On Sun, Jan 4, 2009 at 1:04 PM, Ike Zimbel <[email protected]> wrote:

 Let's be clear about terminology here. I am often trying to determine
> whether or not someone heard a "buzz" or a "hum". I define buzz as more of
> an HF noise, of no particular frequency. Hum is, in my book, AC line
> frequency (50/60hz depending what part of the world you are plugged in) and
> its harmonics: 100/120hz, 150/180hz, 200/240hz, 250/300hz etc.
> The two sounds tell a very different story as do the different frequencies
> of hum.
> best,
> ike
>

I use the same parameters to distinguish between the two, but I should have
clarified with the OP because, as you said, "buzz" and "hum" usually point
to different causes.

Cheers,
--
Don

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