Play physically-modelled crystal singing bowl tones for all 7 chakra notes with reverb and sustain, or tune your own audio to them. Free, in your browser.
Maximum depth. Auto-pan + multi-reverb + harmonic spacers.
1D — Linear Mono Controls
Direct pitch conversion. Clean mono processing with maximum quality preservation.
Select a dimension then upload your audio
🎸
AI VOCAL REMOVER
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🤖 AI ENGINESPECTRAL · STFT · CENTER-MASK32-BIT FLOAT
🎸 AI Vocal Remover · Instrumental Maker PRO
Frequency-domain AI separation strips the lead vocal and keeps a clean instrumental. Center-panned vocals are masked in the spectral domain while bass & drums are protected. For a song that still has vocal bleed, push Vocal Removal Strength → Max (Karaoke) to fully cancel the center vocal. Stereo tracks only.
🧠 AI STUDIO · NEURAL SEPARATION PRIMARY
Real neural network (MDX-Net) — the cleanest, near-studio vocal removal. Best on desktop Chrome/Edge (WebGPU); first run downloads ~64 MB (cached), about 1–4 min per song. Automatically falls back to Fast mode if WebGPU isn't available.
— or ⚡ fast offline mode (instant, tune below) —
🎤 LEAD VOCAL · removed🎸 INSTRUMENTAL · kept
High Quality — 4096-band spectral mask. Recommended for most songs.
Upload a stereo track, then tap “Remove Vocals”.
💎 Exports as 32-bit float WAV — true lossless studio quality, no re-compression.
🎤
AI VOCAL ISOLATOR
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🤖 AI ENGINESPECTRAL · STFT · CENTER-KEEP32-BIT FLOAT
🎤 AI Vocal Isolator · Acapella Maker PRO
Keeps the center-panned lead vocal and removes the stereo instrumental using spectral center-channel extraction, with a low-cut to strip bass rumble. Works best on stereo tracks.
🧠 AI STUDIO · NEURAL SEPARATION PRIMARY
Real neural network (MDX-Net) isolates the vocal far more cleanly than DSP. Best on desktop Chrome/Edge (WebGPU); first run downloads ~64 MB (cached), about 1–4 min per song. Falls back to Fast mode automatically.
— or ⚡ fast offline mode (instant, tune below) —
🎤 LEAD VOCAL · kept🎸 INSTRUMENTAL · removed
High Quality — 4096-band spectral mask. Recommended for most songs.
Upload a stereo track, then tap “Extract Vocals”.
💎 Exports as 32-bit float WAV. Tip: run the Instrumental tool on the same song to split it into both stems.
🎚️
EQUALIZER
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🎚️
10-Band Graphic Equalizer HQ
Sculpt your sound across 10 frequency bands. Pick a preset or dial it in — rendered offline for clean, click-free results.
Presets
Upload a file to equalize
✂️
AUDIO EDITOR
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✂️
Audio Editor TOOLKIT
Trim a section, fade in/out, boost gain, reverse, normalize, and reshape the stereo image — then export lossless.
✂️ Trim & Fade
🎛️ Sound & Stereo
Channel Mode
Upload a file to edit
🌙
SLOWED + REVERB
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🌙
Slowed + Reverb Converter HQ
Creates the dreamy, melancholic "slowed + reverb" aesthetic. Pitch-preserving slowdown with custom reverb tails.
Slowed Presets
0.80xDreamyClassic slowed + reverb
0.75xUltra SlowHeavy dreamy feel
0.85xSmoothSubtle slowdown
0.70xDeep SpaceMaximum reverb space
0.90xLo-Fi ChillLo-fi texture
0.60xAbyssExtreme slow — cinematic
💡 Quality note: Playback-rate slowdown is used for maximum quality. Pitch stays proportional to speed.
Upload audio to create slowed + reverb version
⚡
SPEED UP
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⚡
Speed Up Converter HQ
Create Nightcore and sped-up versions. Pitch shifts naturally with speed.
Speed Presets
1.15xSlightly FastSubtle energy boost
1.25xEnergizedParty / workout
1.35xNightcoreClassic nightcore style
1.50xSuper NightcoreFast & high pitched
1.75xHyperspeedVery fast version
2.00xDouble Speed2x playback
Upload audio to create sped-up version
🎧
BINAURAL BEATS
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🎧
Binaural Beat Generator Pro
Different frequency in each ear — brain perceives the difference as a "beat." Stereo headphones required.
Modulates carrier tone with brainwave frequency using AM for speakers, or binaural for headphones.
δ Delta0.5–4 HzDeep Sleep · Healing
θ Theta4–8 HzMeditation · REM
α Alpha8–13 HzRelaxation · Flow
β Beta13–30 HzFocus · Alert
γ Gamma30–100 HzPeak Insight · Learning
λ Lambda100–200 HzHyper Awareness
Alpha — 10 Hz — Relaxation & Flow State
Entrainment Controls
Brainwave entrainment ready
✨
SOLFEGGIO
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✨
Solfeggio Sacred Frequencies
Ancient 6-tone scale rediscovered by Dr. Joseph Puleo. Each frequency carries specific healing vibrations.
