1, proprietary |
| VS | Vector Synthesis | Synthesis method where the sound is dynamically crossfaded between 4 sound sources (see [[https://en.wikipedia.org/wiki/Vector_synthesis|Wikipedia]])| 

===== Not Music related Abbreviations =====

^ Abbrev ^Shorthand for ^
| AFAIK | as far as i know |
| IIRC | if i remember correctly |
| IMHO | in my humble opinion |
| FAQ | frequently asked questions |
| KISS | keep it simple stupid |
| OT | off topic |
| RTFM | read the frigging manual |
| TL;DR | too long; didn‘t read |


{{tag>[abbreviations AU audiobus midi sfz mpe exs fm iaa list]}}