MONACOR EAM-17DT Microphone Array Instruction Manual

: October 29, 2023
: MONACOR

Table of Contents

Applications
Important Notes
Connection to a Dante Network
Setting up the Dante Network
Operation
Specifications
References
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EAM-17DT Microphone Array
Instruction Manual

Microphone Array for Dante Audio Networks
These instructions are intended for installers of audio systems with knowledge of network technology. Please read the instructions carefully prior to operation and keep them for later reference.

Applications

This desktop microphone is specially designed for audio systems based on Dante audio networks.
It consists of an array of 17 electret capsules. In contrast to a conventional microphone, this results in a particular directionality allowing excellent speech intelligibility even when the person speaking is at a greater distance from EAM-17DT (≈ 80 cm), when the person speaking is moving sideways or when the persons speaking do not have the same height. This desktop microphone is ideally suited for lectures, discussions, announcements and video conferences. A configuration software for computers with Windows operating system can be used to set the desired gain, to activate an impact noise filter and to define the operating mode of the talk button.
An LED will indicate the operating status of the microphone via its colour. The microphone is supplied with power via the network using PoE (Power over Ethernet).
Windows is a registered trademark of Microsoft Corporation in the United States and other countries.

1.1 Dante
Dante, an audio network developed by the company Audinate, allows transmission of up to 512 audio channels at the same time. Dante (Digital Audio Network Through Ethernet) uses a common Ethernet standard and is based on the Internet protocol. The transmission of audio signals is uncompressed and synchronised, with minimum latency. The advantage over analogue audio signal transmission is a cost-effective connection of components via standard network cables and low susceptibility to interference, even in case of long transmission paths. In addition, signal routing between components that have once been connected can be changed by software at any time.
In the Dante network, signal sources act as transmitters and pass on their signals to receivers.
The program “Dante Virtual Soundcard” from Audinate also allows computers to be used as signal sources, and signals from the Dante network can be recorded on the computer.
Even if the audio signal of the microphone is monophonic, EAM-17DT offers two transmission channels that can be connected independently in the Dante network. The transmission channels are assigned to any receiving channels in the Dante network via the configuration program “Dante Controller” (☞ chapter 4).
Dante® is a trademark of Audinate Pty Ltd.

Important Notes

The product corresponds to all relevant directives of the EU and is therefore marked with CE.
The product corresponds to the relevant UK legislation and is therefore marked with UKCA.

The product is suitable for indoor use only.
Protect it against dripping water, splash water and high air humidity. The admissible ambient temperature range is 0 – 40 °C.
For cleaning the product only use a dry, soft cloth; never use water or chemicals.
No guarantee claims for the product and no liability for any resulting personal damage or material damage will be accepted if the product is not correctly used or not expertly repaired.

If the product is to be put out of operation definitively, dispose of the product in accordance with local regulations.

Connection to a Dante Network

To integrate the microphone into a Dante network, knowledge of network technology is essential.
Use a Cat-5 or Cat-6 cable to connect the RJ45 connector (3) of EAM-17DT to an Ethernet switch that supports at least Fast Ethernet (transmission rate 100 Mbit /s) and supplies PoE (Power over Ethernet according to the standard IEEE 802.3af-2003). The cable can be guided out to the rear through the cable hole (4).
The interface of EAM-17DT is preset for automatic address assignment and can be configured via the program “Dante Controller” (☞ chapter 4.1).

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Setting up the Dante Network

EAM-17DT is configured as a transmitter in the Dante network by means of the program “Dante Controller”, available as a free download on the Audinate website. The settings made via the program will be saved in the corresponding transmitters and receivers of the Dante network so that the program is only required for network configuration but not for normal operation.
Download and install the program “Dante Controller” via the following Internet address on the computer on which the program is to be executed:
www.audinate.com/products/software/dante-controller

