Ocean Sonics icListen User manual

icListen User Guide
Ocean Sonics Ltd.
110 Parkway Dr.
Truro, NS, B6L 1N8 Canada
Phone: [phone]
www.OceanSonics.com
V2021.1

Congratulations on your purchase of an icListen Smart Hydrophone.
Ocean Sonics is dedicated to your success. We want to ensure you
collect the best data possible and that you get everything out of
your data that you need. This user guide will help you navigate how
to most eectively use your hydrophone, from basic set up and
conguration through complex deployments.
Ocean Sonics recommends that you review the entire user guide
before you begin using your hydrophone. If you have any questions
that are not answered in this document, please do not hesitate to
contact us for clarication.
With the purchase of every hydrophone, Ocean Sonics oers an
Introduction to icListen training course. This is an hour long session
with an Ocean Sonics team member that will get you comfortable
using your icListen Hydrophone and help fast track your ocean
sound data collection projects.
Many of the deployments featured in this guide use additional
Ocean Sonics tools and accessories. If you are interested in
purchasing these tools, or if you would like to know if they are useful
for your data collection needs, contact our technical sales team.
To request your Introduction to icListen training course, or if you need
assistance of any kind, please contact:
Suppor[email protected]
For any other inquiries please contact:
[email protected]
You can also contact us via phone:
Head oce in Truro, Nova Scotia: 1(902)655-3000
West Coast oce in Vancouver, BC: 1(236) 666-8715

Contents
Introduction .................................................................1
Compatibility ................................................................3
Getting Started with your icListen ..............................................4
Included with your icListen............................................. 4
Step 1: Connect Cables ............................................... 5
Step 2: Setup the icListen.............................................. 6
Step 3: View and record real-time data .................................. 7
Powering your icListen ........................................................8
Operating Power ..................................................... 8
Power O ........................................................... 9
Standby Mode ...................................................... 10
Charging the icListen ................................................ 10
Buzzer Patterns ..................................................... 11
icListen Web Interface .......................................................12
Home Page ........................................................ 12
About Page ........................................................ 13
Settings Page....................................................... 14
Data Page ......................................................... 21
Operations Page .................................................... 22
Deployment considerations ...................................................24
Real-Time Deployment Scenarios .............................................26
Directly Cabled to a PC .............................................. 26
Using a Launch Box ................................................. 28
Float Collar ........................................................ 29
Tripod ............................................................. 30
Autonomous Deployment Scenarios ...........................................31
Stand Alone ........................................................ 31
With a Battery Pack ................................................. 33
On a Buoy ......................................................... 34
Data Retrieval ..............................................................35
Maintenance and Storage ....................................................37
Firmware .......................................................... 37
Cleaning .......................................................... 38
Connector Care ..................................................... 38
Storage............................................................ 39
File System Care .................................................... 39
Battery Care ....................................................... 40
icListen Servicing ................................................... 41
icListen Connector Information ........................................ 41

icListen User Guide
1v2021.1
Introduction
The icListen Smart Hydrophone combines high signal integrity, data storage capacity, low
power, and small size with the ability to process sound data in real time. This guide provides
comprehensive information on how to congure and use your hydrophone in the eld as well as
its maintenance and care. It also links directly to many other relevant documents on our website
(these will either open or download based on your browser settings). All referenced documents
are also provided on the thumb drive provided with your hydrophone.
The icListen is an ethernet based device. This allows the hydrophone to connect to networks,
stream data, and be easily integrated into multi-device platforms. The icListen can be used
as a fully autonomous device providing 256GB of storage and real-time streaming of both
waveform and spectral data. The hydrophone will operate for up to 8 hours using the internal
rechargeable battery. Optional battery packs can also be used to extend deployment time.
The amount of recording time available is dependent upon the sample rate as shown below.
SampleRate
(kS/sec)
24 Bit Data
GB per day Days with 256 GB
16 4.5 56
32 8.6 29
64 16.9 15
128 33.5 7.5
256 66.7 3.8
512 133.1 1.9
Note that the storage time can be increased signicantly by enabling Duty Cycle Logging to
record data periodically, or by storing only processed FFT data. Waveform data is logged in the
standard “.wav” format, making it accessible from a wide range of software programs.
Spectral analysis of data can be performed by the icListen and can be averaged for up
to one minute to reduce data volume. The data is provided in .txt format, suitable for
spreadsheet viewing and further analysis. Full details are available in the icListen Log File
Formats document.

icListen User Guide
2v2021.1
Ocean Sonics provides a Microsoft Windows application, Lucy, which can be used to congure
the icListen (it performs all the functions of the web interface described in this User Guide) and
provides additional sound recording and data analysis capabilities. Lucy can stream real-time
audio and spectral data, provide real-time sound analysis and record icListen data to a computer.
Replay functions are available to review recorded spectral FFT les and waveform data.
Each icListen comes with a 30-day trial of the Lucy application. For full details on how to
install and use Lucy please see the Lucy Software User Guide.