Alto DYNAMATE Manuel utilisateur
LTO
LTO
TM
DYNAMATE
User's Manual
Version 1.5
---English---
LTO
LTO
TM
Safety Instructions
All safety and operating instructions should be read before the equipment is installed and operated. We recommend that
installation be carried out by an authorised mobile electronics installation company. Please contact your local ALTO
Mobile distributor for a list of authorised installers in your country.
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To reduce the risk of electric shock and potentially damaging the equipment, do not disassemble the product. No user
serviceable parts inside; refer servicing to qualified personnel.
The equipment should be protected from moisture and rain, especially if mounted in the vehicle's trunk area or any
location that may be susceptible to water ingress.
The equipment should be situated so that its location or position does not interfere with its proper ventilation. For
example, the product should not be situated under carpeting or in a totally sealed enclosure. Trunk-mounted equipment
/amp racks should be well ventilated, using forced air cooling fans if necessary. The equipment should be situated away
from heat sources such as engine exhaust systems and radiators.
This product is designed for vehicles with a 12 VOLT NEGATIVE GROUND electrical circuit. This product must not be
used in vehicles that use a 24 Volt supply or a positive ground electrical circuit.
Great care must be taken when wiring the product to the vehicle's electrical system. Unless you are fully familiar and
trained in wiring automotive electrical systems, installation should only be undertaken by a qualified automotive electrician.
LTO
LTO
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Preface
Dear Customer,
Thank you for choosing the ALTO Mobile DYNAMATE digital dynamic sound processor. We hope you'll love the results
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you get from it and enjoy using it as much as we enjoyed developing it.
The DYNAMATE is the result of considerable development work in our R&D centres in Europe and the Far East and is a
close cousin of ALTO's professional audio products. We've been designing products for musicians and recording studios
for many years - the product you now have in your hands has a fine pedigree.
The core of our digital audio products is a sophisticated DSP (Digital Signal Processor) coupled with state-of-the-art
algorithms developed by our software team over the last 7 years.
The car audio environment is worlds away from the controlled listening area of the recording studio, and yet much of the
sound processing so important to recording engineers can be applied with spectacular success to the automotive
environment. ALTO Mobile is a specialist division of audio and computer software engineers, but above all we're car
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audio enthusiasts. We love the challenge of trying to reproduce studio quality sound inside a moving vehicle.
We're convinced you are an important member of our team and we listen to what you say and take on board your
suggestions. It's this feedback that helps us create the products you want. Thank you.
ALTO MOBILE TEAM
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In purchasing DYNAMATE, you purchased a very powerful dynamic processor that is easy to use. No programming or
complex skills are required since it's just a case of choosing a preset function. DYNAMATE does all the required processing
dynamically - that is, automatically in response to the changing level and characteristics of the music.
Once it's all correctly installed, you'll be eager to play with your new buy. If the product has been installed for you there's
nothing stopping you so go ahead - just read the following warning first and remember to come back and read the rest,
of this manual.
Important Warning Take it easy at first. Avoid operating your system at high volume initially. When you switch from
Bypass mode to one of the active modes, the dynamic AGC (Automatic Gain Control) may increase the overall level
substantially and this could damage speakers if you're not expecting it.
Keep the volume level down until you are familiar with the unit.
If you've purchased the product but haven't had it installed in your vehicle, that's obviously the first thing you'll need to do.
We strongly recommend that you have the unit professionally installed by a specialist company authorised by the ALTO
Mobile distributor in your country. The installation instructions in this manual are for guidance only and are not intended
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to be a thorough explanation of all the steps involved in correctly fitting this unit. The instructions assume that the person
installing the equipment has been trained to carry out such work.
Once you've had a quick play with it you'll have some idea of what the DYNAMATE can do, but it's worth taking time to
understand each of the preset algorithms and the kind of results you can expect. For example, the effect of the processing
is in many cases influenced by the level of the input signal across different frequency bands - something that may not
have been immediately obvious from your initial experiments.
Understanding how each group of presets manipulates the sound will help you to know when to apply a certain preset
for best results.
It's also worth mentioning that while DYNAMATE's processing abilities may be greatly appreciated even when the vehicle
LTO
LTO
TM
Introduction
is stationary, it really comes into its own when the vehicle is moving. It's then that the full benefits of the dual-band dynamic
AGC come into play, helping to compensate for road and engine noise. It does this by dynamically tailoring the sound in
much the same way as a sound engineer optimises the recording so that it sounds well-balanced on a small radio as well
as a ten thousand-dollar hi-fi system.
