> > On Thu, 24 Jan 2008 03:17:56 -0800 (PST), "mwa...@gmail.com"
>
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>
> Steve
Hi all,
thanks for your quick replies. So, as I understand it now, "frequency
content" is the range of 'significant' spectral energy. But without
considering the spectral "shape"? I.e., the actual energy distribution
is not inherently covered by the term "frequency content"? Or is it a
matter of definition?
Thanks again
Don Pearce - 25 Jan 2008 15:41 GMT
>> > On Thu, 24 Jan 2008 03:17:56 -0800 (PST), "mwa...@gmail.com"
>>
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>
>Thanks again
If you are producing sounds, "frequency content" may be those
frequencies you consider significant to the purpose. But you may want
to broaden the definition to include those that are there in
significant quantity, even if they are unwanted.
As I said, this is not a term with a precise definition within the
art. It will mean what you want it to mean. Just be clear about what
you are saying.
d

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Angelo Campanella - 27 Jan 2008 01:35 GMT
>>>>On Thu, 24 Jan 2008 03:17:56 -0800 (PST), "mwa...@gmail.com"
>>>>>I am looking for a precise definition of the term "frequency content".
>>>>>Can anybody help or point me to specific literature?
The term 'frequency content' (of a sound or signal) is typical "jargon"
(lazy English?) comprising a one-dimensional description of
two-dimensional phenomenon.
The quantities alluded to are the material content of the sound or
signal in terms of all the frequency components, the frequency range
over which they occur, and the sound energy of each component. The
parsing of the sound or signal energy into individual components is up
to the scruples producer of the quantity (let's call it a "spectrum" for
brevity).
Angelo Campanella
Steve - 28 Jan 2008 03:57 GMT
On Jan 25, 10:35 am, "mwa...@gmail.com" <mwa...@gmail.com> wrote:
> > > On Thu, 24 Jan 2008 03:17:56 -0800 (PST), "mwa...@gmail.com"
>
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>
> - Show quoted text -
It occurred to me that we're replying based on our assumptions of what
you want to talk about in terms of frequency content. It would be
helpful if you would describe your project a little and who is the
intended audience for your presentation. Or maybe it's not a project
for someone at all? Anyway, the more background information the
better.
In short, a Fourier frequency analysis of a signal will give you a lot
of information, if you know what you want to look for. But it won't
give you everything. Depending on the type of signal and whether you
are looking for evidence of physical processes or perhaps perceptual
attributes, you may have everything you need or may need to look into
further signal analysis. Sorry if I have muddied the waters. As an
acoustical consultant once told me (only half-jokingly?), one
necessary conclusion of every funded study is that it needs futher
(funded) study.
Steve