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Sound Analyzersoundanalyzerai.com

PROFESSIONAL CLIENT-SIDE AUDIO WORKSTATIONS

16,384 FFT Bins
ISO 266 / IEC 61672
Sub-Cent HPS Pitch
Zero Server Uploads
Visualizer Studio16,384 Bins FFT

Máy Phân Tích Phổ FFT 16K

0.1 Hz Resolution • Log/Linear Freq • Peak Hold

Phổ tần số 16.384 bin với thang đo logarit và tuyến tính cùng tính năng giữ đỉnh.

FFT Spectrum AnalyzerAudio Frequency AnalyzerdBFS MeterHarmonics
Master StudioGuide
Visualizer Studio60 FPS Waterfall

Biểu Đồ Thác Nước 60 FPS

6 Colormaps • Time-Frequency • Voiceprint

Bản đồ nhiệt thời gian - tần số mật độ cao với 6 bảng màu khoa học.

Audio SpectrogramWaterfall HeatmapSpectral TimbreVoiceprint
Master StudioGuide
Visualizer StudioISO 266 / IEC 61260

RTA Dải 1/3 Octave ISO 266

31 ISO Fractional Bands • 20 Hz – 20 kHz

Phân tích 31 dải tần số tiêu chuẩn ISO 266 để cân chỉnh âm học phòng nghe.

1/3 Octave RTARoom Acoustic TuningISO 266 StandardSpeaker Calibration
Master StudioGuide
Visualizer StudioZero-Crossing Trigger

Máy Hiện Sóng Âm Thanh

Time-Domain Zoom • Phase Jitter Stabilization

Hiển thị dạng sóng miền thời gian với kích hoạt điểm cắt 0.

Audio Oscilloscope OnlineWaveform VisualizerEdge TriggeringPhase Alignment
Master StudioGuide
Visualizer StudioX-Y Vector Scope

Goniometer Âm Thanh Nổi

Phase Correlation Meter • Mono Compatibility

Phạm vi vector Lissajous X-Y và máy đo tương quan pha âm thanh nổi.

Stereo GoniometerLissajous Vector ScopePhase Correlation MeterMono Compatibility
Master StudioGuide
Musical PitchSub-Cent HPS Algorithm

Bộ Chỉnh Cao Độ Hài Âm

A0–C8 Range • Parabolic Peak Interpolation

Theo dõi cao độ nốt nhạc và giọng hát thời gian thực với độ chính xác dưới cent.

Online Instrument TunerMusical Note DetectorCents Pitch MeterHPS Algorithm
Pitch TunerGuide
Environmental NoiseIEC 61672-1 Standard

Máy Đo Độ Ồn Leq

dBA / dBC Weighting • Statistical L10, L50, L90

Khảo sát mức âm thanh liên tục chuẩn IEC 61672 với thang đo dBA, dBC.

Leq Noise MeterdBA dBC Decibel MeterAcoustic Survey LoggerOSHA Sound Exposure
Noise MeterGuide
Signal LabDual-Engine Synth

Bộ Tổng Hợp Tông & Tiếng Ồn

Sine / Pink / White / Brown • 20 Hz – 20 kHz Log Sweep

Tạo sóng sin thuần, quét tần số và tiếng ồn trắng, hồng, nâu đã hiệu chuẩn.

Online Tone GeneratorSine Wave GeneratorPink Noise MachineFrequency Sweep
Tone SynthGuide
DiagnosticsGround Loop Sentry

Máy Dò Tiếng Ù Điện Lưới 50/60Hz

50/60 Hz Fundamental • 100/120 Hz Harmonics

Tự động chẩn đoán vòng lặp tiếp địa và tiếng ù điện xoay chiều 50Hz/60Hz.

Ground Loop Hum Detector50Hz Hum Remover60Hz Buzz DiagnosticCoil Whine Sentry
Máy Dò Tiếng Ù Điện Lưới 50/60HzGuide
DSP FiltersBiquad Filter Lab

Bộ Thử Nghiệm Bộ Lọc DSP Trực Tiếp

High-Pass • Low-Pass • Band-Pass • Notch

Thử nghiệm các bộ lọc số biquad tương tác với đồ thị đáp ứng tần số trực tiếp.

