>>>>On the harmonic entropy list, when we were listening to
>>>>chords of tones with harmonic content, at least two of us
>>>>reported hearing a "warbling", "pulsing" at a rate which
>>>>could only have been caused by the presence of virtual
>>>>pitches (not combination tones).
>>>
>>>i don't remember this being our conclusion. could you point us to
>>>this discussion again? perhaps on the harmonic entropy list
>>>itself . . .
>>
>>See msg. number 174.
>
>i don't see how the presence of virtual pitches would help explain
>this. virtual pitches occur at the missing fundamentals of
>approximate harmonic series. that would be at the "1" of the
>9:10:11:15 chord.

I thought you were suggesting a 2nd-order virtual pitches, if you
will.

>meanwhile, it's obvious that i was stoned when i wrote that message.
>in fact i remember it -- i was at ara's apartment late at night.
>anyhow, the most prominent combinational tones at low volumes are of
>the form 2*a - b. and 2*10 - 9 = 11. so there ya go. combinational
>tones do seem to be at work, explaining the warbling.

:)

Is there a name for 2*a-b combination tones? These are louder than
a-b and a+b at low volumes, eh?

>should one of us report back to the tuning list on this?

Go ahead.

Actually, what do you think of a binaural version of this chord,
and see if the warbling goes away?

-Carl