SYNTHÈSE D'OSCILLATEUR WEBAUDIO NON COMPRIMÉE

Gerador de Frequência e Tons de Áudio (1Hz a 20.000Hz) e Osciloscópio

Q: How does the Online Audio Tone Generator synthesize pure frequencies?

Our tool utilizes Web Audio API OscillatorNode algorithms to compute 64-bit mathematical waveforms (sine, square, triangle, sawtooth) in real time directly inside browser RAM.

Q: What is the difference between Sine, Square, Triangle, and Sawtooth waveforms?

Sine waves contain a single fundamental frequency without harmonics. Square waves contain odd harmonics (hollow, buzzy tone). Sawtooth waves contain all integer harmonics (bright, brassy tone). Triangle waves contain soft odd harmonics.

Q: Why is a web-based tone generator better than downloadable MP3 audio files?

MP3 audio files use lossy compression that truncates sub-bass frequencies and introduces harmonic aliasing. Web Audio API generates mathematically pure, uncompressed, continuous floating-point audio.

Q: How do I use a 440 Hz tone to tune musical instruments?

440 Hz is the international pitch standard for Note A above middle C (A440). Select 440 Hz Sine wave to calibrate guitar, violin, or piano pitch.

Q: Can I generate binaural beats using dual tone generators?

Yes. By generating a 200 Hz tone in the left channel and a 210 Hz tone in the right channel, your brain perceives a 10 Hz Alpha binaural beat.

Q: What is frequency aliasing and how is it prevented during tone generation?

Aliasing occurs when synthesized frequencies exceed the Nyquist limit (half of sample rate, e.g. 22.05kHz for 44.1kHz audio). Web Audio API applies anti-aliasing bandlimited synthesis to prevent ghost harmonics.

Q: How do I test speaker resonance and room standing waves using fixed tones?

Sweep slowly through low frequencies (30Hz to 100Hz). When you hit a frequency that causes intense room vibration or volume spikes, you have identified a room acoustic standing wave mode.

Q: What is a 1kHz reference tone used for in audio engineering?

A 1kHz sine wave at 0 dBFS or -18 dBFS is the industry standard reference signal used to calibrate audio interface gain levels, broadcast meters, and tape recorder alignment.

Q: Is playing high-pitch 15kHz+ sine waves safe for my speakers and ears?

Yes, provided volume levels are kept moderate. Avoid high-volume continuous playback of ultrasonic frequencies to prevent tweeter voice coil overheating.

Q: Can I generate sub-audible infrasound tones (1Hz to 15Hz)?

Yes. Web Audio API supports synthesis down to 1Hz, though hearing or feeling these frequencies requires specialized high-excursion subwoofers.

Synthétisez des ondes pures sinusoïdales, carrées, triangulaires et en dents de scie de 1Hz à 20 000Hz avec une précision de 64 bits.

AI Frequency Recommendation Wizard

Need help picking the best frequency?

Answer 3 quick questions about your goal and environment to automatically configure the perfect frequency and waveform.

Frequency Generator

WEB AUDIO API • 64-BIT SYNTH

SINE WAVE•< 0.001% THD

48,000 Hz REAL-TIME SCOPE

440Hz

A4 - Concert Pitch Standard

Select Waveform

Target Frequency

1 Hz (Infrasound)1,000 Hz20,000 Hz (Ultrasound)

MASTER VOLUME50%

STEREO BALANCECENTER

🧠

Brainwave Focus Frequencies (Study & Deep Work)

Headphones Recommended

🎧

How Binaural Focus Beats Work:To hear binaural beats properly, listen with stereo headphones. The generator plays a slightly different carrier tone in each ear (e.g. 200 Hz Left vs 220 Hz Right), and your brain perceives the difference as a 20 Hz focus-inducing frequency.

Popular Audio Presets

PROTOCOLO DE DIAGNÓSTICO

Como Executar Este Teste de Tela (01, 02, 03)

Preparação

Limpe a superfície do monitor, desative sensores de luz ambiente e defina a resolução e taxa de atualização nativas.

Execução

Entre no modo de tela cheia (F11) e use os controles para navegar pelos padrões de teste.

Avaliação

Observe anomalias de diferentes ângulos de visão em um ambiente escuro. Consulte nossos guias para interpretar os resultados.

ARQUITETURA DE HARDWARE

Comparativo de Tecnologias de Painel

IPS Profissional (In-Plane Switching)

Precisão de cores e ângulos de visão superiores. Usado em monitores de referência. Sujeito a leve brilho IPS no escuro.

IPS Gamer (Fast IPS / Nano IPS)

Altas taxas de atualização e tempos de resposta rápidos para jogos, porém contraste estático menor que o VA.

