The Logic Off Topic list

--- In logic-ot@y..., DbbBrook@a... wrote:
> HELLO EVERY ONE THIS IS MY FIRST QUESTION SO LETS HOPE IT GETS A GOOD 
> RESPONSE.
> 
> Can any one explain to me the relationship between harmonic content and 
> waveform of sound waves?
> 
> I know what various waveforms are just don't know the relationship between 
> harmonic content.

Hey Debs,
The answer is easy: more harmonic content equals high density of waves that resemble noise. White noise has signals of all frequencies at equal amplitude/strength. So the more a signal resembles noise the higher it's harmonic content. Now, a square wave also has a high harmonic content, so does a sawtooth wave. The difference between these waves and white noise is that the frenquencies are not equal in amplitude.
So, if you see a waveform that resembles white noise, you know that the waveform has equal representation of all frequencies.
Hope this answers your question,
Yoonchi.