Auto Ta And Eq (Auto-Time Alignment And Autoequalizing) - Pioneer DEH-X8800BHS Mode D'emploi

6
Turn the M.C. dial to select an appropriate cut-off frequency for the speaker unit
(filter) selected in step 4, then press to confirm.
Network mode:
[1.25K] to [12.5K] (if you choose [HIGH] or [MID LPF])
[25] to [250] (if you choose [MID HPF] or [SUBWOOFER])
Standard mode:
[50HZ] to [200HZ]
7
Turn the M.C. dial to select an appropriate slope for the speaker unit (filter)
selected in step 4.
Network mode:
[–6] to [–24] (if you choose [HIGH], [MID HPF] or [MID LPF])
[–12] to [–36] (if you choose [SUBWOOFER])
Standard mode:
[–6] to [–24]
Auto TA and EQ (auto-time alignment and auto-
equalizing)
(Only for DEH-X8800BHS)
Auto-time alignment automatically adjusts the time alignment according to the
distance between the listener and each speaker.
The auto-equalizer automatically measures the vehicle's interior acoustics, and then
creates an equalizer curve based on that information.
WARNING
A loud tone (noise) may be emitted from the speakers when measuring the vehicle's interior acoustic
characteristics. Never perform auto TA and EQ measurement while driving.
Before performing the auto TA and EQ function
Important
• Perform auto TA and EQ in a place as quiet as possible, with both the vehicle engine and air
conditioning switched off. Also turn off any car phones or cellular phones in the vehicle, or remove
them from the vehicle. Sounds other than the measurement tone (such as ambient noise, engine
sound, telephones ringing) may prevent correct measurement of the vehicle's interior acoustic
characteristics.
• Be sure to perform auto TA and EQ using the supplied microphone. Using another microphone may
prevent measurement or result in incorrect measurement of the vehicle's interior acoustic
characteristics.
• To perform auto TA and EQ, the front speakers must be connected.
• When this unit is connected to a power amp with input level control, auto TA and EQ may not be
possible if the power amp's input level is set below the standard level.
18
En
• When this unit is connected to a power amp with an LPF (low pass filter), turn off the LPF before
performing auto TA and EQ. Also set the cut-off frequency for the built-in LPF of an active subwoofer
to the highest frequency.
• The time alignment value resulting from auto TA and EQ is calculated by a computer and is the
optimum delay time for producing accurate results. Be sure to use the resulting value, even though it
may differ from the actual distance when:
– The interior of the vehicle strongly reflects sound, and delays occur.
– The LPF on active subwoofers or external amps delay the lower sounds.
• Previous settings for auto TA and EQ will be overwritten.
• When connecting tweeters, please confirm the tweeter's usable frequency range. When you set the
cut-off frequency, set a value that is higher than the lowest usable frequency of the tweeter.
• Auto TA uses a range higher than 10 kHz for measurement. Therefore, using a tweeter that cannot
reproduce sounds in the 10 kHz frequency range may cause damage to the tweeter. When auto TA
and EQ is performed, be sure to set the appropriate cut-off frequency. Also, use a tweeter that can
reproduce 10 kHz at the lowest usable frequency.
Performing auto TA and EQ
You can perform the auto TA and EQ function using the microphone supplied with the
unit.
CAUTION
• Thoroughly check the conditions before performing auto TA and EQ, as the speakers may be
damaged if this function is performed under the following conditions:
– The speakers are incorrectly connected. (For example, when a rear speaker is connected to a
subwoofer output.)
– A speaker is connected to a power amp delivering output higher than the speaker's maximum
power input capability.
• Do not turn off the vehicle while the measurement is in progress.
• If the microphone is placed in an unsuitable position, the measurement tone may become loud and
measurement may take a long time, resulting in battery drainage. Be sure to place the microphone in
the specified location.
NOTES
• The fader/balance settings return to their center positions by performing the auto TA and EQ
(page 21).
• When a subwoofer is connected to this unit, the subwoofer will be adjusted automatically to both the
subwoofer output and high pass filter setting for the rear speaker by performing the auto TA and EQ.
1
Park the vehicle in a quiet place, close all the doors, windows, and sun roof, and
then turn the engine off.
If the engine is left running, engine noise may cause incorrect auto TA and EQ
measurements.
2
Attach the supplied microphone to the center of the headrest of the driver's seat,
facing forward.