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За СПЕКТРИ

Who we are

SPECTRI provides measurements, analysis and solutions for noise, vibration and acoustic environment throughout Bulgaria.

Since 1998, we have been helping enterprises, institutions, laboratories and private clients with cases related to measurement, evaluation, control, monitoring, calibration and selection of specialized equipment.

SPECTRI combines expertise, specialized equipment, and a practical engineering approach to offer not only results, but also a clear understanding of the problem and possible next steps.

Our main activities include:

  • Accredited measurements of noise, vibrations, microclimate and lighting
    for control, inspections, internal procedures, assessment of working and environmental conditions
  • Accredited calibration of sound level meters, sound calibrators and related equipment
    when accuracy, traceability and reliability of measurements are critical
  • Доставка, сервиз и внедряване на специализирано оборудване
    за измерване, мониторинг и анализ на шум и вибрации
  • Testing and self-monitoring of environmental noise
    for industrial enterprises, ecologists and health and safety specialists
  • Acoustic surveys and projects
    when necessary for assessment, design and noise reduction measures
  • Vibration monitoring and diagnostics
    for key machines, equipment, structures and technical systems
  • Training and consultations
    on proper use of equipment, methodologies and interpretation of results

Contact SPECTRI for expert assistance:

  • noise measurement from an industrial site, establishment, installation, machine or technical facility;
  • documenting noise or vibration for regulatory, technical or internal company purposes;
  • self-monitoring of environmental noise;
  • assessment of noise impact on working, residential or public environments;
  • vibration diagnostics of machines and equipment;
  • selection, delivery or service of noise and vibration measurement equipment;
  • calibration of a sound level meter, sound calibrator, dosimeter or other measuring equipment;
  • development of an acoustic design or noise reduction measures;
  • training a team to work with measurement equipment or interpret results.

Our Clients

At SPECTRI, we work with clients who need accurate measurements, reliable documentation, technical expertise, and practical solutions.

  • Industrial enterprises and production facilities
    in controlling noise, vibrations, machines, installations and the working environment.
  • Ecologists and HSE specialists
    in their own monitoring, inspections, permit regimes and internal control.
  • Municipalities and public organizations
    in assessing, managing and planning environmental noise measures.
  • Construction and engineering companies
    in technical surveys, control, projects and verification of parameters.
  • Laboratories and control bodies
    in calibration, equipment, service and methodological assistance.
  • Investors, designers and consultants
    in acoustic projects, technical specifications and selection of solutions.
  • Private individuals
    in case of problems with noise or vibrations from technical sources, installations, establishments or neighboring sites.

Why Choose SPECTRI?

  • Experience since 1998.
    Many years of specialization in the field of noise, vibration and acoustic environment.
  • Accredited activities and professional methodology
    Reliable work when the results need to be used for control, documentation or technical solutions.
  • A combination of measurement, analysis and solution
    We don't just provide data, we help understand the problem and choose next steps.
  • Working throughout Bulgaria
    We serve industrial, public, infrastructure and private sites.
  • Equipment expertise
    We know the equipment not only as users, but also as a supplier, service and consulting partner.

Do you have a case with noise, vibration, measurement or equipment?

Briefly describe the object, problem or service required. We will guide you to the appropriate measurement, technical solution or next step.


Office: Sofia 1700, Studentski Complex, Baku Street No. 5A, floor No. 5, office 5-2,3

Tel.: (02) 963-0464, 963-2638

Email spectri@spectri.net