This 90-minutes brown noise audio offers a deep, warm, and grounding sound with reduced high frequencies.

Brown noise is widely used to support deep sleep, calm the nervous system, and reduce anxiety or restlessness.

The 174 Hz frequency is softly embedded into the noise. It is not audible as a tone, but felt subtly and is often associated with comfort and physical relaxation.

Ideal for sleep, deep relaxation, meditation, stress reduction, ADHD support, and tinnitus masking.

For best results, listen at a low, steady volume and disable bass boost or sound effects.

This 90-minutes pink noise audio delivers a smooth and natural sound with reduced high-frequency intensity.

Pink noise is commonly used for relaxation, stable sleep environments, and gentle focus support.

The 432 Hz frequency is quietly blended into the noise and remains below conscious hearing, designed to be felt subtly rather than heard.

Ideal for sleep, relaxation, meditation, stress reduction, and ASMR listening.

For a clean and natural sound, listen at low volume and turn off bass enhancement.

This 90 minutes black noise audio is built around extremely low-frequency sub-bass noise, creating a minimal and deep sound environment.

Black noise is designed to be more felt than heard and is often used for grounding, deep rest, and sensory calm.

Any frequency included is integrated below conscious perception and blends into the sub-bass texture.

Ideal for deep relaxation, sleep, grounding, and ASMR low-frequency experiences.

Always listen at very low volume and turn off bass boost, loudness, or any audio enhancement features.