Karl Miller asks me about my definition of noise:

>How would that apply to something which has been labeled white noise.  I
>recall the notion that white noise was the presence of all frequencies at
>all amplitudes.

Not all amplitudes, the same amplitude.  If you plot the spectral
distribution of white noise it is a flat line.  If you think about, it's
impossible to have all amplitudes present; they would sum to infinity for
each freqency.

>At one time I recall the notion that pink noise referred to all of the
>frequencies and all of the amplitudes around a certain frequency.

Again, not all amplitudes, but a gaussian distribution around the center
frequency.

len.