HASSEB AUDIO OVER ETHERNET PRO User manual

October
20, 2018
HASSEB AUDIO OVER ETHERNET PRO INSTRUCTIONS MANUAL
VERSION 1.0
hasseb Inc.
[e-mail]
www.hasseb.fi
HASSEB AUDIO OVER ETHERNET PRO
hasseb Audio over Ethernet Pro is an easy to use and portable device used to
send and receive lossless, realtime audio using Ethenet network. The device is
compatible with AES67 standard and can be used as a standalone device or
together with other AES67 compatible devices.
The device operates as a simultaneous stream transmitter and receiver. The
device can transmit and receive analog audio signals using a standard 3.5 mm
audio plugs or digital audio signal using optical Toslink connectors. The device is
configured using a web user interface and mDNS (multicast Domain Name
System) protocol is supported to easily find the device IP addresses from the
network. For professional grade network audio systems PTP (Precision Time
Protocol) based time synchronization is required. The device can act as IEEE1588
Installation
The device is powered through the USB connector using a 5 volts USB power
supply.
DHCP (Dynamic Host Configuration Protocol) support is enabled by default, so
the device will assign an IP address automatically. All Ravenna devices and their
names and IP addresses connected to the network can be found using any
software, capable of searching the network for mDNS supported devices. If you
have normal domestic network router, the web user interface of you router can
also be used to find the IP addresses of the connected devices.
WEB USER INTERFACE
The device can be configured for network, audio, and stream settings using any
web browser. Writing the IP address of the device to the address field of your
web browser, the configuration page will be opened. You can find the IP address
of the device from your network router or using free third party software such as
Bonjour Browser or MT Discovery.

October
20, 2018
HASSEB AUDIO OVER ETHERNET PRO INSTRUCTIONS MANUAL
VERSION 1.0
hasseb Inc.
[e-mail]
www.hasseb.fi
Figure 1: A web browser is used to configure the device.
AUDIO SETTINGS
The audio settings are used to configure the input port as the analog 3.5 mm
audio jack or the optical Toslink port.
The default volume after restarting the device is set using the input and output
gain sliders. The signal buffer/latency in milli seconds can be set individually for
both the input and output streams.
The sample rate and resolution for the audio signal is fixed to 48 kHz / 24-bit.
VOLUME
The volume settings can be used to change the volume level for each audio
channel separately. The volume settings are not saved to volatile memory, thus
the default volumes set using the audio settings are used after reboot.
NETWORK SETTINGS

October
20, 2018
HASSEB AUDIO OVER ETHERNET PRO INSTRUCTIONS MANUAL
VERSION 1.0
hasseb Inc.
[e-mail]
www.hasseb.fi
The hostname, IP address, subnet mask, and default gateway can be set using
the web interface. The DHCP can also be enabled or disabled. By default the
device uses DHCP to assign the network settings. The default hostname for the
device is hasseb-AoE-XX-XX, where XX-XX are the last two octets of the device
MAC address.It is also possible to force the device to PTP slave mode if
necessary. After configuration of new network settings, the device will reboot
automatically.
STREAM SETTINGS
The input stream settings are used to choose the AES67 stream received from
the network. The chosen stream name is stored to the internal memory of the
device and will be used by default after power down. It is also possible to select
the input stream manually by adding the SDP file for the input stream.
The stream sent by hasseb Audio Over Ethernet Pro device will be named as
AES67-stream (on ‘network_hostname’), where ‘network_hostname’ is the
hostname of the device as defined in network settings (for example AES67-
stream (on hasseb-AoE-AB-CD)).
AES67 standard defines the audio stream following RTSP (Real Time Streaming
Protocol) used also for example in internet radio stations. The address of the
output stream is visible on the “RTSP address for the output stream” field. In
addition to another hasseb Audio Over Ethernet device, the output stream can be
listened using any media player supporting RTSP protocol, such as VLC media
player.
By default the IP address for the output data stream is chosen randomly
between 239.1.1.1 and 239.255.255.255. If a static IP address is required, the IP
address can be manually added by choosing the “Add IP address manually for the
output stream” option and adding the wanted IP address to the “IP address”
field. The SDP file of the output data stream is visible on the “SDP file for the
output stream” field.
STATUS LED
The green LED indicates the status of the device. The LED will blink once a second
when the device is operating properly.
RESET FACTORY DEFAULTS
If something goes wrong with the network settings and you cannot access the
device anymore through the network, you can reset the factory defaults using
the push button on the circuit board. To access the button you need to open the
enclosure.

October
20, 2018
HASSEB AUDIO OVER ETHERNET PRO INSTRUCTIONS MANUAL
VERSION 1.0
hasseb Inc.
[e-mail]
www.hasseb.fi
To reset the factory default settings, press the push button and power up the
device. Keep the push button pressed for 10 seconds. This will reset the setting
to factory defaults. The default network configuration is DHCP on.

October
20, 2018
HASSEB AUDIO OVER ETHERNET PRO INSTRUCTIONS MANUAL
VERSION 1.0
hasseb Inc.
[e-mail]
www.hasseb.fi
Specifications
Input voltage
5 VDC
Input current
300 mA
Input audio voltage
2.1 VRMS
Output audio voltage (1 kΩload)
2.1 V
RMS
Operating temperature
0 – 50 °C
Dimensions
65 mm x 65 mm x 30 mm
Weight
100 g