Bullerkollen

Indicative Sound Level Meter

Free · Designed for iPad. Not verified for macOS.

Bullerkollen is an indicative sound level meter for iOS that turns your phone's built-in microphone into a practical measurement tool for noise, acoustics and vibration. SOUND AND NOISE MEASUREMENT Measure with A- and C-weighting according to IEC 61672-1. The app calculates LAeq, LAFmax, LCeq, LCpeak, LASmax, LAFmin, L10, L50, L90 and LAE (SEL) in real time. Choose measurement duration (5–60 seconds) and save results with a name and notes. 1/3-OCTAVE SPECTRUM View A-weighted equivalent level per 1/3-octave band (20 Hz–16 kHz) in a clear bar chart. Perfect for identifying the frequency content of a noise source. 24-HOUR LOG Measure and log LAeq and LAFmax continuously for as long as you need — hours or entire nights. Choose resolution (1 second to 15 minutes) and export a PDF report directly in the app. Ideal for night-time measurements and longer monitoring sessions. INDICATIVE INSULATION SCREENING Estimate the sound insulation of a wall or floor (DnT and R') as a single-number value according to ISO 717-1. Use a Bluetooth speaker as the source and measure in source and receiver rooms in five steps. Import reverberation time from Akustikkollen or enter manually. VIBRATION METER Measure linear acceleration (m/s²) using the phone's accelerometer. Shows live RMS, measurement RMS per axis (X/Y/Z) and comfort class according to ISO 2631-1 — indicative screening of whole-body vibration. CALIBRATION • Device profiles for known phone models (based on NIOSH data) • Calibration against a reference sound level meter • Manual dB offset • Support for external measurement microphones with calibration curve (.cal / .csv) BBR COMPARISON Compare measurement results against Swedish Public Health Agency guidelines (FoHMFS 2014:13) for bedrooms and other rooms — directly after each measurement. SAVE & EXPORT All measurement history is stored locally. Export individual measurements as CSV. 24-hour logs and insulation measurements export as PDF reports. IMPORTANT Bullerkollen is an indicative meter and does not meet the requirements of SS-EN 61672-1 for Class 1 or Class 2 sound level meters. Do not use this app as the basis for regulatory reports or inspection protocols — use a calibrated meter and consult an acoustics professional when required. Bullerkollen is developed by B&L Lund AB, a consulting firm specialised in acoustics, noise and vibration.

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Better device support

Version 1.4.0

The developer, B&L Lund AB, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    B&L Lund AB
    Size
    24.6 MB
    Category
    Utilities
    Compatibility
    Requires iOS 16.6 or later.
    • iPhone
      Requires iOS 16.6 or later.
    • iPad
      Requires iPadOS 16.6 or later.
    • Mac
      Requires macOS 13.5 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and Swedish
    Age Rating
    4+
    Copyright
    © B&L Lund AB
  • Privacy Policy

    • More by B&L Lund AB

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