Phonic i2600 Manual Del Usuario página 26

5. The i2600 can now perform the RTA and Auto
Equalization process, using the internally generated
pink noise, the internal tone generator or an external
test signal as testing signal source. The external test
signal must be provided by the user on input channel 2.
Depending on which test signal you choose to use, the
appropriate source must be selected in the RTA menu.
These options can be found to the top right of the main
menu.
6. If you wish to manually set your equalizer, it can be
done on this screen. If the Mic Level Wizard has already
been completed, then the real-world effect of your
EQ changes will be visible on screen in the real time
analyzer window.
Note: By double-clicking the frequency values at the
top of the EQ screen will allow you to view the exact
amplitude values of that frequency. This information will
be displayed at the top right-hand side of the RTA menu.
7. If satisfied with your manual adjustments, you can exit
the RTA menu and the settings of your equalizer will be
maintained on the input channels' 15-band EQs. The
Pink Noise, Test Tone or the external test signal will be
cancelled and normal input will be restored.
8. In order to get the new equalization settings, answer
"no" when the system requests to restore old graphic
equalizer settings.
Generator
The i2600 has both an internal pink noise signal and a sine-wive
tone generation (with selectable frequency). When the "Internal
Tone Gen" option is selected, users will be given access to the
Gain and Frequency controls for the internal tone generator.
Below this are the Generator Assignment options, where a red
cross indicates that the test tone/pink noise will not be sent to the
corresponding input/output channel.
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RTA and Auto Equalization
The following steps can be followed if the user wishes to use the
auto equalization function.
1. Push the Auto-Eq Tone button within the RTA menu of
the desktop software. This button is located next to the
Mic Level Wizard button.
2. Within the first page of the menu, you are able to select
whether the low frequency bands (25Hz and 40Hz)
and high frequency bands (10kHz and 16kHz) will be
included in the auto EQ analysis.
3. Users can also adjust the 'gain' of various frequencies of
the test signal by selecting "Adj Gain Tone".
4. The "When the single measured band is wrong the
system must" option let's users decide whether the Auto
EQ should insert a correction filter or whether to use an
average frequency calculated (as discussed in point 5).
5. It is also possible to select a +/- range of frequency
correction. This is important when using a tone for
calculating the EQ value as it helps create an average
for more accurate results. Possible ranges are available
between +/- 1 to 5%. This helps with more accurate
results if, for example, a 1kHz tone is used, the i2600
RTA will average 3 surrounding frequencies to get more
accurate results. If a 5% value is selected, the RTA will
measure 1000Hz, 950Hz and 1050Hz (the last two
representing minus and plus 5%, respectively).
6. Click the >> icon to continue on with the auto EQ process.
At this point the i2600 will read a reference curve. It may
take a few moments for the i2600 to read all bands.
Progress of the calculation is visible on screen.
i2600