おすすめ設定
| 設定 | 値 |
|---|---|
| ビート周波数 | 40Hz(ガンマ) |
| キャリアトーン | 200〜400Hz(快適さで選択) |
| セッション時間 | 15〜30分 |
| 音量 | 快適な会話レベル |
| ヘッドホン | 必須 — うなりはバイノーラルにのみ存在 |
この設定は バイノーラルビート生成器 で行い、必ずヘッドホンを — うなりは左右の耳がそれぞれのトーンを受け取るときにのみ生まれます。
40Hz研究が示すこと・示さないこと
盛り上がりの発端はMITの研究です。40Hzの点滅光と音にさらされたマウスでガンマリズムの回復とアミロイド斑の減少が見られました。ヒトでのガンマ感覚刺激の試験は進行中: 刺激は安全で、EEG上のガンマリズムを測定可能なレベルで同調させ、初期試験ではいくつかの指標で低下の鈍化が報告されています。これは本当に有望な科学です — ただし使われたのは精密に設計された光+音のプロトコルであって、ブラウザのトーンではありません。
40Hzのバイノーラルビートはその消費者向け近似です: 40Hz差の2つのトーンが知覚上の40Hzのうなりを生み、EEGの活動をガンマ方向へ押しやる可能性があります。それが認知的な利益を生むかは未証明。正直な位置づけ: 体験として面白く、常識的な音量なら無害、何かの治療ではない。より深い解説 — 純粋な40Hzトーンやアイソクロニックの代替を含む — は40Hz周波数ページにあります。
よくある質問
40Hzバイノーラルビートは何をするとされている?
理論はこうです: 知覚された40Hzのうなりが、注意や記憶と関連しいくつかの神経変性疾患で弱まるガンマ帯の脳活動を促す。EEG研究はリズミカルな音が刺激周波数で活動を同調させうることを示していますが、健康な人の記憶や認知を改善する証拠は依然薄いままです。
MITのガンマ刺激と同じもの?
いいえ。研究プロトコルは40Hzの点滅光と、制御された強度の40Hz振幅変調音の組み合わせを使います。バイノーラルビートはより穏やかで未検証の親戚です。体験として楽しみ、臨床効果は期待しないでください。
40Hzにはバイノーラルビートとアイソクロニックトーンのどちら?
アイソクロニックトーン(毎秒40回オン/オフするトーン)のほうが強い刺激で、スピーカーでも機能します。バイノーラルビートはより繊細でヘッドホンが必要。研究プロトコルはアイソクロニック刺激に近い形です。両方試してください — それぞれの生成器があります。
どれくらい聴けばいい?
15〜30分が研究での典型で、実践でも快適です。不快感や頭痛を感じたら中止を。てんかんのある方は、強くリズミカルな刺激を使う前に医師に相談してください。
Try Our Other Audio Tools
Online Tone Generator
Generate single tones with precise frequency control. Perfect for quick audio testing and tuning.
Multiple Tone Generator
Play multiple frequencies simultaneously with independent volume and panning controls.
Frequency Sweep Generator
Create linear or exponential frequency sweeps for speaker testing and room acoustics analysis.
Binaural Beats Generator
Generate binaural beats for meditation, focus, and relaxation. Requires headphones for proper effect.
DTMF Tone Generator
Generate telephone dial pad tones (Dual Tone Multi Frequency). Interactive touch-tone dial pad.
Online Metronome
Professional metronome with tap tempo, time signatures, subdivisions, and tempo trainer for musicians.
BPM Counter
Tap along to any song to find its tempo in beats per minute. Includes tempo markings reference.
Chord Player
Hear major, minor, diminished, and seventh chords in every key. Block chords or arpeggios.
Chord Progression Player
Hear classic progressions like I-V-vi-IV and 12-bar blues in any key at any tempo.
Online Piano
Free browser piano with 3 octaves, note names, and computer keyboard support.
Noise Generator
Generate white, pink, and brown noise for sleep, focus, tinnitus relief, and speaker burn-in.
Instrument Tuner
Reference tuning notes for guitar, bass, ukulele, violin, cello, and more at concert pitch (A440).
Subwoofer Test
Test your subwoofer with a 60-second frequency sweep (150Hz-1Hz) and individual bass test tones.
Hearing Test
Test your hearing range from 8kHz to 20kHz. Find your hearing age and compare with averages.
Solfeggio Frequencies
Ancient healing tones including 528Hz (DNA repair). For meditation, chakra activation, and spiritual healing.
Speaker Balance Test
Test stereo balance with panning control and left/right channel testing. Perfect for speaker setup.
Speaker Phase Test
Check speaker wiring polarity by comparing in-phase and out-of-phase test signals.
Audio Latency Test
Measure your Bluetooth or system audio delay in milliseconds with a click-and-flash sync test.
Spectrum Analyzer
Real-time frequency analysis of your microphone input with a live log-frequency display.
Decibel Meter
Measure approximate sound levels with your microphone - live dB with min/avg/max tracking.
Mic Test
Check your microphone in seconds: live waveform, level meter, and record-and-playback check.
Interval Ear Trainer
Learn to recognize musical intervals by ear with quiz mode, score tracking, and song mnemonics.
Pitch Pipe
Chromatic pitch pipe with all 12 notes across 3 octaves. Perfect for singers, choirs, and a cappella groups.
Shepard Tone
Experience the auditory illusion of an infinitely ascending or descending tone. Mind-bending psychoacoustic phenomenon.
Mosquito Tone
Can you hear the mosquito tone? High-frequency test (15-20kHz) that only young people can hear. Find your hearing age!
Soundscape Builder
Create relaxing ambient soundscapes with singing bowls, nature sounds, and binaural beats.
Fix My Speaker
Three sound modes to clean a muffled speaker: 165 Hz water eject, dust-shaking sweeps, and vibration.
Water Eject Sound
Push water out of a wet phone or watch speaker with a pulsed 165 Hz tone - the same method Apple Watch uses.
Dog Whistle
Adjustable high-frequency whistle (8-22 kHz) for dog training - clearly audible to dogs, silent to most adults.
Isochronic Tones
Rhythmic pulsed tones across delta to gamma ranges. Stronger than binaural beats and works without headphones.
Perfect Pitch Test
Name 12 random notes with no reference tone and find out if you have absolute pitch or great pitch memory.
Vocal Range Test
Sing your lowest and highest notes and get your range plus voice type - bass to soprano. Mic-based, nothing uploaded.
Hearing Age Test
Find the highest frequency you can hear (8-20 kHz) and see how old your ears test. Takes one minute.
Vocal Remover
Instant karaoke via center-channel cancellation - free, unlimited, and processed locally.
Voice Recorder
Record from your microphone and download as WAV - no signup, nothing uploaded.
Volume Normalizer
Normalize any file to a LUFS target with true-peak protection instead of silent clipping.
Drum Machine
16-step beat maker with synthesized 808-style drums, swing, and shareable pattern links.
Audio Analyzer / LUFS Meter
Drop a file and get integrated LUFS, true peak, RMS, and a waveform - measured locally, nothing uploaded.
Chromatic Tuner
Microphone tuner with a cents needle - play any note on any instrument and tune to ±5 cents.
Headphone Test
Five-minute headphone checkup: channels, wiring polarity, bass and treble reach, and driver distortion.
Surround Sound Test
Send noise to each 5.1 channel - fronts, center, surrounds, and subwoofer - and catch swapped or dead speakers.