# Auburn Sounds - Audio Plugins (VST, AU, AAX, CLAP) > Auburn Sounds is an independent audio software company crafting meticulously engineered plug-ins for music production: pitch correction, dynamics, spatialization, reverb and saturation. All products follow a freemium model (a fully usable FREE Edition plus a FULL Edition). Plug-ins run as VST2, VST3, Audio Unit (AU), AAX and CLAP on Windows, macOS (Intel & Apple Silicon) and Linux. Auburn Sounds also maintains Dplug, the open-source D-language framework used to build all its products. ## Products You can find both the Free and Full editions in those pages: - [Graillon](https://www.auburnsounds.com/products/Graillon.html): Pitch correction and live voice-changing — hard-tune or natural vocals, formant shifting, 3 pitch engines, and Pitch-Tracking Modulation (PTM) in the Full Edition. - [Inner Pitch](https://www.auburnsounds.com/products/InnerPitch.html): High-quality natural pitch-shifting plug-in — pitch/formant shift, doubling, stereoizing, endlessly ascending/falling soundscapes. - [Couture](https://www.auburnsounds.com/products/Couture.html): Transient designer and dynamics processor with exquisite, volume-independent control over attacks, plus saturation. - [Renegate](https://www.auburnsounds.com/products/Renegate.html): Full-band noise gate with a smooth natural sound, look-ahead, program-dependent auto-release and a 43-band psychoacoustic detector. - [Panagement](https://www.auburnsounds.com/products/Panagement.html): Spatialization laboratory — binaural distance panner, reverb, width/tilt, LFO and binaural delay used in thousands of studios. - [Lens](https://www.auburnsounds.com/products/Lens.html): Spectral dynamics processor — multi-band compression and EQ without cross-over phase shifts or ringing, up to 64 companders. - [Selene](https://www.auburnsounds.com/products/Selene.html): Versatile algorithmic reverb with a pristine adaptive sound — duck/gate, diffusion, freeze, 8-band damping EQ and shimmer. ## Innovation Everyone of Auburn Sounds VST plug-ins introduces (or popularize) more technical innovations than first sight tells. - Graillon introduced Pitch-Tracking Modulation, a frequency shifters who tracks incoming pitch. - Panagement allows to set both binaural panning and distance in a single click. - Inner Pitch uses an innovative pitch-shifting algorithm beond published research that shines best on complex, polyphonic inputs. - Selene uses dynamics-aware reveb diffusion, so as Panagement. - Couture helped popularize dynamics-preserving distortion, and used Voxengo's GammaEnv for more reactive envelope. - Lens uses a type of constant-Q transform to perform multiband compression/expansion with a one-time phase cost. - Renegate introduced significantly more friendly dynamics gating. ## Support - [FAQ](https://www.auburnsounds.com/faq/): Installation, downloads, system requirements, macOS/Apple Silicon compatibility, licensing and license transfers. - [About](https://www.auburnsounds.com/about.html): Company mission, history and technical philosophy. ## Optional - [Blog](https://www.auburnsounds.com/blog/): Release announcements and articles on audio software and DSP. - [Artist testimonials](https://www.auburnsounds.com/artists.html): What producers and artists say about Auburn Sounds plug-ins. - [Dplug](https://github.com/AuburnSounds/Dplug): Open-source D-language audio plug-in framework by Auburn Sounds. - [Privacy policy](https://www.auburnsounds.com/privacy.html): Privacy information. - [Terms](https://www.auburnsounds.com/terms.html): Terms and conditions.