0

I want to record sound of a machine and want to detect if its present in another sound file that I record. I am able to record the sound of the machine and the sound file that I want to detect its presence.

I am also able to take fft of the sound files, however I dont know If I should check specific frequencies or check it in time intervals. Can I implement it with aubio or is there another way?

silent room silent room + sound

Yansı Cengiz
  • 11
  • 3
  • What is the machine that you are recording? Do you mean the very same record of the machine or record of the same machine? – Gideon Kogan Nov 15 '18 at 13:08
  • Record of same machine. I want to detect the source of the noises in the room automatically. So in a room first I record a sound in wav format. There were no dominant noise exist (assume silent), next I record a specific noise (caused by audio jack from speaker). Now I will write a program which records sounds in a determined interval, then check if the noise (audio jack noise) exist or not. So in basic; how can I compare 2 wav file and figure out the additional sound? – Yansı Cengiz Nov 15 '18 at 14:05
  • If you neglect the reflections, you should create a noise signature and compare it the your reference. This task is not trivial and requires solid knowledge in many fields. To understand how such signature can characterize, I suggest you to review the following work: Antoni, Jérôme. "Cyclostationarity by examples." Mechanical Systems and Signal Processing 23.4 (2009): 987-1036. Good luck – Gideon Kogan Nov 15 '18 at 14:54
  • Thanks for the answer, Since this only a small part of my project, I thoughed that I could compare two sound files with aubio or any python application. Is it possible or there is no such application to do that? – Yansı Cengiz Nov 15 '18 at 15:46
  • I am not familiar with such a program. Maybe you should reconsider your project content or reevaluate the time you want to dedicate for this section. – Gideon Kogan Nov 15 '18 at 15:49

0 Answers0