Frequency Analyzer vs SciMath Keyboard

Transform your device into a professional-grade audio analysis suite with industry-leading 32-bit float processing, precision calibration tools, and comprehensive visualization 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 VISUALIZATION MODES • High-resolution spectrum analyzer 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 • Synchronized video recording with audio analysis overlay • Event tracking system with timestamped notes • Playback synchronization 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 optimization • 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 meters. EULA: https://frequency-analyzer.com/terms-and-conditions/

SciMath is a keyboard for iOS and iPadOS that gives you the symbols science, mathematics, and technical writing actually need - without copying from character maps, switching apps, or settling for approximations. Every symbol is a proper Unicode character. It copies, searches, and renders correctly in every app that supports Unicode text. ONE-TIME PURCHASE. No subscription. No in-app purchases. No advertising. Ever. FOUR LAYERS ABC - Full QWERTY with extended diacriticals on long-press. French, German, Scandinavian, Spanish, Eastern European, and scholarly Latin variants. 123 - Numbers and punctuation. Long-press any digit for its superscript and subscript form. #+= - Brackets, operators, and currency symbols. sci - Scientific and mathematical symbols: Operators: degree, plus-minus, multiply, divide, approximately, not-equal, less-or-equal, greater-or-equal, square root, infinity Calculus: summation, integral, partial derivative, nabla, delta, h-bar, Angstrom, micro, ohm Logic and sets: pi, therefore, for-all, proportional, element-of, prime, perpendicular, and more Long-press sci keys for additional symbols: element-of opens not-element, subset, superset, union, intersection, empty set, and more. FOOTNOTE SYMBOLS The complete traditional footnote sequence for mathematical and legal writing, where superscript numbers would be confused with exponents or indices. KEY FLASH Toggle key flash in the SciMath app. When on, keys brighten immediately on contact with no delay, visible in direct sunlight. When off, standard iOS balloon previews appear. TRACKPAD MODE Hold the spacebar to move the text cursor precisely without tapping in the text. iPAD Pull-down secondary characters on every key. Full-width layout with more keys per row. Hide keyboard button. PRIVACY SciMath does not request Full Access and never will. It never logs keystrokes, never makes network requests, and contains no analytics or telemetry of any kind. Nothing you type ever leaves your device. THE SCIMATH APP A built-in composition workspace for building expressions at your own pace, then copying or screenshotting the result against a clean background. Light, dark, and system appearance modes.