Dodotronic HI-SOUND DR User manual

HI-SOUND DR user guide DODOTRONIC
Hi-Sound DR
parabolic
microphone
High-quality, very low-noise audio parabolic icrophone
USER GUIDE
0.4

HI-SOUND DR user guide DODOTRONIC
Overview
Hi-Sound DR is a stereo parabolic microphone which comes from many years of studies
and prototyping in order to provide the best solution without compromise in terms of
portability, high quality and low noise.
For stereo parabolic microphones the primary reflective area of the disc is located at the
sides with the top and the botto giving a s aller reflection to the sensor. his is
the reason behind the ∞ shape of this new parabolic microphone.
he stereo effect is greatly increased by the septum that splits the two halves with
two different focuses placed at the center of the sensors.
his parabolic microphone is designed to be al ost invisible; the primary material is
polycarbonate which gives the perfect combination of strength, flexibility and
transparency. he handle is composed of aluminum which improves overall mechanical
strength and decreases the weight.
Innovation
One of the unique standout features of this new device is the possibility to re ove the
two wings so they can be stacked together for easy transportation, placed within a
custom bag. his solution keeps the original parabolic shape while folded disks hardly
come back to the original shape.

HI-SOUND DR user guide DODOTRONIC
his makes it possible for users to travel abroad with the device, or simply condense it to
a smaller size to bring it to difficult-to-access locations.
he two halves are kept
together by a simple
machanism.
o connect them together
place the two halves on a
flat surface.
No tool is needed to
separate and to
reconnect the two
halves.
Align the buttonholes with
the screws.
Press up to align the
screw

HI-SOUND DR user guide DODOTRONIC
Place the microphone in
the correct position,
alligning the magnets with
with the two circular
fixing plates,
Aluminum tripod mount with whitworth
thread.

HI-SOUND DR user guide DODOTRONIC
The microphone
The microphone integrates four AOM-5024 (with superior signal to noise ratio) capsules,
two on each side. he combination of dual sensors on each side improves sensitivity by
3dB.
Its shape is designed according to rigorous simulation modeling as well as testing in an
anechoic chamber.
he microphone can easily be removed by simply sliding it out of place, as it is kept in its
correct position with four neodymium magnets.
Hi-Sound DR can be equipped with two microphone versions
Hi-Sound DR jack, with a
stereo 3.5mm gold-plated
jack output.
In order to power the
sensors, a recorder with a
jack input function via PIP
(plug in power) is
required, so please check
the user guide of the
given recorder to check
for this feature.
Hi-Sound DR XLR, with a
double XLR output.
For recorders equipped
with an XLR input, 24V or
48V phantom power is
required.
Cables are fully shielded and insulated to keep electromagnetic interference to an
absolute minimum.

HI-SOUND DR user guide DODOTRONIC
he four AOM5024 sensors are the best in class in terms of signal to noise ratio and
sensitivity. hey are faced towards the center of each parabolic wing so the sensitivity is
maximized. he wide surface area close to the sensors increases sensitivity since the
soundwaves hitting the sensors are not spread at the sides. he orientation also allows
for better i unity against any external, unwanted noise.
The active surface
With a wider diameter, a lower minimum frequency can be reflected, in comparison to
standard parabola designs. With a diameter of 70 c when mounted, the tight
connection of the two wings makes the disc vibrate as if it was a single component.
The small dimension of the microphone creates a very small obstacle to the incoming sound
meaning the full surface area acts as an acve reector.

HI-SOUND DR user guide DODOTRONIC
Optional
Windshield
An optional Lycra windshield greatly
reduces wind-generated interference on
the parabola surface. Please remember
that the best recordings are made when
wind flow is minimal.
Transport bag
he custom transport bag is specifically
designed to bring the Hi Sound DR with
you on field recording sessions.
he fabric is waterproof and durable
allowing it to resist harsh environments.
A specific internal pocket is designed to
bring the recorder and headset in the
protected section of the bag.
Likewise, this bag is ideal to bring your
parabola abroad, keeping it safe and
protected.
When collapsed dimensions are 16 x 46 x 37 cm.

HI-SOUND DR user guide DODOTRONIC
How to make recordings
A complete recording system is composed by:
Handheld audio
recorder
Headphones
Hi-Sound DR

HI-SOUND DR user guide DODOTRONIC
Specifications
Outer diameter 70 cm
Focus depth 14 cm
Weight: 1080g
Disc Material polycarbonate
Audio range (70Hz – 0KHz)
Di entions when collapsed:
16 x 46 x 37 cm
AOM-5024
Sensor: AOM-5024 from http://www.primomic.com/
Sensitivity: -24 ±3dB @ 1kHz
Rated Voltage: 3V
Output impedance @ 1kHz: 2,2 kΩ
Current consumption:(3VS with 2.2 kΩ RL) 500 µA
Signal-to-Noise Ratio:(1kHz, 94 dB input, A-weighted) 80 dB
Operating Voltage Range 1 ~ 10 VDC
Maximum SPL Input ( HD<3%) 110 dB

HI-SOUND DR user guide DODOTRONIC
Polar plot

HI-SOUND DR user guide DODOTRONIC
Confor ity declaration
model: Hi-Sound DR
Ultramic is in conformity with the protection and compliance requirements of the
following EC Directives:
EM 55011
EN 61326-1
EN 61000-4-2
EN 61000-4-3
EN 61000-4-8
Technical assistance and support
Dodotronic di Ivano Pelicella
via Giuseppina Saragat, 6
00073 Castel Gandolfo RM
Italy
VA I 07343571001
www.dodotronic.com
[email protected]
Prizewinner at S
microelectronics
Neapolis Innovation
Made in Italy
rev. 0.4 20211125