Audio Analysis Confirms New Sasquatch Howler in Monitored Ravine

# Three Flat-Signature Howls Have Researchers Buzzing — And the Audio Doesn't Lie If you've spent any time in the woods at night, you know that sound carries in ways that can make your hair stand on end. But what happens when that sound shows up on a spectrogram looking nothing like anything in the canine family? That's exactly the question one researcher is tackling in a recent video breakdown that's been making the rounds. The footage in question comes from a long-term monitoring project in an area researchers have been calling NA1B — a ravine that's been on the radar for suspicious activity since at least 2021. The researcher behind the camera has been recording in this spot for over five years, getting familiar with every coyote, every dog, and every owl that calls that drainage home. That kind of baseline knowledge is gold when something unusual finally shows up. And something unusual did show up. ## The Howls That Don't Match Three howls were captured in a single 45-second clip, and they immediately stood out. The first runs about 14 seconds, the second around 10, and the third just shy of 9.5 seconds. Length alone isn't the smoking gun — humans can produce extended howls too, and the researcher is quick to point that out. What makes these vocalizations special is the *signature*. On the spectrogram, the howls appear as remarkably flat, straight lines. The fundamental frequency sits around 323 Hz, with the first harmonic running near 640 Hz. Compare that to the domestic dog howling in the same clip — a hound mix that responds to the suspicious howler — and the difference is night and day. The dog's signature curves and fluctuates the way canine vocalizations typically do. The suspect howls don't. "I've looked at wolf, coyote, domestic dog, and I've yet to see a canine run that flat," the researcher explains in the video. And he's not the only one who noticed. ## Expert Eyes Agree The audio was sent off to two well-known figures in the vocal analysis community — Managa and David Ellis — and both came back with the same conclusion. The flat signature, combined with what appears to be a larger lung capacity for broadcasting over distance, points strongly toward a target subject. The researcher notes that the animal may have even been turning its head mid-broadcast, something canines generally don't do while howling. ## A New Voice in a Familiar Place Here's where the context really sells the story. This particular ravine was hot from 2021 through 2024 — percussives, whoops, gorilla-like vocalizations, chimpanzee-like sounds, the whole catalog. Activity was so consistent it ran on almost a five-to-seven-day schedule. Then 2025 hit, and the place went nearly silent. A few scattered percussives, but nothing solid. Then, out of nowhere, these three howls. The researcher has recorded three distinct individuals in this ravine over the years — he's got names for them and knows their tones. This isn't any of them. This is a new voice, showing up once, doing his thing, and moving on. After that 45-second clip, silence again. Months of recording, and this is all that surfaced. It's almost like someone was rolling through, checking to see if anybody was home. ## Why This Matters Vocalization analysis has become one of the more compelling avenues of research in recent years. When you can rule out every known animal in an area — and the researcher has clearly done his homework on the local coyote population and that chatty hound mix — you're left with a much shorter list of possibilities. The flat signature is particularly interesting because it suggests a vocal apparatus different from anything in the canine family. The researcher also points out something worth noting: before the three suspicious howls, there were single coyote warning calls. After, more of the same. Nothing in between. Coyotes don't typically warn about dogs — they warn about things that make them nervous. ## Watch It Yourself The full breakdown, including side-by-side spectrogram comparisons and the actual audio playback, is worth the time. The researcher walks through each howl, shows you exactly what to look for on the visual readout, and plays the comparison dog vocalizations so you can hear the difference with your own ears. It's a masterclass in field recording analysis and exactly the kind of methodical work that strengthens the broader conversation around these vocalizations. Head over to YouTube and search for the channel Toutle River Valley Skookum to catch the full video. Bring headphones if you've got them — the audio differences are subtle but striking once you know what to listen for. And if you've been doing your own recording work, take the researcher's advice: get to know your area. Learn every animal that lives there. That way, when something *changes*, you'll know it.