[LAD] You couldn't make it up

[Jonathan E. Brickman]

On 11/30/18 5:11 PM, Will Godfrey wrote:

> I've just read an item on "The Register" about a network connected high
> performance oscilloscope... with no security. That's as in Zero, None, Keine.
>
> That might not seem a big deal, except that this sort of kit tends to reside in
> research labs, so evilCorp (tm) could snoop on what a competitor is working on,
> and pretty quickly work out not only what it is, but how well it's performing.
> Said evilCorp could then plant some nasty that casually looks around to see
> what other kit is on the network. Presumably this also potentially opens a door
> to sabotage.
>
> Anyway, that got me thinking (yes I know)
>
> Has anyone thought of connecting an AD converter to a Raspberry Pi to make a
> high resolution, but comparatively low bandwidth oscilloscope for audio work?
> Say 16bit 500k. I'm thinking it could possibly be connected via I2C or SPI,
> both of which are supported on the Pi...
> or even {cough} ethernet {cough}
>
> BTW I'm not talking about connecting to bitscope - that only has 8bit resolution
> and the module itself has no gain control and is easily overloaded :(

How about 32bit with 384kHz sampling?  Boxes like these are starting to 
spring up.

https://www.amazon.com/GUSTARD-U12-384KHz-Digital-Interface/dp/B00PU3R6KY

Might be an interesting challenge to find (or help write) the code to 
make it work -- I don't know anyone actually advertising that their ALSA 
or JACK code is very good for that high a sampling rate -- but most of 
it should already be there, I think?

-- 

Jonathan E. Brickman jeb at ponderworthy.com <mailto:jeb at ponderworthy.com> 
    (785)233-9977
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