[ardour-dev] Advice on FFT Analysis ... How to Read it, and What Can it Tell You?
flowbot at machinehasnoagenda.com
Sat Nov 4 13:56:14 PST 2006
Jack O'Quin wrote:
> On 11/3/06, Shayne O'Connor <flowbot at machinehasnoagenda.com> wrote:
>> i'm gettin ready to master some tracks, so i'm trying to get used to the
>> idea/purpose of FFT Analysis ... here's a composite graph of a short
>> region of all my tracks from a session:
>> ... and here's the guitar and bass alone:
>> ... would i be right to assume that this graph is suggesting the bass
>> and guitar are a bit close in frequency range and need to be eq'd to
>> avoid muddiness?
>> any tips on how to get the most out of the FFT Analysis would be much
>> appreciated ;)
> Your xaxis needs to show the low end more clearly. Try something like
> the spectrum analyser or the HDEQ in jamin. Those frequency axes are
> based on the 1/3 octave values in a standard 30-band EQ. It starts out
> like this...
> 25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630
> You need that kind of low-end resolution to see the difference between
> guitar and bass spectra. Their ranges are only an octave apart.
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