[technology]

Acoustic Vehicle Alerting System (AVAS)

We develop and integrate customized AVAS sound systems for any platform, ensuring compliance
with international regulations while standing out from the crowd

External Acoustic Alert System (AVAS)
Unlike traditional combustion engines, electric vehicles are nearly silent. While this enhances comfort for drivers and passengers, it poses a potential risk to pedestrians and cyclists.

To enhance safety, all new electric and hybrid cars are equipped with AVAS systems (UNECE R138 and FMVSS 141), emitting sound at low speeds to alert road users.
Listen to how it works
AVAS as Part of a Vehicle’s Identity
Beyond safety, AVAS sound can contribute to a vehicle’s brand identity. A well-crafted, balanced tone can serve as a distinctive signature, immediately recognizable as part of a specific brand.

Achieving this within technical limitations is a challenge tackled by engineers at SPB Audio Lab Bulgaria.
Listen to how it works

AVAS (Acoustic Vehicle Alerting System drive)

External warning sounds for electric and hybrid vehicle applications

Internal active
sound design

In-cabin sound profiles shaped by vehicle state and driver input

External active
sound design

Exterior sound profiles that express vehicle identity beyond safety alerts

Driver assistance sounds

Functional auditory cues for alerts, notifications and vehicle interaction

Our technologies

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