LTO
LTO
TM
Introduction
The DYNAMATE's dynamic sound processing algorithm is based on a "multi-band" processing concept, splitting the
original full band signal into two "sub-bands". This results in a band of lower frequencies and a band of mid/high frequencies,
allowing the subsequent signal processing to be applied separately to each - the low frequencies (with their higher energy
content) and the mid/high frequencies. This dual band technique - along with the settings for the attack and release times
programmed for each preset - successfully prevents the bass from dominating the way in which the processing is applied
and prevents the pumping effect that used to be common with dynamic processors.
Once split into the two separate bands, DYNAMATE applies selective processing to each of the bands before re-combining
the bands and applying additional processing. The sound processing covers several forms including gain control, parametric
equalization, high- and low-pass frequency filtering and dynamic balancing of the music's energy levels (dynamic
companding). Companding is a combination of signal compression and expansion used extensively in pro audio recording,
production work, noise reduction and live performance applications. It's basically a variable gain device, where the amount
of gain used (which can be a positive or negative value) depends on the level of the dynamically changing input.
LTO
LTO
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Brief Technical Overview
LTO
LTO
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User Interface
1. Use these controls to match the pre-amp output level from your car audio source unit. If a dotInput Gain Controls:
shows on the display next to one or both the digits, this indicates clipping (excess signal level/distortion) of one or both
the channels of the input stage. Set the input level so that the LED dots light only very occasionally on musical peaks.
DYNAMATE MAX Input level: 15 V
12
3 4
LTO
LTO
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User Interface
Input/Output Gain Setting: Proper setting of the input and output levels is important in achieving the best signal-to-noise
ratio. Use of test tones and an oscilloscope will greatly assist in setting the optimum gain levels. For this reason, system
setup is best left to a professional car audio installer.
However, if you need to get up and running without professional help, follow these steps and you won't go far wrong.
Select Preset 09.
Set the ALTO's Output Gains to their 12 o'clock positions.
Turn the Input Gain controls fully counter-clockwise (minimum gain).
Turn the volume control on your CD player to about 75%.
Turn your amplifier input gains to a low setting (say 25%).
Now play some music and increase the ALTO's Input Gains until you see the red dots (next to each digit on the display)
begin to flash occasionally on musical peaks. This will in most cases be the optimum setting for the input gains. Note that
setting the volume control of your CD player at 75% rather than maximum is done to ensure that the signal output from
the player is pure and undistorted.
Pause the music. Now set the ALTO's Output Gains to about their 3 o'clock position (i.e. 75% of maximum) and set your
amplifier input gains to their Minimum Gain position (i.e. where the amp gives its lowest output level).
Note that the maximum output level from the ALTO processor exceeds 9 volts.
Play some music and gradually increase your amplifier's gain controls until you reach your preferred maximum listening
level, or where you begin to hear any stress from the speakers. If the music sounds distorted with the amp gains at
minimum, reduce the Output Gains on the ALTO unit.
2. Use these controls to match the optimum pre-amp input level of your amplifier or active crossover.Output Gain Controls:
DYNAMATE MAX Output level: 9.5 V
LTO
LTO
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User Interface
3 Use these to select the required preset number as viewed on the display. There are 8 groups of different. Up/Down Keys:
processing types, and each of these has 8 variations. Refer to the description of the preset groups for an explanation
of how each group differs.
4 While searching using the keys, the currently selected preset remains active. Once you have. Enter Key: UP/DOWN
decided on a new preset (the preset number is showing on the display), press and DYNAMATE will apply theENTER
new processing algorithm.
During the device initialisation the display digits will blink and, after a brief time, will show the number of the last loaded
preset. You can then scroll through the 64 pre-loaded presets and select an alternative program.
During preset scrolling, the display blinks while showing the ID numbers of the various presets. After a few seconds, if a
new selection is not confirmed, the display will stop blinking and return to show the number of the currently active preset
ID.
Pressing the key for a few seconds switches the system into BYPASS mode (the display shows a blinking 'bP').ENTER
To exit this status, simply press the or key.UP DOWN
Preset ID "00" also represents a BYPASS.
LTO
LTO
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Device Initialisation, Preset Selection & Bypass
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