What are SereneSynth focus protocols?

SereneSynth protocols are structured sound sessions built from defined acoustic conditions, research findings, and practical listening routines. They offer automated interval sequencing (such as 25-minute focus and 5-minute break blocks) with calibrated sound conditions including quiet, white noise, pink noise, brown noise, and binaural conditions.

How does brown noise support concentration?

Brown noise provides a deep acoustic spectrum with a -6 dB per octave power falloff (1/f²), attenuating sudden environmental acoustic distractions and creating a steady, low-distraction auditory background.

What acoustic conditions are investigated in the ADHD focus protocol?

The ADHD focus protocol prioritizes research-informed conditions: White Noise (primary evidence-supported condition), Pink Noise, 15-Hz Binaural (400 Hz left / 415 Hz right / 15 Hz beat / 407.5 Hz carrier — preliminary ADHD-specific human evidence for subjective studying performance), Quiet (reference), 40-Hz Binaural (experimental general-attention condition; not ADHD-specific), and Brown Noise (exploratory).

What acoustic conditions are included in the Student focus protocol?

The Student focus protocol focuses on core conditions: Quiet (primary reference), White Noise (comparison condition), and Pink Noise (comparison condition), with clearly labeled experimental conditions including 40-Hz Binaural (320 Hz left / 360 Hz right / 40 Hz beat / 340 Hz carrier), 15-Hz Binaural, and Brown Noise.

Do binaural beats require stereo headphones?

Yes. Binaural beats require stereo headphones because isolated frequencies must be delivered to each ear separately for the brainstem's superior olivary complex to compute the perceptual interaural difference frequency.

Research-Informed Session

ADHD Focus Protocol (90 Minutes)

A research-informed sound session for users interested in acoustic conditions investigated in ADHD and attention research. This is not a medical treatment.

Structured Productivity Format: 90 Minutes

Default Interval Sequence: 25 min Focus → 5 min Break → 25 min Focus → 5 min Break → 25 min Focus (Total: 90 minutes). Also supports 15/5 and 30/5 structures.

The 90-minute structure is a practical productivity and listening routine design, not a clinically validated intervention duration.

Investigated Acoustic Conditions & Evidence Tiers

1. White Noise Primary Evidence-Supported

Primary evidence-supported condition for ADHD and elevated-attention research contexts.

2. Pink Noise Evidence-Supported

Evidence-supported condition, with more limited evidence than white noise.

3. 15-Hz Binaural Beat Preliminary ADHD Evidence

Preliminary ADHD-specific human evidence for subjective studying performance.

                  Left: 400.0 Hz | Right: 415.0 Hz | Beat: 15.0 Hz | Carrier: 407.5 Hz (Frequency Verified • Stereo Headphones Required)
                

4. Quiet Reference Condition

Quiet baseline control condition.

5. 40-Hz Binaural Beat Experimental (Not ADHD-Specific)

Experimental human attention condition; not ADHD-specific.

6. Brown Noise Exploratory Condition

Exploratory acoustic condition featuring continuous -6 dB/octave Brownian power spectral density.