Telos ProSTREAM Bedienungsanleitung
TELOS ProSTREAM
Network Audio Processor and Stream Encoder
USER’S MANUAL
Version 1.0
September, 2011
Telos ProSTREAM Manual
© 2011 TLS Corporation. Published by Telos Systems/TLS Corporation. All rights reserved.
Trademarks
Telos Systems, the Telos logo and ProSTREAM are trademarks of TLS Corporation. All other
trademarks are the property of their respective holders.
Notice
All versions, claims of compatibility, trademarks, etc. of hardware and software products not made by Telos
mentioned in this manual or accompanying material are informational only. Telos Systems makes no endorsement
of any particular product for any purpose, nor claims any responsibility for operation or accuracy. We reserve the
right to make improvements or changes in the products described in this manual which may affect the product
specifications, or to revise the manual without notice.
Warranty
This product is covered by a two year limited warranty, the full text of which is included in this manual.
Updates
The operation of the ProSTREAM is determined largely by software. We routinely release new versions to add
features and fix bugs. Check the Telos web site for the latest. We encourage you to sign-up for the email notification
service offered on the site.
Feedback
We welcome feedback on any aspect of the Telos ProSTREAM, or this manual. In the past, many good ideas from
users have made their way into software revisions or new products. Please contact us with your comments.
Service
You must contact Telos before returning any equipment for factory service. We will need the serial number, located
on the back of the unit. Telos Systems will issue a Return Authorization number which must be written on the
exterior of your shipping container. Please do not include cables or accessories unless specifically requested by the
technical support engineer at Telos. Be sure to adequately insure your shipment for its replacement value. Packages
without proper authorization may be refused. US customers please contact Telos technical support at +1-216-622-
0247. All other customers should contact your local representative to make arrangements for service.
We support you...
By Phone / Fax:
You may reach our 24/7 Support Team anytime around the clock by calling +1-216-622-0247.
For billing questions or other non-emergency technical questions, call +1-216-241-7225 between 9:30 AM to 6:00
PM USA Eastern Time, Monday through Friday.
Our fax is +1-216-241-4103.
By E-Mail:
Technical support is available at Support@Telos-Systems.com.
All other inquiries at Inquiry@Telos-Systems.com.
Via World Wide Web:
The Telos Web site has a variety of information which may be useful for product selection and support.
The URL is www.Telos-Systems.com
10 9 8 7 6 5 4 3 2 1
Telos Systems USA
Telos Systems
1241 Superior Avenue E
Cleveland, OH 44114 USA
+1-216-241-7225 (phone)
+1-216-241-4103 (fax)
+1-216-622-0247 (24/7 Technical Support)
Support@Telos-Systems.com
Inquiry@Telos-Systems.com
Notices and Cautions
CAUTION:
THE INSTALLATION AND SERVICE INSTRUCTIONS IN THIS MANUAL ARE FOR USE BY QUALIFIED
PERSONNEL ONLY. TO AVOID ELECTRIC SHOCK, DO NOT PERFORM ANY SERVICING OTHER THAN
THAT CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO. REFER
ALL SERVICING TO QUALIFIED PERSONNEL.
WARNING:
TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOIS-
TURE.
USA CLASS A COMPUTING DEVICE INFORMATION TO USER. WARNING:
This equipment generates, uses, and can radiate radio-frequency energy. If it is not installed and used as directed by
this manual, it may cause interference to radio communication. This equipment complies with the limits for a Class
A computing device, as specified by FCC Rules, Part 15, Subpart J, which are designed to provide reasonable protec-
tion against such interference when this type of equipment is operated in a commercial environment. Operation
of this equipment in a residential area is likely to cause interference. If it does, the user will be required to eliminate
the interference at the user’s expense. NOTE: Objectionable interference to TV or radio reception can occur if
other devices are connected to this device without the use of shielded interconnect cables. FCC rules require the use
of shielded cables.