4.1 Device configuration with the Dante Controller

Start the Dante Controller.
Wait until the desired Dante receiver and EAM-17DT (under “Transmitters”) appear in the matrix.
Note: If EAM-17DT or a connection partner does not appear, the reason may be that the corresponding device
– is not switched on,
– is in a different subnet,
– is not able to synchronise with the other Dante devices.
However, for one of the latter two reasons, the Dante device should at least be listed under the tab “Device Info” or “Clock Status” in the “Network View” window.
To solve the problem quickly, it may help to turn the device off and on again or to disconnect and reconnect the LAN. For more information, refer to the Audinate user manual for the Dante Controller.
In the menu bar of the Dante Controller, select “Device/Device View” or use the shortcut Ctrl + D. The “Device View” window will appear.
➂ “Device View” of EAM-17DT
Select EAM-17DT from the drop-down menu appearing in the bar underneath the menu bar.
In the third bar, various information about the device can be displayed and settings can be made. Select the tab “Device Config” (☞ fig. 3).
In the field “Rename Device”, the name used for the device in the Dante network can be changed (e. g. to a specific name with a reference to the installation location). Confirm with “Apply”.
If necessary, adjust the “Sample Rate” to the desired Dante receiver or set a different common sample rate for both devices.
The tab “Network Config” can be used to change the network configuration for the Dante interface of EAM-17DT if required.

4.2 Routing with the Dante Controller
In the “Network View” window under the tab “Routing”, the transmitters of the Dante network are arranged in columns (“Transmitters”) and the receivers in rows (“Receivers”). This matrix can be used to assign the transmission and receiving channels of the devices to each other.

In the row of the desired Dante receiver, click ⊞ to show its receiving channels and in the column of EAM-17DT, click ⊞ to show its transmission channels (☞ fig. 4).
Starting from the column of the desired transmission channel of EAM-17DT, navigate to the row of the desired receiving channel and click the field at the intersection.
Wait until the field shows a green circle with a white tick symbol ✔.
Routing from EAM-17DT to WALL-05DT
An English user guide for the Dante Controller can be downloaded from the Audinate website at: www.audinate.com/learning/technical- documentation

Operation

The LED (1) lights up as soon as the device is supplied with power via its network connection. The colour of the LED will indicate the operating status: red: the microphone is mute green: the microphone is on The function of the talk button (2) depends on the setting MODE in the configuration software (☞ chap.5.1).

5.1 Settings via the software
For EAM-17DT, some settings can be made via aconfiguration program available for download from the Monacor website (www.monacor.com).
For setting up EAM-17DT via the program, connection to a Dante network is not required. It is sufficient to connect the microphone to a PC via a PoE switch if the network connection of the PC is set to DHCP.
After starting the program, the following window will appear:

Start screen

Click the button DISCONNECTED. All EAM17DT devices found in the network will be listed and the button will change to CONNECTED. The device names from the Dante network will be listed under NAME.
Double-click the desired microphone on the list. The configuration window will open on the left.

Configuration window and device list
GAIN: to set the gain in dB (volume); the vertical bar graph above MUTE will show the current signal level
MODE: to select the operating mode of the talk button (2)
ON: briefly press the button to switch the microphone on or to mute it again (initial state = mute)
OFF: briefly press the button to mute the microphone or to switch it on again (initial state = on)
PTT: to talk, keep the button pressed (push to talk)
PTM: to mute the microphone, keep the button pressed (push to mute)
MUTE will indicate the operating status [like LED (1)]; click MUTE: to switch microphone on/mute (only if MODE = ON or MODE = OFF)
Click CALL: to identify a microphone, its LED (1) will flash for 10 seconds
LOWCUT: high-pass filter to suppress impact noise (structure-borne noise)
Click ⊞: to close the configuration window

Specifications

Microphone type: . . . . . back-electret (array consisting of 17 capsules)
Frequency range: . . . . . 80 –20 000 Hz
Directionality: . . . . . . . . ☞ figs. 8, 9
max. SPL: . . . . . . . . . . . 106 dB
Dante output signal
Number of channels: 2
Resolution: . . . . . . . . 16 – 32 bits
Sampling rate: . . . . . 44.1 – 96 kHz
Data interface
Ethernet: . . . . . . . . . RJ45 connector
Power supply
Power over Ethernet: PoE according to
IEEE 802.3af-2003
Power consumption: 2.3 W
Housing material: . . . . . metal
Ambient temperature: . 0 – 40 °C
Dimensions (W × H × D): 348 × 31 × 60 mm
Weight: . . . . . . . . . . . . 386 g

Frequency response

Polar pattern, horizontal

Polar pattern, vertical

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A-2135.99.02.10.2022
MONACOR INTERNATIONAL GmbH & Co. KG
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