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.

This 90 minutes red noise audio emphasizes very low frequencies, creating a deep and grounding sound atmosphere.

Red noise is often associated with physical relaxation and a sense of stability.

Any added frequency is integrated at a very low level and is not designed to be consciously audible.

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

Use speakers or headphones carefully at low volume and ensure bass boost is disabled.

This 90-minutes violet noise audio focuses strongly on high frequencies and creates a crisp, fine-grained sound.

Violet noise is often used for masking high-pitched disturbances and specialized focus environments.

Any frequency present is blended subtly and not intended as a distinct tone.

Ideal for concentration, sound masking, tinnitus-friendly environments, and ASMR-style listening.

For comfort and clarity, keep the volume low and disable bass boost.

This 90 minutes white noise audio provides a consistent and balanced sound across all frequencies.

White noise is often used to mask background sounds, support concentration, and create a neutral sound space for sleep and focus.

Any included frequency is softly integrated into the noise and is not intended to be heard as a tone, but felt subtly.

Ideal for sleep, studying, work, tinnitus masking, and ASMR background listening.

Use headphones or speakers at a low, comfortable volume and disable bass boost or audio enhancements.

This 90 minutes grey noise audio is perceptually balanced to sound even across the hearing range.

Grey noise is often experienced as softer and less harsh than white noise, making it suitable for long sessions.

If a frequency is present, it blends naturally into the noise without standing out.

Ideal for sleep, deep focus, sound masking, and ASMR background use.

For optimal balance, keep the volume low and turn off bass boost.

This 90-minutes green noise audio focuses on mid-range frequencies, often described as soft, balanced, and nature-like.

Green noise is used to create a calm auditory environment without sharp highs or heavy lows.

Any frequency included is subtly embedded and meant to be felt rather than heard.

Ideal for relaxation, focus, sleep, mindfulness, and ASMR-style calm listening.

Use at a comfortable volume and disable bass boost or equalizer enhancements.

This 90 minutes brown noise audio creates a deep, warm, and steady sound environment for long listening sessions.

Brown noise emphasizes lower frequencies and is commonly used to reduce distractions, calm the nervous system, and support deep sleep and relaxation.

If a frequency is included, it is blended subtly into the noise. The frequency is not meant to be consciously heard, but gently felt as part of the sound texture.

Ideal for sleep, anxiety relief, deep focus, meditation, and ASMR-style relaxation.

For best results, use a comfortable low volume and turn off bass boost or sound enhancement features.

This 90-minutes pink noise audio delivers a smoother and more natural sound than white noise, with reduced high-frequency intensity.

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

If combined with a frequency, it is blended quietly into the noise and remains below conscious hearing.

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

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