What is VibraTools?
Web tool for audio signal generation. 4 waveforms (sine, square, triangle, sawtooth), real-time mixing, file export.
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Frequently Asked Questions
Last updated: May 12, 2026
General
Is it really 100% free?
Yes. No payment, no advertising, no usage limits.
Do I need to create an account?
No. Direct access to all features.
Is VibraTools multilingual?
FR / EN / ES. Automatic detection from the browser. Manual URL: /fr, /en, /es.
Audio features
What waveform types can be generated?
Binaural (two frequencies, one per stereo channel) · isochronic (rhythmic pulsations) · monaural (two frequencies in mono) · pure (single frequency). Multiple generators simultaneously.
Why headphones for binaural?
Binaural sends a different frequency on each stereo channel. Without headphones, channels mix in the air and L/R separation disappears.
Why sine as the default?
Sine = single frequency, no harmonics. Square / triangle / sawtooth add harmonics (integer multiples of the fundamental).
What are Delta, Theta, Alpha, Beta, Gamma bands?
EEG spectral bands: Delta 0.5–4 Hz · Theta 4–8 Hz · Alpha 8–13 Hz · Beta 13–30 Hz · Gamma ≥ 30 Hz.
What do chakra and Solfeggio frequencies represent?
Chakras: 396, 417, 528, 639, 741, 852, 963 Hz. Solfeggio: 396, 417, 528, 639, 741, 852 Hz. Clickable presets.
How to use phase, balance and octaves in the Free Generator?
Phase (0° to 360°): available in all modes. Time-shifts the second signal in binaural/monaural/isochronic modes, or the single signal in pure mode. In monaural, it shifts the beat envelope position. L-R Balance (−1 to +1): available in binaural, monaural and pure modes. Adjusts relative channel amplitude using a constant-power formula (stable perceived volume at any position). A minimum clamp (5%) preserves the binaural beat even at extreme values. −8ve / +8ve buttons: shift the base frequency by one octave (÷2 / ×2), useful for exploring 429.62 Hz at different octaves (53.70 Hz, 214.81 Hz, 859.24 Hz…).
432 / 429.621 / 396 Hz converter
Difference between 440, 432 and 429.621 Hz?
440 Hz: ISO 16:1975 standard. 432 Hz: Pythagorean tuning derived from C at 256 Hz. 429.621 Hz: value calculated by Prof. Marc Henry (Strasbourg).
Where does 429.621 Hz come from?
Prof. Marc Henry (chemist, Strasbourg). H₂O molar mass 18.015268 Da → E = mc² → f = E/h ≈ 4.057×10²⁴ Hz → descent of 73 octaves (÷ 2⁷³) → 429.621 Hz.
How do I convert an audio file?
Drag and drop (MP3, WAV, OGG, FLAC, MP4) into the Converter block. Target: 432, 429.621 or 396 Hz. Format: WAV or MP3 192 kbps. Web Audio API resampling, duration +1 to +11%.
How do I fuse a 429 Hz song with a Vibratools recording?
In the Converter block, open the "Vibratools Fusion" sub-section. Drop (1) your song already converted to 429 Hz (WAV) and (2) your Vibratools recording. Choose the level (from 1 to 100%), the format (lossless WAV or 320 kbps MP3), then "Fuse". The output keeps the exact song duration.
Why record the Vibratools frequency for the same duration as the song?
So the two tracks overlay from start to finish. If durations differ, the output always follows the song duration: a longer recording is cut, a shorter one is padded with silence. The pitches (429 Hz and the recorded frequency) remain intact, with no change of tone.
Tuner
How to use the Tuner ?
From the console: open the Tuner block, click Enable Microphone, accept the permission, play a note. From the full page (⬡): same process. Choose the A reference (440/432/429.621), a tuning preset (Standard/Drop D...), then play. The built-in pitch pipe generates target notes for tuning by ear. 100% local processing — no audio is recorded or sent.
What are the tuning presets (Standard, Drop D, Open G, DADGAD) ?
Standard (E A D G B E) = universal tuning. Drop D (D A D G B E) = low E dropped one tone (rock/metal). Open G (D G D G B D) = open tuning (slide/blues). DADGAD (D A D G A D) = modal tuning (celtic/folk).
What are the 3 A₄ references (440, 432, 429.621 Hz) ?
440 Hz = international ISO standard. 432 Hz = Pythagorean tuning derived from C at 256 Hz. 429.621 Hz = water frequency calculated by Prof. Marc Henry (H₂O molar mass → E=mc² → f=E/h → 73 octaves → 429.621 Hz).
What are the ⬡ and ⟐/⊟ buttons for ?
⬡ (Tuner block only): opens the tuner as a dedicated full-screen page. ⟐/⊟ (all blocks): expands the block to full width in the console, hiding other blocks. Click again to return to normal view.
How does the Presets selector work ?
It groups the 4 blocks Chakras, Library, Harmonics and Cosmic Cycles into tabs. Select a tab to display the corresponding block. This frees up space in the console.
Export and technical
How do I export audio and video?
Bottom bar. AUDIO: MediaRecorder API → WebM. VIDEO: getDisplayMedia() (console screen + audio) → WebM.
Privacy
What data is collected?
None. No cookies, no tracking, no analytics. Settings stored in the browser's localStorage. Conversion 100% client-side.
How do I contact support?
Technical sources
These sources concern the mathematical derivation of 429.621 Hz and the bibliographic credibility of the author.