DeciBars is a noise-aware venue discovery app that helps you find restaurants, bars, cafés, and lounges based on how loud or quiet they actually are when you plan to visit. Instead of guessing whether a spot will be too loud for conversation or too quiet for a lively night out, DeciBars estimates real-time decibel levels using a blend of user-submitted measurements, live occupancy data, time-of-day patterns, AI photo analysis, weather, and nearby event detection. It's built for everyone who cares about sound: remote workers hunting for a quiet café with outlets, couples planning a date where they can actually hear each other, sensory-sensitive and neurodivergent visitors who need low-stimulation spaces, and migraine-prone diners who want dim, calm rooms. Beyond noise, every venue is rated across nine vibe dimensions — including lighting, crowd density, laptop-friendliness, ADHD/autism-friendliness, and migraine friendliness — so you can match a place to your exact needs. DeciBars is built and maintained by the DeciBars team, and it gets smarter as more people contribute real measurements and vibe ratings.
When a venue doesn't have direct measurements yet, we estimate using a combination of signals - the more signals available, the more confident the estimate.
Estimates improve over time as more people contribute real measurements. Rather than showing a single precise number, we present noise as a range (e.g. "~68–76 dB") and note how many visitor measurements back it — so you always know what's measured vs. predicted.
These are DeciBars' own descriptive categories for venue sound environments — informed by research, but not clinical thresholds. No single dB level is universally "preferred" by autistic people or people with migraine; sensitivity varies widely between individuals and even day to day. The scale simply describes how loud a venue tends to be.
| Typical LAeq | DeciBars Class | Interpretation |
|---|---|---|
| < 50 dBA | Very Quiet | Excellent for conversation; unusually quiet for a restaurant/bar |
| 50–55 dBA | Quiet | Low background noise; likely appealing to many noise-sensitive guests |
| 56–60 dBA | Calm | Generally conversation-friendly |
| 61–65 dBA | Moderate | Noticeable background sound; may bother more sound-sensitive guests |
| 66–70 dBA | Lively | Increased conversational effort; potentially uncomfortable for sensory-sensitive guests |
| 71–75 dBA | Loud | High sensory load; conversation increasingly difficult |
| > 75 dBA | Very Loud | May be particularly problematic for migraine, hyperacusis, or auditory hypersensitivity |
Two venues averaging 60 dBA can feel completely different — a steady hum of conversation versus sudden crashing dishes and peaks. That's why DeciBars captures average (LAeq), peak, and variability, not just a single number.
DeciBars' framework is informed by peer-reviewed research on sound tolerance and real-world restaurant acoustics. These studies support the rationale for our badges — they do not establish clinical cutoffs.
Beyond noise, every venue gets rated on 9 dimensions to help you find places tailored to your needs.
DeciBars is built with sensory-sensitive users in mind — not just partygoers. Our comfort badges describe environmental characteristics, not medical guarantees.
A 2024 national survey of 1,000 Americans by Quiet Communities confirmed what DeciBars was built to solve:
DeciBars supports the quiet-hours movement by letting venues flag their designated quiet periods. Venues that offer quiet hours are highlighted in search results with a dedicated filter, making it easy for noise-sensitive diners to find them. We are actively exploring a partnership with Quiet Communities' Quiet Restaurants program to expand this initiative.
Email: decibars@gmail.com