(Do not) manipulating sound in a way which ends up to someone's liking.

OO audio™ Provides high resolution music recording, engineering, processing, mixing and mastering services and applications.
OO audio™ record label releases are in high resolution physical and downloadable formats.

With over 87 releases as a producer and/or engineer to his credit, Boby Borisov has worked in a variety of genres including television, theatre, motion picture and live sound projects. Armed with mastery of all things electronic and a passion for music, Boby dove into professional audio business in his late teens as a live sound mixer and DJ. In 1989, he graduated with a Master’s Degree in Electronics from the Technical University (Sofia, Bulgaria), where he had the chance to be part of the microprocessor and digital sound revolution while also gaining a strong experience in analog sound. Designing and manufacturing custom professional audio units made him one of the digital technology pioneers at recording studios and stage performances.
From 1991, Boby worked with most of the Bulgarian recording artists from rock, pop, contemporary folk, classical and eastern orthodox genres. While recording, mixing and producing commercial releases as chief engineer at Ton Studio 2 (Bulgarian National Television), he was also involved in recording movie scores for Bulgarian, Italian and French markets. Boby became a member of the Audio Engineering Society (AES) in 1993, and later was one of the founders of AES Bulgarian Section, serving as officer of the Technical Committee. He also pioneered professional surround monitor systems and designed several studio setups including FilmSound studio, a facility that incorporates the oldest analog multichannel recording system in Bulgaria with a state of the art HD digital production system. Boby moved to California in 2005, where he has been involved in location recordings of classical performances while continuing to mix and master overseas projects.
He is a voting member of The Recording Academy (GRAMMY) and served as Secretary of AES San Francisco section.

OO audio™ is trade mark for audio services of MPBM LLC, California. Company also holds intellectual properties and supports legacy products of mUZY and Satory brands.

Author of more than 250 songs and there are over 600 songs that he arranged for the majority of the famous Bulgarian pop singers. He has composed music for documentaries and feature films, as well as theatrical scores and music for children.

Started to learn the piano and solfège at the age of four. Quite early he began to show interest in other studies like literature, physics, and electronics. He graduated the 7th High School in Sofia, where he had formed his first rock band, assuming the duties of guitarist and vocalist. In 1971 he joined the Sofia University Faculty of Journalism, but shortly realized his true vocation was music. Rumen Boyadjiev had the chance to meet Prof. Dr. Dobri Paliev, famous for his world known school of percussion instruments. In 1972 he began studying at the instrumental faculty of the State Music Academy, where professor Paliev instantly acknowledged his natural gift for music and his huge potential to become a consummate cosmopolitan musician. To him Rumen Boyadjiev owes the deep understanding of sound as a phenomenon in music and a truly unique means of expression. On the other hand, his interest in physics and acoustics provided him with vast technical knowledge and skill, which proved indispensable later on throughout his career.
The music he was listening to at that time - all the progressive rock artists of the 70s - prompted him to form his own band and write his own music.
His mentor and music advisor Konstantin Dragnev wholeheartedly supported the idea. The fortunate acquaintances of Rumen Boyadjiev, Konstantin Tsekov and Alexander Baharov, and their shared tastes, criteria, and aspirations for something new, neither attempted nor achieved by anyone before in Bulgaria, actually brought to life the FSB trio.
Untypically talented, unconventional and innovative, each one a bearer of bright ideas and individuality, the band members complemented each other and together they turned a new page in Bulgarian rock and pop music history. They were the pioneers of electronic music in Bulgaria and succeeded in setting up new standards for arranging and audio recording.
Rumen Boyadzhiev is a genuine innovator and an undisputed authority in the field of electronic instruments and synthesizers, of electronic sound and Digital Audio Workstations. His music is inextricably linked to the beauty and richness of their unfathomable sound palette. 
Rumen Boyadzhiev is the music producer of many artists’ and bands’ albums, including Pyromania, Tumno and Roberta. In 1993 he received the National Producer of the Year Award.
In 1995 Rumen Boyadzhiev set up his own recording studio, Kontrapunkti, the only Bulgarian studio at the time focusing on post-production, hard disk recording, and digital mastering and surround techniques. Soon production label Kontrapunkti was established, specializing in promotion, management, publishing and related activities.
Rumen Boyadzhiev is often asked to adjudicate at numerous national and international festivals and music competitions. He is the author of the official music tags of the Bulgarian National Radio Horizont program and the Bulgarian National Television Po sveta I u nas news program.
Rumen Boyadzhiev is a member of the Audio Engineering Society (AES), one of the founders of the Association of the Recording Studios in Bulgaria (BNAPZ), the official Protools and Digidesign consultant for Bulgaria. He is also a member of the Bulgarian Film Makers Union and the Union of Bulgarian Composers.

Rumen Boyadjiev is following