Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
06/21/06 15:10
Read: times


 
#118751 - Intermodulation not beat frequencies
Responding to: ???'s previous message
Christoph said:
Beat frequencies will appear as one tone whose volume is modulated (but the pitch is still similar to that of the two single frequencies).

I didn't talk about beat frequencies, but intermodulation products: If you give 17kHz and 20kHz onto an unlinear device, then you will observe additional frequencies of the difference and sum of both, means you will observe an additional 3kHz and 37kHz tone.

The question is now, whether the human ear acts like an unlinear device and generates hearable intermodulation tones.

Kai

List of 23 messages in thread
TopicAuthorDate
High pitched ring tones            01/01/70 00:00      
   LM556            01/01/70 00:00      
   Download The Ring Tone.            01/01/70 00:00      
   Adding signals with two frequencies            01/01/70 00:00      
      Sure?            01/01/70 00:00      
         Yes, quite sure.            01/01/70 00:00      
            Intermodulation not beat frequencies            01/01/70 00:00      
               Remember piano tuners            01/01/70 00:00      
                  A test should tell it            01/01/70 00:00      
                     Tuning instruments.            01/01/70 00:00      
                        Yes, but...            01/01/70 00:00      
                           Mixing 2 ultrasonic frequencys            01/01/70 00:00      
                              Cool!            01/01/70 00:00      
                                 We experimented with the "ionovac"            01/01/70 00:00      
                              Mixing two rf signals            01/01/70 00:00      
   Adding signals with two frequencies            01/01/70 00:00      
   Don't do that!            01/01/70 00:00      
      I'm with Andy            01/01/70 00:00      
         active noise reduction            01/01/70 00:00      
         Rest your fears            01/01/70 00:00      
   a better idea            01/01/70 00:00      
   Detecting high pitch sounds            01/01/70 00:00      
      No, no, do it the hard way            01/01/70 00:00      

Back to Subject List