174 HzFoundationPain Relief · Grounding
285 HzQuantum HealTissue Repair · Cellular
396 HzLiberationFear & Guilt Release
417 HzChangeUndo Negative Patterns
528 HzDNA Repair / LoveMiracle Tone · Transformation
639 HzConnectionLove · Relationships
741 HzIntuitionSolve Problems · Detox
852 HzSpiritual OrderThird Eye · Clarity
963 HzCrown / God FreqPineal Gland · Unity
528 Hz — The Love Frequency — DNA Repair & Transformation
Conversion Controls
Upload audio to convert to selected Solfeggio frequency
🧿
CHAKRA ALIGN
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🧿
7 Chakra Frequencies
Each of the 7 energy centers resonates at a specific frequency. Convert your audio to align with any chakra for energy healing.
194.18 Hz🔴 RootMuladhara
210.42 Hz🟠 SacralSvadhisthana
126.22 Hz🟡 Solar PlexusManipura
136.10 Hz💚 HeartAnahata
141.27 Hz🔵 ThroatVishuddha
221.23 Hz🟣 Third EyeAjna
172.06 Hz💜 CrownSahasrara
136 Hz — Heart Chakra (Anahata) — Love · Compassion · Healing
Chakra Conversion Controls
Upload audio to convert to selected chakra frequency
🔔
HARMONICS
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🔔
Harmonic Overtone Converter
Stacks overtone series above a base frequency. Produces bell-like, bowl-like, and orchestral harmonic textures.
Base Frequency & Series
HZ
Harmonics mode ready
🪐
PLANETARY
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🪐
Planetary Resonance Converter
Each planet's orbital frequency shifted into audible range. Based on Kepler's Harmonices Mundi and Hans Cousto's Cosmic Octave.
Select Planet / Resonance
194.18 Hz☿ MercuryIntellect · Speed
221.23 Hz♀ VenusLove · Beauty
136.1 Hz🌍 Earth (OM)Nature · Balance · OM
144.72 Hz♂ MarsAction · Drive
183.58 Hz♃ JupiterWisdom · Abundance
147.85 Hz♄ SaturnDiscipline · Structure
207.36 Hz♅ UranusAwakening · Genius
211.44 Hz♆ NeptuneDreams · Mysticism
7.83 Hz🌐 SchumannEarth Heartbeat
432 Hz⭐ Cosmic AUniversal Harmony
136 Hz — Earth Resonance — The "OM" of the Planet
Planetary mode ready
🌌
AMBIENCE
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🌌
Cosmic Ambience Converter
Wrap your audio in immersive acoustic environments using convolution-style reverb simulation.
Environment
Ambience mode ready
📡
NOISE STUDIO
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📡
Noise Generator
Pure noise generation — all types. Can run standalone or blend with uploaded audio.
Noise Type
White⬜ White NoiseEqual energy all freqs
Pink🌸 Pink Noise-3dB/octave · Natural
Brown🟫 Brown Noise-6dB/octave · Deep bass
Blue🔵 Blue Noise+3dB/octave · Bright
Violet🟣 Violet Noise+6dB/octave · Ultrabrilliant
Grey🩶 Grey NoisePerceptually flat
Noise generator ready
💎
CRYSTAL BOWL
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💎
Crystal Singing Bowl
Each note corresponds to a chakra. Physically modeled resonance with exponential decay and harmonic overtones.
Bowl Notes
256 HzC — Root 🔴Grounding · Safety
288 HzD — Sacral 🟠Creativity · Pleasure
320 HzE — Solar 🟡Power · Will
341 HzF — Heart 💚Love · Compassion
384 HzG — Throat 🔵Truth · Expression
427 HzA — Third Eye 🟣Intuition · Vision
480 HzB — Crown 💜Divine · Transcendence
Crystal bowl ready
🎛️
GENERATOR
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🎛️
4-Oscillator Pure Frequency Generator
Build complex tones from scratch. No upload needed. Mix up to 4 oscillators with independent frequency, detune, pan, and waveform.
Master Output
Generator ready — no audio upload needed
⚙️
SETTINGS
🎵
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🔊 Audio Engine
WAV Export Bit Depth
32-bit float = studio lossless (largest files). 24-bit = high-res PCM. 16-bit = smallest, CD quality.
📋 Processing History
⌨️ Keyboard Shortcuts
Space Play / Pause
L Toggle Loop
M Mute / Unmute
Esc Stop & Close
← Seek -5s
→ Seek +5s
↑↓ Volume
Ctrl+S Download Last
ℹ️ About FrequencyWorld
VERSION
3.0.0
ENGINE
Web Audio API · 32-bit Float
PRIVACY
100% Client-Side · No Upload
📖
RESEARCH BLOG
📖
FrequencyWorld Research Blog
Deeply researched articles on sound healing, frequency science, and the neuroscience of music — honest looks at what the evidence says.
🤖 AI VOCAL SEPARATION
Warming up the AI engine…
LEAD VOCALextracting…
INSTRUMENTALkeeping ✓
0%
Loading audio into AI engine
Analyzing frequency spectrum (STFT)
Detecting & isolating center-panned vocals
Masking vocal · protecting bass & drums
Reconstructing instrumental (overlap-add)
CONVERTING
Processing audio…
🎧
Use headphones for the best experience — Binaural beats, 8D audio, and spatial effects require stereo headphones.
· Binaural beats will not work through speakers · Volume at 50–70% recommended