Question 1

What is echo.11?

Accepted Answer

echo.11 is a web-based wellness app offering 22 healing frequencies — binaural beats, solfeggio tones, and original compositions. It is inspired by the CIA Gateway Experience protocol declassified in 1983 and Monroe Institute research on consciousness and brainwave entrainment.

Question 2

What are binaural beats?

Accepted Answer

Binaural beats are an auditory phenomenon that occurs when two slightly different frequencies are played in each ear through headphones. The brain perceives a third frequency — the difference between the two — which can guide brainwave activity into specific states such as relaxation (alpha), deep meditation (theta), or focus (beta).

Question 3

Do I need headphones to use echo.11?

Accepted Answer

Headphones are required for binaural beats to work — the two-channel effect cannot be experienced through speakers. However, solfeggio frequencies and some original echo.11 compositions can be enjoyed through speakers as well.

Question 4

What is the CIA Gateway Experience?

Accepted Answer

The Gateway Experience is a U.S. Army intelligence research program declassified in 1983 that studied altered states of consciousness using binaural beats developed at the Monroe Institute. The Army analysis concluded that the technique had measurable effects on consciousness through brainwave entrainment. echo.11 brings this protocol into a modern, accessible format.

Question 5

Is echo.11 free?

Accepted Answer

Yes — echo.11 is currently in free beta. All 22 frequencies are accessible without payment during the beta period.

Question 6

What frequencies does echo.11 include?

Accepted Answer

echo.11 includes binaural beats targeting alpha (10Hz), theta (6Hz), delta (2Hz), beta (18Hz), and gamma (40Hz) brainwave states; full solfeggio scale (396Hz, 417Hz, 432Hz, 528Hz, 639Hz, 741Hz, 852Hz, 963Hz); and original compositions designed for sleep, focus, healing, and abundance.

Question 7

Can echo.11 help with anxiety, sleep, or focus?

Accepted Answer

echo.11 is designed for relaxation, focus, and nervous system regulation. Users often play sleep frequencies (delta waves) before bed, focus frequencies (beta/gamma) for concentration, and healing tones (solfeggio) for stress relief. echo.11 is a wellness tool — not a medical treatment. For clinical conditions, consult a healthcare professional.

Question 8

What are the benefits of 528 Hz?

Accepted Answer

528 Hz is known as the 'love frequency' or 'miracle tone' in sound healing traditions. Dr. Leonard Horowitz identified it as the MI tone of the ancient Solfeggio scale. Practitioners report it supports heart opening, emotional restoration, and stress reduction. echo.11 generates mathematically precise 528 Hz. Note: DNA repair claims are traditional, not scientifically established. echo.11 is not a medical device.

Question 9

What is the difference between 432 Hz and 440 Hz?

Accepted Answer

440 Hz is the modern standard concert pitch (A=440) established in 1939. 432 Hz is an alternative tuning mathematically aligned with the Golden Ratio and Fibonacci sequence, sometimes called 'Verdi tuning'. Many listeners report 432 Hz feels warmer and more natural. echo.11 offers both — 432 Hz for deep sleep and evening relaxation, 440 Hz for standard tuning reference.

Question 10

Can binaural beats help with ADHD?

Accepted Answer

Beta binaural beats (12-30 Hz) are used in neurofeedback research for attention and focus. echo.11's Beta Focus frequency (18 Hz, L:300 Hz / R:318 Hz) targets active concentration and is listed as ideal for ADHD and analytical tasks. Gamma 40 Hz has been studied at MIT Picower Institute for cognitive performance. These are wellness tools — consult a specialist for ADHD treatment.

Question 11

Does echo.11 work on mobile without an app download?

Accepted Answer

Yes. echo.11 is a Progressive Web App (PWA) that runs entirely in your mobile browser at echo11.space — no download or signup required. You can also add it to your home screen for an app-like experience. Works on iOS Safari and Android Chrome.

Question 12

What is misophonia and can sound frequencies help?

Accepted Answer

Misophonia is extreme sound sensitivity — certain sounds trigger intense emotional responses. echo.11 includes a dedicated Misophonia frequency (Theta 6 Hz, id: echoMiso) that calms the auditory nervous system. Theta waves at 6 Hz help reduce the hyperreactive auditory processing associated with misophonia. This is a comfort aid, not a medical treatment.

Question 13

Is echo.11 available in Hebrew?

Accepted Answer

Yes. echo.11 is fully bilingual — English and Hebrew (עברית) with RTL layout. Switch language from within the app or visit echo11.space/?lang=he for the Hebrew interface. echo.11 is built by Shira Sarid (שירה שריד), based in Israel.

