Zanna Sound is a Brazilian company specializing in sound branding, which creates musical identities for brands, environments, and systems (such as subways, apps, and stores). The company is known for developing customized auditory environments for public transport systems and other large-scale infrastructure projects in Brazil.
Founded by Zanna (Rozana Bruno Lopes), a Brazilian singer, music producer, and sound engineer, in Rio de Janeiro, around 2007âÂÂ2008, the company is considered one of the pioneers in Brazil in sound branding, which is the strategic use of sound to build a brand's identity.
Zanna Sound is Latin America's first sound branding agency.
The origins of Zanna Sound are closely linked to its founder's early initiatives in sound design. Around 2009, Zanna began developing ideas to improve the auditory experience in public transport systems after encountering the use of generic background music, including works by Antonio Vivaldi, in stations of the Rio de Janeiro Metro. She proposed an alternative approach focused on creating a localized and functional sound identity.
Zanna personally approached metro authorities with her concept, advocating for a more cohesive auditory environment. In 2011, she became the voice behind the Rio de Janeiro Metro's automated announcements, marking the beginning of the company's involvement in large-scale transport projects.
The company gained prominence through its work with the Rio de Janeiro Metro, where it developed a comprehensive sound identity system, including automated announcements, passenger guidance messages, and overall auditory experience design.
This project is considered one of the company's earliest and most significant case studies, frequently cited as an example of the application of sound branding in public infrastructure.
In addition to the Rio de Janeiro Metro, Zanna Sound has contributed to the sound identity of transport systems such as ViaMobilidade lines in São Paulo and audio projects for airports across Brazil. According to company estimates, its sound design work reaches an audience of approximately 22 million people.
Zanna Sound is responsible for the development of the sound identity of some Brazilian airports, such as the GRU Airport, in Guarulhos, São Paulo, and other airports managed by the Infraero state owned company.
Zanna Sound operates with a core team of around six professionals, but expands its workforce depending on project scale, sometimes involving up to 50 collaborators in larger productions. The company works with multiple voice actors for its recordings, and not all audio outputs feature the voice of its founder.
Revenue generated by Zanna Sound varies depending on the nature and scale of its projects, as contracts are typically customized rather than standardized.
Zanna is a Brazilian singer, music producer, and businesswoman. In addition to founding Zanna Sound, she has built a career as a recording artist and audio professional.
Her self-titled debut album was nominated for Best Brazilian Popular Music Album at the 18th Latin Grammy Awards. In November 2025, she released her second studio album, Reflexos, through her own label, Zanna Sound. The album includes a track inspired by the Rio de Janeiro Metro announcements, reflecting the intersection between her musical work and sound branding activities.
Zanna has stated that her work in sound branding emerged from her broader background in composition, singing, and audio engineering, combining artistic expression with innovation in the field of sound design.