My sounds
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Drag on the graph to bend the curve: up for more of those frequencies, down for less.
Let murmur listen to your room for a few seconds. It draws what it hears on the graph and builds a noise that sits exactly on top of it, so the sounds that bother you blend in at the lowest volume that works.
Noise from a speaker can cover a sound, not cancel it. The microphone is analysed here in your browser, as loudness per frequency; nothing is recorded, stored or sent anywhere.
Then set the volume so the room's sounds just blend in. Louder is not better.
Follow the room headphones only
While this is on, murmur keeps listening and lifts the mask a little when the room gets louder, then lets it sink back. With speakers the microphone would hear the mask itself, so murmur checks that first.
Many people with tinnitus find it easier to live with when there is a soft sound around it. Two kinds are common: noise with a gap around your tone, and a narrow band of noise right on it. Find your tone, then try both.
This is for comfort, not treatment, and murmur is not a medical device. Keep the sound quieter than your tinnitus rather than drowning it. If tinnitus is new, one-sided or worsening, see a doctor.
1. Find your tone
Start quiet. Move the pitch until the tone matches what you hear.
2. Check the octave
Ears easily settle on a tone one octave off. Compare these three, then keep the closest.
3. Make the sound
Sleep
The sound fades out slowly at the end, so the silence does not wake you.
Focus
Work and break in turns. No beep: in the break the sound steps back, and when it returns the break is over.