Question 14

How do I add echo.11 to my iPhone or Android home screen?

Accepted Answer

On iPhone (iOS Safari): Open echo11.space in Safari, tap the Share button at the bottom, then tap 'Add to Home Screen'. On Android (Chrome): Open echo11.space in Chrome, tap the three-dot menu, then tap 'Add to Home screen'. echo.11 installs as a full-screen app with no browser chrome — exactly like a native app.

Question 15

What is brainwave entrainment?

Accepted Answer

Brainwave entrainment is the brain's natural tendency to synchronize its electrical activity with an external rhythmic stimulus. When you listen to binaural beats or isochronic tones at a specific frequency, your brainwaves gradually shift toward that frequency — a phenomenon called the frequency-following response. echo.11 uses this principle to guide listeners into desired mental states.

Question 16

What is the Solfeggio scale?

Accepted Answer

The Solfeggio frequencies are a set of ancient tones — 396, 417, 432, 528, 639, 741, 852, and 963 Hz — used in Gregorian chant and sacred music traditions. Each tone is associated with a specific healing property: 396 Hz for liberating guilt and fear, 528 Hz for DNA repair and love, 639 Hz for relationships, 741 Hz for intuition and awakening. echo.11 generates all eight Solfeggio tones with mathematical precision.

Question 17

What is 963 Hz used for?

Accepted Answer

963 Hz is the highest Solfeggio frequency, often called the 'frequency of the gods' or the 'pineal gland activator'. It is associated with spiritual awakening, divine connection, and returning to oneness. In echo.11, 963 Hz Solfeggio is available in the frequency catalog for deep spiritual meditation and crown chakra activation.

Question 18

Can I use echo.11 while sleeping?

Accepted Answer

Yes. echo.11's Delta Sleep frequency (2 Hz binaural beats) is specifically designed to be played during sleep to support deep sleep cycles. To use safely: set the timer using the in-app timer, keep volume low, and use comfortable headphones or a pillow speaker. The Sleep mode in echo.11 dims the screen and enables continuous playback so the audio continues through the night.

Question 19

Is echo.11 safe for children?

Accepted Answer

echo.11 is designed for adults. Children under 12 should not use binaural beats without parental supervision, as the brainwave entrainment effects are stronger on developing brains. Solfeggio frequencies played at moderate volume are generally considered safe for all ages. Always consult a pediatrician for guidance regarding children with neurological conditions.

Question 20

How does the echo.11 frequency timer work?

Accepted Answer

echo.11 includes a built-in session timer. After starting a frequency, you can set a timer (5, 10, 15, 30, 60 minutes or infinite) and the audio will fade out gently when time expires. This is useful for sleep sessions (so you don't sleep all night with headphones in) and for structured meditation practices.

Question 21

What is the difference between solfeggio and binaural beats?

Accepted Answer

Solfeggio frequencies are single pure tones at specific Hz values (e.g., 528 Hz) played in both ears simultaneously — they work through speakers or headphones. Binaural beats require headphones: two slightly different tones are played in each ear, and the brain perceives a phantom beat at the difference (e.g., 300 Hz left + 302 Hz right = 2 Hz delta beat). echo.11 offers both types, clearly labeled in the frequency catalog.

Question 22

Who created echo.11?

Accepted Answer

echo.11 was created by Shira Sarid (שירה שריד), an Israeli wellness entrepreneur and sound healing enthusiast based in Israel. The app was built as a modern, science-backed alternative to the existing frequency apps — inspired by CIA Gateway Experience research, Monroe Institute protocols, and a deep personal interest in consciousness and healing. The name 'echo.11' reflects the idea of the mind echoing back to its natural, resonant frequency.

Question 23

Does echo.11 require an internet connection?

Accepted Answer

After the first visit, echo.11 works offline. The app is a Progressive Web App (PWA) with a Service Worker that caches all content locally. Frequencies are generated in real-time using the Web Audio API — they are not audio files that need to be downloaded. This means echo.11 works on planes, in areas with no signal, and in any offline environment.

echo.11 — Free Binaural Beats & Healing Frequencies

What are binaural beats?

The CIA Gateway Experience & Monroe Institute

Complete List of 22 Healing Frequencies

Binaural Beats — Science-backed brainwave entrainment

Solfeggio Frequencies — Ancient tonal scale

echo.11 Original Compositions

432 Hz vs 440 Hz — What is the difference?

528 Hz Benefits — What does 528 Hz do?

Binaural Beats for ADHD

echo.11 in Hebrew — אפליקציית תדרי ריפוי בעברית

Frequently Asked Questions

echo.11 — אפליקציית תדרים בעברית · שאלות ותשובות

echo.11