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

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
10/09/06 12:46
Read: times


 
#126042 - Speaker
Responding to: ???'s previous message
Mahmood Elnasser said:
4. Use low pass filter to convert square wave frequency to sine wave and amplify them to get good quality sound.

Loudspeakers are pretty good low-pass filters, so you might not actually need one.

I don't think an 8051 is ever going to give really "good quality sound" - we're talking Stylophone here; not Steinway...! ;-)

What loudspeakers really don't like, though, is DC - so you need to ensure that the signal to the speaker doesn't have any (appreciable) DC component...


List of 5 messages in thread
TopicAuthorDate
tone generator(octaves )with 8951            01/01/70 00:00      
   To generate tones            01/01/70 00:00      
      Speaker            01/01/70 00:00      
   Full details            01/01/70 00:00      
      Looks like a homework            01/01/70 00:00      

Back to Subject List