Actions
Forum Thread Details
  • State Suggested Answer
  • Replies 4 replies
  • Answers 1 answer
  • Subscribers 391 subscribers
  • Views 419 views
  • Users 0 members are here
Related

Sound detection project

onur

  Hello;

 

  I am new in arduino and electronics.I need to make sound detection system.This system should report direction of sound as degree and height.Which topics should I research ? From where should I start to design this project?

  Thank you in advance image

Parents
  • 0

    You can do this using multiple microphones. you will need to be able to recognize the same sound features on each microphone so you can compare the time of arrival for each mic. Determining the amplitude is easy, just compare peak values from analog inputs on each mic. Determining the direction crudely is easy enough if you can recognize the same sound on multiple mics - the first one to detect the sound indicates which mic is closest to the source. A more accurate direction can be obtained using trigonometry on the times of arrival (knowing the relative positions of the mics). The hard part is recognizing the sound. You can use filters or a DSP to isolate specific frequencies or map the relative amplitudes of each frequency band. If you know ahead of time what the sounds will be, signal analysis can be simplified.

    What sounds to you expect to receive?

  • 0 in reply to dougw

    First of all thanks for your answering.I expect to receive clapping sound.I have one more question.After microphones hear the sound, I need to show angle and height data on computer screen.How can I provide that?

Reply Children