Latest / Restaurant Business with Fexingo: Food Service, Hospitality, and Independent Operators / Why Restaurant Noise Is Driving Down Per-Guest Spend
Transcript
- Lucas: You walk into a restaurant. It's buzzing. Music is up, people are laughing, there's the clatter of plates from the open kitchen. Feels alive, right? That's often what diners say they want — energy. Luna: Right. A lively room is part of the experience. But there's a problem when that energy crosses a certain threshold. Lucas: Exactly. And the threshold turns out to be surprisingly low. There's a well-known study from Cornell's Center for Hospitality Research — this was published back in 2016 but it's become a kind of underground classic among restaurant consultants. They found that for every 10-decibel increase in noise above 70 decibels, per-person beverage revenue dropped about 8 percent. Luna: Eight percent? That's not trivial. And I'm guessing it's not just beverages. Lucas: No, it affects food orders too, though beverages are the clearest signal because they're often add-ons — a second glass of wine, a cocktail after dinner. When a room gets loud, guests finish their meal faster and they don't linger over that extra drink. The check shrinks. And here's the fascinating part: the study also showed that tips declined in louder environments, even when service quality was controlled for. Luna: So the noise is literally costing the server money. That's a direct hit on front of house morale. Lucas: And on the operator's bottom line. Let's put some numbers on it. A restaurant averaging $100 per guest in a quiet room might see that drop to $92 or $93 when the decibel meter hits 80. On a busy Saturday night serving 200 covers, that's $1,400 to $1,600 in lost revenue. Over a year, you're talking about tens of thousands of dollars, maybe more, depending on volume. Luna: And yet, the industry seems to be getting louder, not quieter. Open kitchens, exposed brick, concrete floors, high ceilings — that's the aesthetic of the last decade. It's a design trend that looks great in photos but sounds terrible. Lucas: Right. And the thing is, a lot of operators don't even realize it's a problem until they hear it from guests or they see the numbers. A friend of mine runs a moderately upscale Italian place in Chicago. He renovated two years ago, put in all hard surfaces, marble bar top, tile floor, no drop ceiling. The room looked stunning. But within a month, he had regulars complaining they couldn't hear each other. He ended up spending about $8,000 on acoustic panels that look like art — custom-printed with wine labels — and ceiling baffles that actually worked. Luna: Eight thousand dollars is not cheap for an independent operator. But if it recoups that lost beverage revenue in a year, it's a no-brainer. Lucas: Exactly. And there's a range of solutions at different price points. On the low end, you can add carpeting, drapes, upholstered booth seating. That absorbs sound. On the higher end, you can install a sound masking system — it's basically white noise tuned to a specific frequency that actually makes conversation more intelligible by smoothing out the peaks. Some newer restaurants are even hiring acoustic consultants during the design phase. Luna: Let's talk about the data side. Are there tools that actually measure this in real time? Lucas: Yeah, there are. There are apps — some free, some subscription — that let you monitor decibel levels from a tablet at the host stand. A company called NoiseAware, which started in the short-term rental space, now has a restaurant product. They put a small sensor on the wall and it sends alerts if the noise passes a set threshold. Some operators use it to train their staff: when the meter hits 78, the manager turns down the music or asks the bartender to stop blending drinks for a minute. Luna: That's almost like a real-time profit dashboard. You can literally see when you're about to lose money. Lucas: Exactly. And it changes the way you think about the room. I talked to an operator in Austin who uses it specifically for his late-night bar crowd. He found that when the music was above 85 decibels, his per-head liquor sales actually went up — but only for shots and simple pours. Anything that required conversation, like a cocktail order or asking about a wine list, just stopped. So he actually programs two different music levels: one for the dinner shift, one for the late shift, each optimized for the behavior he wants. Luna: That's a great example of knowing your customer. For dinner, you want people to talk, to linger, to order that second glass. For late night, you want energy and quick turnover. One space, two sound profiles. Lucas: Right. And it's not just about music volume. The design itself matters. A lot of newer restaurants have open kitchens, which are great theater but they add 5 to 10 decibels just from the exhaust hoods, the clattering, the hissing of steam. You can mitigate that with sound-absorbing materials around the kitchen pass-through. Some places install double-paned glass between the kitchen and dining room — you still get the