Alesis ProTrack Guide D'utilisation Rapide page 4

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BOTTOM, TOP & BACK PANEL FEATURES
1.
CH 1/2 INPUTS – Connect your external sound sources to these inputs.
Each input can accept a 1/4" or XLR connection. This allows for several
connection options:
a.
2 microphones
b.
1 stereo source (such as a CD player, sampler, or drum machine).
c.
1 or 2 mono sources (such as guitars). (Note: When using a high-
impedance instrument like a guitar, we recommend using a preamp to
lower the signal's impedance for the recorder.)
If you only use one of these two inputs, you may want to set the RECORD
MODE switch to "Mono" and turn down the gain knob of the unused input.
The recorder's built-in microphones will not be used while something is
connected to one or both of the CH 1/2 INPUTS.
2.
HEADPHONE OUTPUT – Connect your headphones using a 1/8" stereo
connector to this output.
HEADPHONE VOLUME wheel on the right side panel. During playback only
the iPod will be heard. All other times, the inputs will be heard.
WARNING: Turn the HEADPHONE VOLUME all the way down before turning
on the unit to prevent the power-on "click" noise in your headphones.
3.
MICROPHONES – Record your source with these built-in condenser
microphones if you are not using the CH 1/2 INPUTS.
4.
SLED – This plastic cover slides and snaps onto the recorder to protect and
secure the iPod while it is docked.
5.
DOCK – Connect your iPod here before attaching the SLED.
6.
MENU – Acts as the "Menu" button of your iPod.
7.
ENTER – Acts as the "Enter" button of your iPod.
8.
LED METERS – Measures audio signal levels. While recording, these meters measure the input levels of the CH 1/2
INPUTS or built-in MICROPHONES. (If the LIMITER is on, these readings are taken after the LIMITER has processed
the signal.) During playback, these meters measure the iPod playback level. Also, the top two red LEDs will flash
simultaneously when the batteries are getting low.
9.
CHANNEL 1/L GAIN – Adjusts the input gain for Channel 1.
10.
CHANNEL 2/R GAIN – Adjusts the input gain for Channel 2.
11.
BATTERY COMPARTMENT – Insert 4 AAA batteries here for up to 2.5 hours of power. The top two red LEDs will flash
simultaneously when the batteries are getting low.
12.
STAND MOUNT – You can use this hole to mount the iPod Recorder on a stand, such as a standard camera stand,
allowing for hands-free recording.
SIDE PANEL FEATURES
1.
HEADPHONE VOLUME – Adjusts the level of the headphone output.
Note: Feedback can occur if the CHANNEL GAIN knobs are turned up high with the
headphones connected. Decrease the gain or HEADPHONE VOLUME if this happens.
2.
LIMITER – Engages the stereo limiter. This prevents hard "clipping" of the recorded
signal in your iPod. However, it is still possible to overdrive the LIMITER with too hot of
a signal, resulting in an unpleasant "pumping" sound or even distortion. Decrease the
CHANNEL GAIN levels if you experience noticeable Limiter artifacts.
3.
RECORD MODE – Specifies whether the two analog inputs will be recorded to the iPod
in stereo or mono (summed). When recording mono input sources, such as a guitar or
microphone, we recommend setting this switch to "Mono".
4.
KENSINGTON LOCK SLOT – You may use this Kensington lock slot to secure the
iPod Recorder to a table or other surface.
5.
OPEN – Pull this switch towards the bottom of the recorder to unlock and remove the
plastic sled from the recorder when you want to remove your iPod.
6.
PHANTOM POWER – This switch activates and deactivates phantom power. When
activated, phantom power supplies +48V to both XLR mic inputs.
microphones do not require phantom power, but most condenser microphones do.
Consult your microphone's documentation to find out whether it needs phantom power.
WARNING: Do not turn on PHANTOM POWER unless your microphones require it.
7.
iPOD CHARGE ON/OFF – Enables or disables the iPod Recorder's ability to charge
your iPod while it is docked. You may only charge your iPod with the recorder while it is
powered by the included AC adapter or an external battery pack.
8.
POWER SWITCH – Turns the iPod Recorder on and off. Be sure to turn off your
recorder when not in use to conserve battery power.
9.
POWER INPUT – This is where you may plug in the included power adapter. Connect it to the recorder before you plug
the power adapter into an electrical outlet.
Note: If you are using an external power adapter, such as a battery pack, its polarity must be center positive. See
TECHNICAL SPECIFICATIONS for more information on external battery packs.
The headphone volume is controlled by the
Most dynamic
2
Bottom
1
1
2
3
4
5
6
7
8
10
9
Top
Right
Left
4
3
2
1
We recommend leaving the
iPOD CHARGE feature off
while recording.
may
introduce
noise into your recordings.
11
12
Back
5
6
7
8
9
Charging
low-level

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