CANADA WARNING:
“This digital apparatus does not exceed the Class A limits for radio noise emissions set out in the Radio Interference
Regulations of the Canadian Department of Communications.”“Le present appareil numerique n’emet pas de
bruits radioelectriques depassant les limites applicables aux appareils numeriques (de Class A) prescrites dans le
reglement sur le brouillage radioelectrique edicte par le ministere des Communications du Canada.”
This symbol, wherever it appears, alerts you to the presence
of uninsulated, dangerous voltage inside the enclosure –
voltage which may be sufficient to constitute a risk of shock.
This symbol, wherever it appears, alerts you to important
operating and maintenance instructions. Read the manual.
We support you... . . . . . . . . . . . . . . . . . . . . . . . . . . . . II
A letter from our CEO . . . . . . . . . . . . . . . . . . . . . . . . . . VII
1 Introducing ProSTREAM 1
FYI: MPEG License & Music Copyright . . . . . . . . . . . . . . . . . . . 1
Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Streaming Server software . . . . . . . . . . . . . . . . . . . . . . . . 2
ProSTREAM Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Listening to the encoded ProSTREAM web stream . . . . . . . . . . . . . . 3
2 Controls and Connections 5
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Editing Text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 ProSTREAM Controls 7
Audio Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Network Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
IN/OUT status bar graphs: . . . . . . . . . . . . . . . . . . . . . . . . 10
Automatic Gain Control [AGC]: . . . . . . . . . . . . . . . . . . . . . . 11
Limit: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Omnia Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Getting the Sound You Want . . . . . . . . . . . . . . . . . . . . . . . 13
Adding More Detail: When Loudness Isn’t the Last Word . . . . . . . . . . . 15
Equalization Changes . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Thunder Bass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Reducing Codec Artifacts . . . . . . . . . . . . . . . . . . . . . . . . . 17
Codec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table of Contents
TELOS PROSTREAM MANUAL | V
Compression Codec . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Bitrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Metadata . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Streams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4 Streaming Servers 23
Streaming Servers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Stream Server Service Providers . . . . . . . . . . . . . . . . . . . . . . 24
A1 Warranty and Application Cautions 25
A2 ProSTREAM Audio Specications 27
A3 Safety Notication 29
A Letter from our CEO...
“What if?” A singularly great question, because it opens the
door to so many other questions and ideas. Those who ask
it are sometimes called dreamers, as if that were somehow
bad, but history has often proven dreamers to be the avatars
of new and exciting things.
“What if?” was the query asked by Steve Church that led
to the start of Telos Systems. In 1984, Steve – then a young
broadcast engineer and part-time talk show host – won-
dered whether emerging Digital Signal Processing (DSP)
technology might be useful to clean up the terrible caller
audio then the norm at radio stations. The result of asking it
was the Telos 10, the world’s first digital telephone hybrid,
a product that changed the face of radio forever.
Looking back at Telos history, “What if?” is found at the
root of many more technologies broadcasters have since
made ubiquitous. “MP3 bit rates are perfectly matched
to the bandwidth of ISDN; what if we combined them?”
“What if we built a box that let radio stations stream audio
on the Internet?” “What if we could use Ethernet to treat
audio as data and move it around the radio station in real
time?” (By the way, if you recognized the answers to those
questions as the Zephyr ISDN codec, AudioActive MPEG
encoder and Livewire IP-Audio standard, give yourself a
cookie.)
Today, as technology roars ahead, we’re constantly seeking
new ways to apply it to the problems of everyday broadcast-
ing. Voice over IP (VoIP) is particularly compelling for
its ability to packetize high-quality phone calls and direct
them anywhere in the broadcast plant using ubiquitous,
standard Ethernet as a backbone. A new digital tech called
AEC (Advanced Echo Cancellation) is helping to literally
eliminate the age-old problem of feedback in open-speaker
environments. And the prize of using the public Internet for
remote connections as reliable as those of switched circuits
is within broadcasters’ grasp, thanks to ever more sophisti-
cated coding algorithms.
Pioneering ideas aren’t limited just to technology, though.
We believe that investing in people pays off big, so we’ve
assembled the largest R&D team in the industry, a talented
staff of engineers, scientists and broadcast professionals.
