SPLnFFT Noise Meter 7.1

SPLnFFT is a sound level meter (noise meter) application for iOS devices such as the iPhone or iPad, offering a range of advanced features including a frequency analyzer, test signal generator, and dosimeter among others.

Endorsed by the Laborers' Health and Safety Fund of North America, this sound meter app has garnered positive reviews from reputable sources. SafetyAwakenings.com describes it as their favorite sound measurement app, while TapeOp.com praises SPLnFFT for being comprehensive and user-friendly.

For everyday use, the app's simple interface provides clear feedback on noise exposure levels, with warnings in orange or red prompting users to protect their hearing. Professional users will appreciate the app's precise measurements such as Leq, peak levels, frequency analysis, and more, all compliant with ANSI® S1.42 standards.

SPLnFFT also offers key functionalities such as real-time FFT (frequency analysis) with the ability to generate test tones like white noise or pink noise. Users can export FFT results as images and customize settings for specific needs.

Furthermore, the app emphasizes the importance of calibration for accuracy, provides guidance on using external references for calibration purposes, and recommends using quality headphones or a HiFi system for optimal sound reproduction.

Developed by a signal processing expert and continually updated for accuracy and reliability, SPLnFFT stands out as a professional tool designed to meet various sound measurement needs.