Frequency Analyzer

Frequency Analyzer is a professional audio analysis tool for real-time measurement and visualization. It delivers real-time FFT with configurable window sizes up to 4096 points, calibrated SPL with reference level adjustments, and precise microphone correction using frequency-specific calibration curves. It supports multiple weighting filters (dBA, dBC, dBZ, and linear) and common window functions (Hanning, Hamming, Blackman), enabling accurate acoustic measurements across environments. The 32-bit float processing and high-precision recording ensure fidelity for professional work, with synchronized video overlay and event tagging.

The app shines in visualization and data export: spectrum, waveform, spectrogram, octave-band analyses, time-averaged statistics, and exposure calculations for NIOSH/OSHA. It includes location mapping for noise surveys, timestamped notes, and export options for WAV audio, CSV data, high-resolution images, and video. Designed for acousticians, environmental consultants, musicians, and researchers, Frequency Analyzer is not a certified instrument and should be complemented with calibrated equipment for regulatory compliance.