Decibel & Frequency Meter

Transform your device into a professional-grade audio analysis suite with industry-leading 32-bit float processing, precision calibration tools, and comprehensive visualisation capabilities.
PROFESSIONAL ACOUSTIC MEASUREMENT
• Real-time FFT analysis with configurable window sizes up to 4096 points
• Reference SPL measurement with calibrated sound pressure level monitoring
• Professional microphone correction with frequency-specific calibration curves
• Reference tone calibration for precise frequency measurements
• Configurable time averaging (0-1000ms) for stable, accurate readings
• Industry-standard weighting filters: dBA, dBC, dBZ, and linear magnitude
• Multiple window functions: Hanning, Hamming, Blackman
ADVANCED VISUALISATION MODES
• High-resolution spectrum analyser with peak detection
• Real-time waveform display
• Professional spectrogram
• Octave band analysis
• Amplitude tracking over time
• Total level monitoring with min/max/average statistics
POWERFUL RECORDING & ANALYSIS
• High-quality 32-bit float audio recording and playback
• Synchronised video recording with audio analysis overlay
• Event tracking system with timestamped notes
• Playback synchronisation with all recorded events and measurements
• Location mapping for environmental noise surveys
• Export capabilities: WAV audio, CSV data, high-resolution images and videos
PRECISION DECIBEL MEASUREMENT
• Calibrated SPL measurements with reference level adjustment
• Real-time dB monitoring with peak hold functionality
• Statistical analysis: Leq, Lmax
• Configurable time averaging (0-1000ms)
• Frequency-weighted noise exposure calculations
• Exposure calculator for NIOSH and OSHA
IDEAL FOR PROFESSIONALS
• Acousticians and audio engineers
• Environmental noise consultants
• Musicians and sound designers
• Room acoustics optimisation
• Industrial noise monitoring
• Educational and research applications
• Live sound reinforcement
• Building acoustics assessment
Download now and unlock the full spectrum of acoustic measurement capabilities.
DISCLAIMER
This is a consumer application designed for general audio analysis and educational purposes. It is not a certified measurement instrument and should not be used where legally compliant or certified measurements are required. For professional acoustic assessments requiring traceable calibration or regulatory compliance, we recommend using an external calibrated measurement microphone with certified sound level metres.
EULA: https://frequency-analyzer.com/terms-and-conditions/