"Richard C. Burnett" wrote:
>
> > That is one variation. But if the "sphere" is really the "disco ball"
> > type surface...a sphere that has a large number of small flat surfaces
> > that altogether almost are a sphere...then that isn't a problem. Like I
> > said, there are variations on the geom
> That is one variation. But if the "sphere" is really the "disco ball"
> type surface...a sphere that has a large number of small flat surfaces
> that altogether almost are a sphere...then that isn't a problem. Like I
> said, there are variations on the geometry to do different things. The
> base
"Richard C. Burnett" wrote:
>
> What you are making in itself is an analog to digital
> converter. Questions that pop off the top of my head:
>
> 1. different angles will have different lengths to the detectors, are you
> thinking of making the detectors curve to the geometric shape?
That is o
Nope, I meant a Michaelson interferrometer. This has a single
detector is used and it counts interference fringes as the
distance between the diaphragm and laser changes. So you are
actually measuring displacement to the accuracy of a
wavelength of light, and using a counting process (which i
What you are making in itself is an analog to digital
converter. Questions that pop off the top of my head:
1. different angles will have different lengths to the detectors, are you
thinking of making the detectors curve to the geometric shape?
2. Since the laser will not be a point but a spr
> I'm not much of an engineering guy, but does switching to optical
> necessarily mean switching to digital? Couldn't you use the frequency of
> the light much like an electrical wire? I guess it depends on the
> available hardware.
You would have to modulate the light regardless, so it would b
On Mon, Mar 04, 2002 at 06:31:12 -0700, D. Stimits wrote:
> I'm also interested in knowing how hard it is, in general, to create
> optical output hardware for audio devices, specifically if I were to
> make a small microphone pre-amp, and wanted it to create optical output
> instead of analog, how
Hi,
I thought, thats interesting, lets do a search on google. So I search for
digital microphone. And came up with: http://www.ptang.com/digmic/showpatimg
For those who don't want to bother with the link: It's a patent for
putting the A/D converter in the microphone housing! Guess Neumann will
actuallyt you can get digital microponones: they measure the
displacement of the diaphram by counting fringes on a laser
interferometer, so there never is an analogue signal (except
the physical movement of the membrane itself).
Damned if I can find a reference to it now... I hope it
wasn't a
Taybin Rutkin wrote:
>
> On Mon, 4 Mar 2002, D. Stimits wrote:
>
> > schemes can be used such that center and center drift does not care
> > about some of the component wear. Add to this that eliminating any D/A
> > or A/D controller and using direct optical means is a guaranteed 100%
> > linear
On Mon, 4 Mar 2002, D. Stimits wrote:
> schemes can be used such that center and center drift does not care
> about some of the component wear. Add to this that eliminating any D/A
> or A/D controller and using direct optical means is a guaranteed 100%
> linear signal, no temperature drive ever.
Taybin Rutkin wrote:
>
> On Mon, 4 Mar 2002, D. Stimits wrote:
>
> > make a small microphone pre-amp, and wanted it to create optical output
> > instead of analog, how big of a mess would I be getting into?
>
> I'm not much of an engineering guy, but does switching to optical
> necessarily mean
On Mon, 4 Mar 2002, D. Stimits wrote:
> make a small microphone pre-amp, and wanted it to create optical output
> instead of analog, how big of a mess would I be getting into?
I'm not much of an engineering guy, but does switching to optical
necessarily mean switching to digital? Couldn't you u
This isn't really an audio Q, but it is probably best asked of audio
programmers. I have never looked at optical protocols for audio cards,
I'm wondering if anyone could give me a ball park estimate of how
feasible it would be to create a controller device, such as a joystick,
that has direct opti
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