Painel VA (Alinhamento Vertical)

Excelentes pretos profundos e alto contraste (3000:1+). Comum em telas curvas. Pode apresentar black smearing em movimento rápido.

OLED (LED Orgânico) e QD-OLED

Pixels autoiluminados proporcionam preto puro, tempos de resposta quase instantâneos e contraste infinito. Sujeito a ABL.

MATHÉMATIQUES DE SYNTHÈSE DU SIGNAL

Harmoniques d'Onde, Échantillonnage de Nyquist & Oscillateurs Purs

La génération de tonalités audio requiert une synthèse mathématique pure sans distorsion de phase.

Onde SinusoïdaleFondamentale Uniquement

Tonalité pure sans harmonique idéale pour l'étalonnage.

Onde CarréeHarmoniques Impaires

Timbre creux et percutant pour tester les amplificateurs.

Onde en Dents de ScieToutes les Harmoniques

Sonorité riche et cuivrée contenant tous les harmoniques.

Onde TriangulaireHarmoniques Douces

Tonalité douce rappelant la flûte avec atténuation rapide.

Technical FAQs & Helpful Content

Questions Fréquentes sur le Générateur de Tonalité

Tudo o que você precisa saber sobre este instrumento de diagnóstico, procedimentos de calibração e normas técnicas.

01.How does the Online Audio Tone Generator synthesize pure frequencies?

Our tool utilizes Web Audio API OscillatorNode algorithms to compute 64-bit mathematical waveforms (sine, square, triangle, sawtooth) in real time directly inside browser RAM.

02.What is the difference between Sine, Square, Triangle, and Sawtooth waveforms?

Sine waves contain a single fundamental frequency without harmonics. Square waves contain odd harmonics (hollow, buzzy tone). Sawtooth waves contain all integer harmonics (bright, brassy tone). Triangle waves contain soft odd harmonics.

03.Why is a web-based tone generator better than downloadable MP3 audio files?

MP3 audio files use lossy compression that truncates sub-bass frequencies and introduces harmonic aliasing. Web Audio API generates mathematically pure, uncompressed, continuous floating-point audio.

04.How do I use a 440 Hz tone to tune musical instruments?

440 Hz is the international pitch standard for Note A above middle C (A440). Select 440 Hz Sine wave to calibrate guitar, violin, or piano pitch.

05.Can I generate binaural beats using dual tone generators?

Yes. By generating a 200 Hz tone in the left channel and a 210 Hz tone in the right channel, your brain perceives a 10 Hz Alpha binaural beat.

06.What is frequency aliasing and how is it prevented during tone generation?

Aliasing occurs when synthesized frequencies exceed the Nyquist limit (half of sample rate, e.g. 22.05kHz for 44.1kHz audio). Web Audio API applies anti-aliasing bandlimited synthesis to prevent ghost harmonics.

07.How do I test speaker resonance and room standing waves using fixed tones?

Sweep slowly through low frequencies (30Hz to 100Hz). When you hit a frequency that causes intense room vibration or volume spikes, you have identified a room acoustic standing wave mode.

08.What is a 1kHz reference tone used for in audio engineering?

A 1kHz sine wave at 0 dBFS or -18 dBFS is the industry standard reference signal used to calibrate audio interface gain levels, broadcast meters, and tape recorder alignment.

09.Is playing high-pitch 15kHz+ sine waves safe for my speakers and ears?

Yes, provided volume levels are kept moderate. Avoid high-volume continuous playback of ultrasonic frequencies to prevent tweeter voice coil overheating.

10.Can I generate sub-audible infrasound tones (1Hz to 15Hz)?

Yes. Web Audio API supports synthesis down to 1Hz, though hearing or feeling these frequencies requires specialized high-excursion subwoofers.

Não tem certeza de qual teste executar a seguir? Precisa de ajuda com problemas?

Ler Guia Completo de Diagnóstico →

PASS

OSCILLATEUR ACTIF

Synthétiseur Web Audio 64 bits

440/Hz

WaveformPure Sine (A440)

Harmonic Distortion< 0.001% THD

Métriques de l'Oscillateur

Télémétrie Web Audio

64-Bit DSP

Synthesized Frequency

440Hz

Oscillator Type

Sine

Harmonic Roll-off

0.0dB

Réglage du Synthétiseur

Contrôles de Fréquence et d'Onde

Controls

Fréquence Cible (Hz)440 Hz

Forme d'Onde

Shortcuts

Keyboard Navigation

Hotkeys

Space

Lecture / Pause Oscillateur

+

Augmenter la Fréquence (+10Hz)

-

Diminuer la Fréquence (-10Hz)

TV users can navigate with D-Pad & Remote arrow keys