Frequency Analyzer vs Tone generator for PTA

See exactly what you're hearing. Frequency Analyzer: SpectraLab turns your iPhone into a precision audio analysis toolkit. Measure live frequency content, generate test tones, and visualize sound in real time. ANALYZE Point your phone at any sound source and see the dominant frequency instantly, in Hz, with a clean live readout. Perfect for tuning instruments, diagnosing hums and buzzes, checking speaker response, or just satisfying your curiosity about the sound around you. SPECTROGRAM Watch sound unfold over time with a vivid, color-coded spectrogram. Spot patterns, harmonics, and anomalies that a single number can't show you. GENERATOR Produce precise test tones and sweeps on demand. Sine, square, and more, with fine control over frequency and amplitude. Useful for speaker testing, hearing checks, room acoustics, and calibration. LIBRARY Save your measurements and exports, organize them with custom labels, search and filter by type, and quickly preview or share anything you've captured. FREE TO START The core analyzer, generator, and library are free to use. No account required. GO PRO Upgrade for larger FFT sizes, every window and weighting function, full-length spectrogram history, unlimited saved presets and export history, noise threshold alerts, and CSV/PDF report export. Try Pro free for 7 days. Whether you're a musician tuning by ear, an audio hobbyist, or just someone who wants to know "what frequency is that?". SpectraLab gives you a clear, accurate answer in seconds. Subscription pricing: - Monthly and Yearly plans available, each with a 7-day free trial - Payment charged to your Apple ID account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period - Manage or cancel your subscription anytime in your Apple ID account settings - Privacy Policy and Terms of Use available in the app and on our website

Tone Generator는 0.1dB 단위로 정밀하게 조절 가능한 순음(pure tone) 생성 어플리케이션입니다. 주요 기능 • 125Hz~8000Hz 표준 청력검사 주파수 지원 • 0.1dB 단위의 정밀한 강도(레벨) 조절 • 주파수별 독립적인 레벨 저장 및 자동 복원 • 연결된 헤드폰 모델별 Preset 저장/불러오기 • 생성된 파형(waveform) 실시간 시각화 이 앱은 청력검사 연구 및 캘리브레이션 목적의 도구로 제작되었으며, 의료기기 진단 용도가 아닙니다. Tone Generator is a precision pure-tone generator app with 0.1 dB level resolution. Key Features • Standard audiometric frequencies from 125Hz to 8000Hz • Precise 0.1 dB intensity control • Independent level memory per frequency, automatically restored • Save/load presets per connected headphone model • Real-time waveform visualization This app is designed as a research and calibration tool for hearing-related studies. It is not intended for medical diagnostic use.