We’re also the first and only broadcast equipment maker
with a 24/7 support team ready to offer assistance any
time of the day or night. As they say, radio never sleeps – so
neither do we.
As Telos navigates its third decade in broadcasting’s
choppy waters, the culture of innovation and creativity that
propelled Steve in the early days still guides us today. We’re
still in love with radio, still turned on by new technology,
still driven to ask “What if?” If you’re reading this, you
are too — for which we thank you, from the bottom of our
hearts.
Michael “Catfish” Dosch
CEO
A LETTER FROM OUR CEO | VII
| 1
1
Introducing ProSTREAM
The Telos Systems ProSTREAM is a hardware-based audio processor and web stream encoder device in a
compact 1U rack-mount chassis. The ProSTREAM will process and encode audio sourced from either rear-
mounted analog audio inputs, via Livewire IP-audio technology, or via optional AES/EBU digital inputs.
ProSTREAM uses Omnia Audio’s proven audio processing algorithms to balance the input audio to fit your
program’s sound. ProSTREAM encodes the processed audio and muxes the companion real-time program
meta data into a compressed web stream. ProSTREAM then connects to a streaming relay server instance or
streaming service provider to deliver a rock solid packet stream for Internet clients.
FYI: MPEG License & Music Copyright
Musical compositions and sound recordings are creative works that are protected by the copyright laws
of the United States (title 17, U.S. Code) and other countries. Under U.S. law, the owner of a copyright
has the exclusive right(and may authorize others)to reproduce the work, use parts of the work in a new
creation, distribute the work in whole or in part, and to publicly display or perform the work (including on
web pages and through webcasting). With few exceptions, it is illegal to reproduce, distribute or broadcast
a sound recording without the permission of the copyright owner. It is your responsibility to comply with
the copyright laws of the United States and other countries in which you broadcast and to pay all applicable
royalties to the copyright owners when you become a webcaster.
There have been recent amendments to the copyright law regarding webcasting of sound recordings. These
new provisions allow webcasting under the terms of a statutory license, as a way to help webcasters get
permission without having to go to each sound recording’s owner. The statutory license, however, has
strict requirements that you must follow. Some of these requirements include the payment of license fees,
limitations on the number of songs from the same album or artist that may be played in a three hour period
(called the sound recording performance complement); a prohibition on publishing advance playlists; and
a requirement to identify the song, artist and album on the website. There are other requirements as well.
The Recording Industry Association of America provides quite a bit of information on copyright law as it
applies to webcasting, and both ASCAP and BMI have created license agreements that they are willing to
grant to webcasters that they believe conform to the provisions of the new copyright rules for webcasting.
For additional information on the statutory license and other aspects of webcasting,
please visit the following sites:
♦The U.S. Copyright Office
http://www.copyright.gov
♦The Recording Industry Association of America
http://www.riaa.com/issues/music/webcasting
♦ASCAP
http://www.ascap.com/weblicense/webintro.html
♦BMI
http://www.bmi.com/iama/webcaster/index.asp Streaming Server software
2 | Section 1
Quick Start
In order to quick start a ProSTREAM web stream, a streaming relay server instance can be used to test
ProSTREAM functionality. This example uses SHOUTcast DNAS 1.9.8 (Current Stable Version) freely
available for major computational platforms from http://www.SHOUTcast.com/broadcast-tools.
Streaming Server software
Once SHOUTcast DNAS is installed, make note of the server machine’s IP address and run SHOUTcast
DNAS with the following minimal sc_serv.conf file:
; SHOUTcast 1.9.8 conguration le
; not production ready
MaxUser=32
Password=Telos
PortBase=8800
SrcIP=ANY
DestIP=ANY
Streaming server operation can be verified by opening a web browser and navigating to the SHOUTcast
server root URL. This URL is the IP of the computer running SHOUTcast DNAS followed by a colon [:] and
the port number configured in the sc_serv.conf file. I.E. http://192.168.0.9:8800 When functioning, the
SHOUTcast DNAS Status webpage will appear displaying Server Status: Server is currently down.
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