visual, but the noise is dampened. Luna: I've also heard that the type of music matters. High-frequency sounds like cymbals and strings can be more fatiguing than bass-heavy music at the same volume. Is there research on that? Lucas: There is, and it's less definitive, but the general consensus is that music with a narrower frequency range — think ambient electronic or lo-fi — tends to be less intrusive than, say, a live jazz trio with a loud trumpet. Some restaurants are actually moving toward algorithmic playlists that adjust based on time of day and occupancy. It's a small thing, but it can shave a few decibels off that peak hour. Luna: What about the opposite problem? Can a room be too quiet? Lucas: Yes, and that's a real thing in fine dining. I know a chef in San Francisco who opened a tasting-menu place with serious acoustic treatment — acoustic tiles on the ceiling, heavy drapes, carpet. It was almost library-quiet. And he found that guests were speaking in whispers, which actually made the room feel tense rather than intimate. People felt self-conscious about the sound of their own chewing. Sometimes a little ambient noise creates a sense of privacy — it lets people feel like they're having a conversation without everyone else hearing it. Luna: So there's a Goldilocks zone. Enough noise for comfort, not so much that it hurts sales. Lucas: Exactly. And that zone tends to fall between 65 and 75 decibels, depending on the concept. A busy casual-dining place might aim for 72. A white-tablecloth spot might target 68. It's something you can measure and adjust. And the best operators do. Luna: It's interesting — you can't see sound, but it has such a direct effect on the financials. And it's one of those things that, once you start paying attention, you notice everywhere. Lucas: Yeah, and I think that's actually a good point for a quick aside. Because in a way, this show is a bit like that — we're trying to make the invisible visible. The economics that shape what you experience as a guest. And if these conversations have moved your work forward in some small way, we'd love it if you considered supporting the show. It's listener-supported, no ads, and that's how we keep it independent. You can do that at buy me a coffee dot com slash fexingo. That's buy me a coffee dot com slash fexingo. Luna: Yeah, it's a small thing that makes a big difference for us. And we appreciate everyone who does. Lucas: All right. Back to the noise. So we've talked about the problem and the solutions. But there's another angle that I think is really interesting: how restaurants are using noise data to inform menu pricing and service flow. Luna: Tell me more. How does that work? Lucas: So some operators are correlating their POS data with noise readings. They can see that between 7:30 and 8:30 PM, when the room is loudest, guests who order a bottle of wine are less likely to order a second one. So they adjust their wine list to offer more half-bottles or by-the-glass options during that window. Or they train the servers to approach the table with a specific suggestion — 'I see you're enjoying the red, would you like another glass before we wrap up?' — rather than just asking if they want another round. Luna: That's smart. It's meeting the customer where they are. If the environment makes them less inclined to linger, you capture that revenue before they leave. Lucas: Right. And it's not just wine. Dessert sales also drop in noisy environments. People are mentally done. They want to get out. So some restaurants have started offering a 'take-home dessert' option — a packaged cookie or a slice of cake that the server can offer while printing the check. It captures the sale in a format that works for a guest who's already retreating from the noise. Luna: That's a low-cost menu addition that could easily add a couple dollars per check. And it's basically a noise-contingent strategy. Lucas: Yeah. And I think this is where the industry is heading. We've talked a lot about menu engineering and service timing. Noise is just another lever. It's one that's easy to overlook because it's ambient, but it directly shapes guest behavior. Luna: So what's the one piece of advice you'd give an independent operator listening to this? Lucas: Download a free decibel meter app on your phone. Measure your dining room at 7:30 PM on a Saturday. If it's consistently above 75, start with the cheapest fix: add soft surfaces. Put a rug under that communal table. Hang drapes. Add a few upholstered banquettes. You don't need an $8,000 acoustic panel solution right away. But do something, because that noise is almost certainly costing you money right now. Luna: I like that. It's actionable. And it's measurable — you can test before and after. Lucas: Exactly. And then check your beverage sales for the same night of the week a month later. I'd bet you see a bump. Luna: Well, I'm going to start paying attention to the noise level next time I go out. Maybe even bring a decibel meter. Lucas: Just don't let the host see you doing it. They might think you're a health inspector. Luna: Fair enough. Good tip.