Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
Recalculations place it at 0.4999.

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.

user:
pass:
register,


           

Please log in.
Before you can vote, you need to register. Please log in or create an account.

Visible Polar Patterns for Electro-acoustic Devices

Match LED polar patterns to acoustic devices
  (+8)(+8)
(+8)
  [vote for,
against]

As an instructional aid, and / or for professional use, I propose to mount LED(s) on microphones and/or loudspeakers, where the visible polar pattern of the LED(s) match the polar sensitivity or dispersion pattern of the electroacoustic device.

For Instance, an omnidirectional mic would feature a frosted LED uniformally visible from any direction, while a cardioid mic would feature a directional LED matching the polar pattern of the mic. Similarly, figure-8 mics would show the polar lobes from each side, but none from the polar minima.

Loudspeakers would be similarly enhanced, and either could be equipped with frequency-selective lighting (red for low frequency omnidirectionality, through green, yellow, blue, etc., matching the frequency-dependent polar response of the transducer.)

Powered by phantom power or AA batteries.

csea, Nov 18 2013

[link]






       A scanning laser would be better.   

       [+]
8th of 7, Nov 18 2013
  

       This sounds like a very good idea.
MaxwellBuchanan, Nov 18 2013
  

       Hang on a sec. Wouldn't all those LEDs block the sound?
MaxwellBuchanan, Nov 18 2013
  

       // Wouldn't all those LEDs block the sound? //   

       Two words: "One Direction"
8th of 7, Nov 18 2013
  

       As long as the LEDs are small compared to the wavelength of the highest frequency of interest (20kHz, ~1.7cm) there should be no significant blocking.
csea, Nov 18 2013
  
      
[annotate]
  


 

back: main index

business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle