SynapSeq

Synapse-Sequenced Brainwave Generator

Open-source, text-based generator for meditation, focus, relaxation, and deep sleep through scientifically-designed sound patterns.

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Brainwave Entrainment Types

Binaural Beats

Two slightly different frequencies played in each ear create a perceived third "beat" frequency. The brain synchronizes with this beat pattern. Requires headphones for optimal effectiveness.

Monaural Beats

Mirrored frequency offsets in opposite channels create rhythmic pulses. Effective with or without headphones, promoting brainwave entrainment through auditory interference patterns.

Isochronic Tones

Single tones turned on and off at regular intervals. The brain responds to rhythmic stimulation and begins to resonate with the frequency. Works with or without headphones.

How to Get the Most Out of SynapSeq

To get the most out of SynapSeq-generated sessions, it's essential to create the right environment and use proper equipment. Brainwave entrainment is subtle. Small distractions or poor audio quality can ruin the effect. Follow these tips:

Equipment

Headphones required: Use high-quality, over-ear headphones for binaural or monaural beats. Do not use speakers. They break the phase relationships.

For isochronic tones: Speakers can work, but headphones are still recommended for a more immersive experience.

Avoid using wireless earbuds with aggressive compression or latency. They can interfere with the intended frequency response.

Environment & Timing

Quiet space: Find a calm, quiet place where you won't be disturbed.

Low light: Many users benefit from dim lighting or even complete darkness.

No multitasking: Don't browse, check your phone, or try to work. Focus inward.

Use during meditation, relaxation, before sleep, or deep work. Sessions work best when you are relaxed.

Consistency

The effects build up with consistent use. Think of it like training your brain.

Some people feel results immediately; others may need a few sessions to adjust.

If you're using stimulating frequencies (like beta or gamma), avoid close to bedtime.

Sessions work best when you are relaxed, sitting or lying down, and not in a rush.

Created for Creators

SynapSeq was designed for creators who want to build their own personalized audio experiences for meditation, relaxation, deep sleep, focus, and more.

The tool is intentionally lightweight, portable, and simple - offering an easy-to-understand syntax that gets straight to the point. No complexity, no bloat, just pure functionality for crafting the perfect brainwave entrainment sessions.

Whether you're a meditation instructor, sound therapist, or someone who enjoys creating custom soundscapes, SynapSeq gives you the power to design exactly what you need.

Design Principles

  • One way to do it
  • Clarity over cleverness
  • Intention over syntax
  • Less options, more focus
  • You write tones, not code

Live Examples

Explore and compare the three main brainwave entrainment technologies with interactive examples. Click on each method to experience the differences.

Binaural Beats

Phantom beat created by brain from two separate frequencies

Alpha Binaural Sequence

Progressive 8-11Hz demonstration (7 minutes)

0:00 7:00

How It Works

Binaural Beat Technology

Two slightly different frequencies played in each ear create a perceived third "phantom" beat that can influence brainwave activity.

Technical Process

Left ear: 250Hz carrier • Right ear: 250Hz + binaural frequency • Brain perceives: The difference frequency (8-11Hz)

Alpha Frequencies (8-14Hz)

8Hz: Deep relaxation • 9Hz: Enhanced focus • 10Hz: Classic alpha state • 11Hz: Mental clarity

Usage Tips

Use stereo headphones, find a quiet environment, ideal for study sessions, meditation, or creative work.

SynapSeq Script

sample-binaural.spsq 
# A sample binaural sequence

# Presets
alpha-one
  noise pink amplitude 30
  tone 250 binaural 8 amplitude 15

alpha-two
  noise pink amplitude 25
  tone 250 binaural 9 amplitude 15

alpha-three
  noise pink amplitude 20
  tone 250 binaural 10 amplitude 15

alpha-four
  noise pink amplitude 15
  tone 250 binaural 11 amplitude 15

# Timeline
00:00:00 silence
00:00:15 alpha-one
00:01:00 alpha-one
00:02:30 alpha-two
00:04:00 alpha-three
00:05:30 alpha-four
00:07:00 silence

Monaural Beats

Audible beating pattern from mixed frequencies

Alpha Monaural Sequence

Progressive 8-11Hz demonstration (7 minutes)

0:00 7:00

How Monaural Beats Work

Monaural Beat Technology

Two frequencies are mixed together before reaching your ears, creating an audible beating pattern that both ears hear simultaneously.

Technical Process

Mixed signal: 250Hz + (250Hz + beat frequency) • Result: Audible beating pattern • Both ears: Receive the same mixed signal

Monaural vs Binaural

Monaural: Actual beating sound • Binaural: Phantom beat created by brain • Advantage: More direct entrainment, works with speakers

Usage Tips

You will hear the actual beating rhythm as a pulsing sound. Can be used with speakers or headphones, often considered more effective for entrainment.

SynapSeq Script

sample-monaural.spsq 
# A sample monaural sequence

# Presets
alpha-one
  noise pink amplitude 30
  tone 250 monaural 8 amplitude 15

alpha-two
  noise pink amplitude 25
  tone 250 monaural 9 amplitude 15

alpha-three
  noise pink amplitude 20
  tone 250 monaural 10 amplitude 15

alpha-four
  noise pink amplitude 15
  tone 250 monaural 11 amplitude 15

# Timeline
00:00:00 silence
00:00:15 alpha-one
00:01:00 alpha-one
00:02:30 alpha-two
00:04:00 alpha-three
00:05:30 alpha-four
00:07:00 silence

Isochronic Tones

Clear distinct pulses - most direct entrainment method

Alpha Isochronic Sequence

Progressive 8-11Hz demonstration (7 minutes)

0:00 7:00

How Isochronic Tones Work

Isochronic Technology

Single tones that turn on and off at regular intervals, creating distinct pulses of sound with clear silence between them.

Technical Process

Method: 250Hz tone pulsing on/off • Example: 8Hz = 8 pulses per second • Result: Clear, distinct audio pulses

Entrainment Comparison

Binaural: Phantom beat • Monaural: Audible beating • Isochronic: Distinct pulses - most direct method

Advantages

Most effective entrainment method with clear, impossible-to-ignore pulses. Works excellently with speakers. Ideal for active meditation and focus.

SynapSeq Script

sample-isochronic.spsq 
# A sample isochronic sequence

# Presets
alpha-one
  noise pink amplitude 30
  tone 250 isochronic 8 amplitude 15

alpha-two
  noise pink amplitude 25
  tone 250 isochronic 9 amplitude 15

alpha-three
  noise pink amplitude 20
  tone 250 isochronic 10 amplitude 15

alpha-four
  noise pink amplitude 15
  tone 250 isochronic 11 amplitude 15

# Timeline
00:00:00 silence
00:00:15 alpha-one
00:01:00 alpha-one
00:02:30 alpha-two
00:04:00 alpha-three
00:05:30 alpha-four
00:07:00 silence