In 2008, Lithuana National Martynas Mažvydas Library has started the reconstruction of the main building, which was completed in 2016.

The reconstruction was carried out with the funds of the State Investment Program and partially financed with the funds of the European Union Cohesion Fund, as well as the state budget of the Republic of Lithuania. The total value of the reconstruction of the main building of the Martynas Mažvydas National Library of Lithuania was 25 million euros.

During the reconstruction, a modern conference hall has been installed. This room is now a place for various events, presentations. Alongisde the conference room a sound recording studio, a TV studio, rehearsal rooms and a 24-seat cinema hall have been constructed.

The TV studio of the Martynas Mažvydas National Library of Lithuania is equipped by adapting the existing room to new specific needs, the acoustic environment is made dry. Video broadcast studios use electro-acoustic systems to record live sound, so short reverberation times, fuzzy sound reflections, and uniform sound attenuation are needed. The interior concept is non-dominant and assimilated with the general interior of the LNMMB building, colour solutions.

The video broadcasting room is equipped with a well-sound-absorbing acoustic finish – the walls are covered with resonant sound-absorbing structures (perforated gypsum boards); a part of side walls is fitted with a mobile acoustic / fiber structure – drapery; by increasing the sound absorption coefficient of the existing ceiling in the low sound frequency range, additional fibrous materials are laid on the structure of the existing acoustic ceiling; the partition between the studio and the assembly room is formed at an angle, avoiding parallel surfaces. In the video broadcasting studio, the reverberation time was measured at 0.3 seconds, it is also possible to change it by adjusting the area covered by the drapery.