SYNTHÈSE D'OSCILLATEUR WEBAUDIO NON COMPRIMÉE

周波数トーンジェネレーター (1Hz〜20,000Hz)＆オシロスコープ

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

診断プロトコル

ディスプレイテストの実施手順 (01, 02, 03)

準備

画面の汚れを拭き取り、環境光自動調整をオフにして、ネイティブ解像度と最大リフレッシュレートに設定します。

実行

全画面モード (F11) に切り替え、コントロールバーを使って各種テストパターンを順に表示します。

評価

部屋を暗くし、異なる視野角からムラやドット抜け、残像を観察してガイドと照合します。

ハードウェアアーキテクチャ

液晶・有機ELパネル技術の比較

プロフェッショナルIPS (In-Plane Switching)

卓越した色再現性と視野角。リファレンスモニターに最適。暗所でのわずかなIPSグローが発生する場合があります。

ゲーミングIPS (Fast IPS / Nano IPS)

ゲーミング向けの高速リフレッシュレートと応答速度。ただしVAと比較して静的コントラスト比は控えめです。

VAパネル (Vertical Alignment)

引き締まった深みのある黒と高コントラスト (3000:1+)。湾曲モニターに多い一方、暗所での黒残像に注意が必要です。

OLED (有機EL) ＆ QD-OLED

自発光ピクセルによる完全な漆黒、超高速応答、無限のコントラスト。自動輝度制限 (ABL) の影響を受けます。

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

この診断機器、校正手順、ディスプレイ技術規格について知っておくべきすべての情報。

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.

次にどのテストを行うべきかお困りですか？トラブルシューティングが必要ですか？

総合診断ガイドを読む →

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