[sdiy] Harmonic bandwidth

[Ben Lincoln]

On Thu, January 10, 2008 6:08 am, Scott Gravenhorst said:

> However, within the domain of any individual's hearing, according to
> theory, we should
> not be able to hear the difference between two signals with the same
> harmonic
> components when harmonic phase relationships are constant, but different
> between two
> signals.

Scott, have you read the article that Ian posted a link to yet
(http://www.silcom.com/~aludwig/Phase_audibility.htm)? Apparently it's
been known for quite awhile that the older theory is not 100% correct, and
the article makes an argument for it being even less correct than in the
papers that are cited.

I was also a little surprised to find that the research which was the
basis for the "harmonic phases are not distinguishable" statement was from
the middle of the 19th century. While I don't think that means it should
be entirely discounted, it seems to me like the equipment in 1843 would
not be nearly accurate enough to use as a basis for that kind of broad
statement without duplicating the results using modern equipment.