About Synchra

Synchra delivers scientifically-backed binaural beats for focus, relaxation, and consciousness exploration. Our precision audio technology helps modern minds optimize their cognitive states through carefully crafted soundscapes.

What Are Binaural Beats?

Binaural beats occur when two slightly different frequencies are played in each ear. Your brain processes the difference between these frequencies, creating a third "phantom" tone that can influence your brainwave activity.

For example, if your left ear hears 200Hz and your right ear hears 206Hz, your brain perceives a 6Hz binaural beat. This can guide your brainwaves toward the theta state associated with creativity and meditation.

This phenomenon, called "brainwave entrainment," has been studied extensively and shows measurable effects on consciousness, focus, and relaxation.

How It Works

Two pure tones at slightly different frequencies

Delivered separately to each ear via headphones

Brain creates perception of beating rhythm

Brainwaves gradually synchronize to the beat frequency

Brainwave Frequency Bands

Delta

0.5-4 Hz

Deep sleep and unconscious healing states. Delta waves promote physical recovery, immune function, and cellular regeneration during restorative sleep cycles.

Key Benefits:

•Deep restorative sleep
•Physical healing and recovery
•Immune system boost

Usage Tip:

Use 30-90 minutes before bedtime

Theta

4-8 Hz

Hypnagogic creativity and deep meditation. Theta frequencies bridge conscious and unconscious states, facilitating insight, intuition, and emotional processing.

Key Benefits:

•Enhanced creativity and insight
•Deep meditative states
•Emotional healing

Usage Tip:

Journal insights afterward

Alpha

8-12 Hz

Relaxed alertness and flow states. Alpha waves facilitate calm focus, stress reduction, and optimal learning while maintaining conscious awareness.

Key Benefits:

•Stress reduction
•Enhanced learning
•Flow state access

Usage Tip:

Pair with Pomodoro technique

Beta

12-30 Hz

Active concentration and analytical thinking. Beta frequencies enhance cognitive performance, problem-solving, and sustained attention for demanding tasks.

Key Benefits:

•Improved focus and concentration
•Enhanced problem-solving
•Increased alertness

Usage Tip:

Use for focused work sprints

Gamma

30-80 Hz

High-level cognitive processing and conscious awareness. Gamma waves facilitate binding of information, sudden insights, and peak mental performance.

Key Benefits:

•Enhanced cognitive binding
•Sudden insights and "aha" moments
•Heightened awareness

Usage Tip:

Use for short bursts (10-20 min)

Platform Features

High-Quality Audio

Opus and AAC encoding at optimal bitrates for crystal-clear binaural beats

Loudness Normalization

LUFS-based normalization ensures consistent perceived volume across all tracks

Offline Playback

Progressive Web App with service worker caching for offline listening

Crossfade & Limiting

Smooth transitions and audio limiting prevent jarring interruptions

Noise Layers

Pink, brown, and white noise options to mask environmental distractions

Smart Timers

Gentle fade-out timers help transition naturally between activities

Usage Guidelines & Tips

Getting Started

→Use closed-back headphones for best isolation
→Set volume to comfortable level - louder isn't better
→Consistency matters more than intensity
→Start with shorter sessions and build up
→Pink noise can help mask distractions

Advanced Tips

→Practice regular sleep hygiene with delta frequencies
→Stack theta→delta frequencies for sleep preparation
→Hydrate well, especially with higher frequencies
→Take breaks between extended sessions
→Track your responses in a journal

Recommended Sessions

Deep Focus 45

Extended focus session with beta entrainment

Duration:45 minutes

Sequence:

beta35m
alpha10m

Lucid 30

Pre-sleep lucidity induction with theta bridge

Duration:30 minutes

Sequence:

theta20m
delta10m

Calm Reset 10

Quick stress relief with alpha waves

Duration:10 minutes

Sequence:

alpha10m

Technical Implementation

Audio Processing

• FFmpeg transcoding with -16 LUFS normalization
• Opus (128kbps) and AAC (192kbps) formats
• Web Audio API with dynamics compression
• Gapless playback and crossfade transitions
• Real-time waveform visualization

Platform Stack

• Next.js 14 with App Router
• TypeScript and Tailwind CSS
• Zustand state management
• Service Worker caching
• Vercel deployment optimization

Frequently Asked Questions

Do I need special headphones?

Closed-back headphones work best as they provide isolation and prevent the binaural effect from being compromised by external sounds. Standard headphones or earbuds will work fine.

How long should I listen?

Start with 15-30 minute sessions and gradually increase. Delta frequencies can be used for longer periods during sleep, while gamma should be limited to 10-20 minutes.

Can I use this while working?

Yes! Alpha and beta frequencies are designed for focus and productivity. Use our Focus category tracks during work sessions.

Is it safe?

Binaural beats are generally safe for healthy individuals. Avoid use if you have epilepsy, heart conditions, or are pregnant. Consult a physician if you have concerns.

Why does the volume seem different between tracks?

All tracks are normalized to -16 LUFS for consistent perceived loudness. Enable the normalization feature in player settings for the best experience.

Synchra

Built for the modern mind seeking precision audio experiences.

Start Listening