Sonora Clinic — Anechoic Chamber Department

MFAC / MSAC

👩‍⚕️Sonora (Doctor):
“What brings you in today?”

🧚‍♂️Old Anechoic Chamber (Patient):
“Well… lately, I’m not really confident that measurements are being taken properly anymore…
My sound-absorbing material is falling apart, and… I think I even smell a bit moldy…”

👩‍⚕️Sonora:
“I see. Let me take a look inside.
…Oh dear, the glass wool is exposed. By the way, what year were you born?”

🧚‍♂️Old Anechoic Chamber:
“1995…”

👩‍⚕️Sonora:
“Ah, I thought so.
Many anechoic chambers built more than 30 years ago were designed with exposed glass wool.
That makes it easy for dust to become airborne, which can also affect human health.
Your sound-absorbing material is also clogged, and mold has developed due to moisture, so its sound absorption performance has dropped quite significantly.”

🧚‍♂️Old Anechoic Chamber:
“So it really was that bad…
Lately, I’ve also felt like the background noise level has been higher… I’m worried I may even be causing trouble for the researchers…”

👩‍⚕️Sonora:
“I understand your concern. Your door gaskets have deteriorated as well.
Since the seal is no longer tight, your sound insulation performance has declined too.
And your lighting fixtures are rather large, which means they are acting as reflective surfaces and negatively affecting the space.
Switching to smaller LED lighting would help improve that.”

🧚‍♂️Old Anechoic Chamber:
“I see… so a lot of things are wearing out…”

👩‍⚕️Sonora:
“But don’t worry. There are still options.
First, we should consider a full refresh of the sound-absorbing material.
In particular, our sound-absorbing wedge, BFW, has a special structure that allows air to pass through while repelling water and dirt. It is also highly resistant to damage and less prone to deterioration.”

🧚‍♂️Old Anechoic Chamber:
“There’s really a material like that…?!”

👩‍⚕️Sonora:
“Absolutely.
Also, the JIS / ISO standards were updated in 2012 (ISO 3745 / JIS Z 8732), so bringing your chamber into compliance now would also give you greater confidence in measurement accuracy.”

🧚‍♂️Old Anechoic Chamber:
“So even the standards had changed… I didn’t know…”

👩‍⚕️Sonora:
“Yes.
You still have plenty of life left in you.
Silence is not about age — it’s about maintenance.
That said, when considering future operation, it may also be worth making a bold decision to dismantle the current chamber and build a new one.
Let’s think together about which option is best.”

🧚‍♂️Old Anechoic Chamber:
“Yes…! I’ll look into it positively.”

👩‍⚕️Sonora:
“Then for today, I’ll prescribe a ‘Silence Recovery Plan’ consisting of BFW, along with improvement proposals for the gaskets and lighting.
No need to rush — let’s maintain things properly and carefully.”

🧚‍♂️Old Anechoic Chamber:
“Thank you… I already feel a little better.”

👩‍⚕️Sonora:
“Take care♪”

At Sonora Technology, we do not want to be just another “sales company.”
We want to be doctors of sound — professionals who listen closely to your concerns and help you find the right solution.

Whether it is an issue with your anechoic chamber, discomfort in your measurement environment, or even a small question like, “Is this really okay?” — please feel free to reach out.

We hope to become the trusted family doctor for your research and measurement environment.