Steinberg WaveLab Elements 7 Manual descargar pdf (Pagina 45)

4.2 Analysis 31

vocal notes in a song, for example. The graph used in WaveLab is sometimes called a 3D-

Spectrogram.

Displaying and viewing the graph

You can choose to analyze a selection of audio or an entire ﬁle. If you select a stereo record-

ing, a mix of the two channels will be analyzed. Once you have your region selected or no

region (in the case you wish to analyze the whole ﬁle) choose Analysis > 3D Frequency

Analysis.... The graph window will appear.

There is a scrub wheel that allows you to rotate the view around and a settings button that

displays the range of frequencies currently displayed. Click on this button to open the set-

tings dialog and edit the frequency range displayed, as well as to access other options.

Tip: The length of the selection affects the accuracy of the analysis. For short selections

the result will be very detailed. For longer selections (over a minute or so) the results are

generally less detailed as the harmonic content may vary between "measuring points", and

as such are not included in the graph. You might for example make a separate analysis of

the attack (beginning) of a sound, since the most drastic variations usually occur there.

Some example uses for 3D Frequency Analysis

The 3d Frequency Analysis graph in WaveLab can be used for many purposes, for example:

to see how the frequency spectrum is distributed in a mix.

as a basis for EQ-ing, so that you know which frequencies to reduce or boost.

to see which parts of the audio spectrum a certain background noise occupies (for

removing by ﬁltering).

for educational purposes - these graphs tell you a lot about how different sounds are

"built".

For detailed spectrum analysis, the 2D Spectrometer remains the best choice, as it provides

more accurate viewing and more options.

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Steinberg WaveLab Elements 7 Manual Pagina 45