[PD] high-frequency birdsong

[Matt Barber]

Figure 6 in the link is measuring up to 20khz over about a half second, and
showing some kind of step function in the spectrum halfway through. I've no
idea what they're actually recording.

On Sun, Jun 5, 2016 at 8:21 PM, Jonathan Wilkes <jancsika at yahoo.com> wrote:

> I'm trying to wrap my head around this:
>
> http://m.cacm.acm.org/magazines/2016/6/202646-physical-key-extraction-attacks-on-pcs/fulltext
>
> So to answer the question-- yes, the mic has to respond.  So if the worry
> is cellphone microphones, I simply don't see how the mic could deliver any
> useful data whatsoever to the analysis software.
>
> -Jonathan
>
>
> On Sunday, June 5, 2016 8:07 PM, Matt Barber <brbrofsvl at gmail.com> wrote:
>
>
> Will your mic respond? Or are the physics immaterial?
>
> On Sun, Jun 5, 2016 at 12:47 PM, Jonathan Wilkes via Pd-list <
> pd-list at lists.iem.at> wrote:
>
> Hi list,
> Suppose a bird sings a song in a frequency range around 1gHz. (Yes, "g"Hz)
>
> The song the bird sings is always exactly the same.
>
> The bird repeats its song several million times over the course
> of an hour.
>
> If I record at a sampling rate of 44.1kHz below the tree in which the bird
> is perched,
> for a duration of one hour, would I be able to recreate the bird's song?
>
> -Jonathan
>
>
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