Web Audio DSP FilterHigh Pass Filter OnlineNotch Filter ToolAudio Equalizer Sandbox
Bộ Thử Nghiệm Bộ Lọc DSP Trực TiếpGuide
TRÍ TUỆ ÂM THANH & TRẠM DSP

Analyze Audio & Sound in Real Time

Professional browser-native audio spectrum visualizer, 60 FPS waterfall spectrogram, sub-cent pitch tuner, and IEC 61672 sound level meter. 100% private client-side DSP.

Master StudioGuides
AUDIO ANALYSIS & TOOLS FAQ

Frequently Asked Questions on Audio Analysis & Frequency Measurement

Answers to common questions about analyzing sounds, frequency detectors, and audio analyzers.

1How can I analyze a sound?
To analyze a sound, route audio into an audio analyzer (via microphone, line-in, or audio file). The tool applies a Fast Fourier Transform (FFT) algorithm to break down complex audio waves into individual frequency components, displaying peak frequencies, decibel loudness (dBA/dBC Leq), harmonic overtone series, and phase alignment in real time.
2What is an audio analyser?
An audio analyzer is an electroacoustic measurement tool or software application designed to quantify and visualize acoustic characteristics—including frequency spectrum (20Hz–20kHz), total harmonic distortion (THD), sound pressure levels (SPL/Leq), time-domain waveforms, and stereo phase coherence.
3How to check the frequency of sound?
You can check sound frequency by using a real-time FFT spectrum analyzer or pitch detector. Peak frequency markers pinpoint the exact frequency in Hertz (Hz) with the highest acoustic energy, while harmonic trackers identify musical notes and partials.
4Is there a real-time spectrum analyzer for audio?
Yes. Sound Analyzer provides a free online real-time 16,384-bin FFT spectrum analyzer with 60 FPS GPU-accelerated rendering, logarithmic/linear scaling, peak hold memory, and harmonic overtone cursors running directly in your web browser.
5What does 250 Hz sound like?
250 Hz is a warm, low-midrange frequency that provides acoustic 'body' and fullness to audio. It sits close to Middle C (C4 = 261.6 Hz) and represents the fundamental vocal pitch of deep male voices, the low E and A string resonance of acoustic guitars, and the fundamental body of snare drums.
6What is the best app for frequency analysis?
Sound Analyzer is one of the best free frequency analysis web apps because it works instantly across desktop, tablet, and mobile devices without installation. It features 16,384 FFT bins, fractional 1/3 octave band RTA, and sub-cent Harmonic Product Spectrum pitch detection.
7What tool detects frequency?
Frequency is detected using tools such as Fast Fourier Transform (FFT) spectrum analyzers, digital frequency counters, Harmonic Product Spectrum (HPS) pitch detectors, and Real-Time Analyzers (RTA).
8What is some free audio analyzer software?
Notable free audio analyzer software includes Sound Analyzer (browser-native 10-tool suite), Room EQ Wizard (REW for acoustic room optimization), Audacity (open-source audio editor with spectral analysis), and Sonic Visualiser (detailed musical spectrograms).
9Is there an online sound frequency analyzer available?
Yes, Sound Analyzer's online frequency analyzer is 100% free and browser-based. It leverages the W3C Web Audio API to process live microphone inputs or uploaded audio files with zero server latency and total privacy.
10What is the best audio analyzer software?
The best audio analyzer software provides multi-dimensional measurement across time, frequency, and phase domains. Sound Analyzer's web suite includes 10 specialized workstations: FFT Spectrum Analyzer, 60fps Waterfall Spectrogram, 1/3 Octave RTA, Audio Oscilloscope, Stereo Goniometer, Harmonic Pitch Tuner, Leq Noise Meter, Tone Generator, Mains Hum Sentry, and DSP Filter Sandbox.