Deaf Cat wrote:
Is it me being a bit daft, what would create that sort of high freq
(annoying) stuff in music anyway?
Drummers and piccolo players, mostly.
Seriously though, pure sine waves are rare in music. Exceptions for
synthesizers, triangles, and members of the flute family.
Musical waveforms are complex mixtures of primary frequencies and
secondary harmonics. These secondaries are responsible for the timbre,
or quality of sound, that, as an example, makes a piano playing a
middle-C sound different than a clarinet playing the same note.
Secondaries are multiples of the primary frequency and can range quite
high up into the audible spectrum.
A reproduction system that does not cover this spectrum will not be able
to accurately represent the full range of each instruments voice.
--rt
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