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From: legg <legg@nospam.magma.ca>
Newsgroups: sci.electronics.design
Subject: Re: acoustic imager
Date: Wed, 16 Apr 2025 12:39:43 -0400
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On Wed, 16 Apr 2025 07:41:06 -0700, john larkin <jl@glen--canyon.com>
wrote:

>On Wed, 16 Apr 2025 09:01:00 +0100, Cursitor Doom <cd@notformail.com>
>wrote:
>
>>On Tue, 15 Apr 2025 15:04:15 -0700, john larkin <jl@glen--canyon.com>
>>wrote:
>>
>>>
>>>https://www.google.com/aclk?sa=L&ai=DChsSEwjTjaDVg9uMAxW3Hq0GHVmKOlYYACICCAEQARoCcHY&co=1&cce=2&sig=AOD64_3aGs74magNuXwdRGFo7oP8zK-LMQ&ctype=5&q=&adurl=
>>
>>
>>For 42,000 dollars? There's a product there you could develop, John.
>
>Seems like it needs maybe a dozen electret mikes, one mux'd ADC, an
>FPGA, and some code. 
>
>I'd expect to see a Chinese version on Temu soon.

Imaging suggests 'bounce', recording requires directivity,filtering 
reflections and long-term (?|)comparison. Back-ground vs spot?

Measure what?

RL