Create custom binaural beats and Solfeggio frequencies online. Free brainwave entrainment tool for meditation, focus, and deep relaxation. No download needed.
AI Generation Prompt
Technical Specification: Online Binaural Beats & Solfeggio Frequency Generator
Overview
A premium, client-side, browser-based web application that uses the Web Audio API to generate high-fidelity binaural beats, isochronic tones, and Solfeggio frequencies. The app provides a user-friendly interface for sound therapy and brainwave entrainment.
Core Features
- Dual-Oscillator Engine: Independent frequency controls for Left and Right channels.
- Preset Library: One-click configuration for standard brainwave states (Delta 0.5-4Hz, Theta 4-8Hz, Alpha 8-14Hz, Beta 14-30Hz, Gamma 30-50Hz) and Solfeggio frequencies (396Hz, 528Hz, etc.).
- Waveform Selection: Choice of Sine, Square, Sawtooth, or Triangle waves for different tonal textures.
- Audio Visualization: A Canvas-based real-time visualizer representing the mixed audio signal.
- Session Timer: Automated stop functionality for meditation or sleep sessions.
- Master Controls: Global volume slider, pan balance, and oscillation speed control.
UI/UX Design
- Aesthetic: Modern SaaS aesthetic. High-contrast, vibrant light-mode. White backgrounds (#FFFFFF), soft-grey container surfaces (#F8FAFC), and energetic cobalt blue (#2563EB) for primary actions.
- Layout:
- Header: Clean, minimal title and description area.
- Main Controller: Centered card layout containing frequency sliders, waveform toggles, and oscillator switches.
- Visualizer: Prominent Canvas element positioned below the controls for real-time waveform feedback.
- Presets Panel: A tag-cloud or grid layout for quick frequency selection.
- Animations: CSS transitions for smooth slider movement; subtle pulse animations on active buttons; fade-in/fade-out effects for the visualizer.
Technical Implementation Constraints
- Architecture: Single HTML file containing all logic, styles, and markup. Use
<script>and<style>blocks. - Storage: NO
localStorage,sessionStorage, orcookies. Use pure in-memory JS variables for state. All user settings reset on page reload. - External Assets: Use CDN-hosted Tailwind CSS for styling and Google Fonts (e.g., 'Inter') for typography.
- Compatibility: Ensure full responsiveness. The visualizer must use the
requestAnimationFrameAPI for 60FPS performance without taxing the browser. - Audio Engine: Strict use of
AudioContext. Ensure the user triggers audio with a "Start" interaction, as browser autoplay policies prevent audio from starting automatically.
Development Checklist
- Implement
AudioContextwithOscillatorNodeandGainNoderouting. - Ensure all code is contained within one file.
- Apply CSS variables for consistent light-mode theme management.
- Validate iframe safety (use
nullorigin friendly code). - Use standard
window.requestAnimationFramefor canvas animations. - Ensure buttons are accessible and labeled for screen readers.
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Files being used
Frequently Asked Questions
Everything you need to know about using this application.
What is a binaural beat generator?
A binaural beat generator creates two slightly different frequencies in each ear, allowing the brain to perceive a 'beat' that can influence brainwave states, such as focus, relaxation, or sleep.
Are Solfeggio frequencies effective?
Solfeggio frequencies are a range of specific tones often used in meditation and sound therapy, believed by practitioners to promote stress reduction and spiritual balance.
Do I need headphones to use this tool?
Yes, for true binaural beats to function, you must wear stereo headphones to ensure the left and right ear frequencies are delivered separately.
Is this tool safe to use?
Yes, but do not listen to binaural beats while driving, operating heavy machinery, or in situations that require your full physical attention.
