SPL Meter

SPL Meter is an essential Android app designed to measure sound pressure levels using your device’s microphone. This app is for indication purposes only, as results vary depending on the microphone and hardware quality of each device. Users can experience a diverse range in measurement, from 20 dB on less capable devices to over 100 dB on more advanced ones. The app's primary function is to convert detected sound into SPL values, providing a practical tool for sound measurement needs.

Advanced Features and Functionality

SPL Meter offers a robust set of features geared towards accurate sound measurement. With its analogue dial displaying maximum and minimum indicators, you gain an intuitive view of sound levels. The app provides three weighting options—A, C, or none—which filter frequencies to align with how the ear perceives loudness. Outputs can be measured in dB, dBA, or dBC accordingly. For those analyzing sound over time, SPL Meter includes a graph showing time dependence and both octave and third-octave frequency spectrums. Users benefit from either autoscale or manually adjusted Y-axis settings, allowing for a tailored experience.

User Customization and Calibration

SPL Meter emphasizes customization and accuracy through features like SPL averaging and functional buttons for clearing and pausing. An intriguing aspect is the relative button, enabling users to detect sound level differences by adjusting the current averaged value. The calibration option stands out, offering enhancements when paired with a calibrated SPL meter or known loudness source—though it remains largely indicative without official certification.

Users looking to efficiently measure sound pressure levels on Android devices will find SPL Meter a comprehensive and versatile tool, merging sophisticated features with practical usability.