Telos iPort manuale d’uso

TELOS iPort Livewire-MPEG Gatew ay USER’S MANUAL Manual V ersion 1.1 for software version 1.0 and lat er 26 January, 2009[...]

T elos iP ort Manual © 2008 TLS Cor por ation. Published by T elos Sy stems/TLS Cor poration. All rights reser ved. T rademarks T elos Syst ems , the T elos logo , iPort , Livewire , Zephyr , Z ephyrExpress , Zephyr Xstr eam , Nx12 , T WOx12 , Series 2101 , Desktop Director , and St at us Symbols ar e trademarks of TLS Cor poration. All other trad[...]

T elos Sy stems USA 2101 Super ior A venue Cleveland, OH 44114 USA T elos Europe Johannisstraße 6 85354 F reising Germany Notices and Cautions CA U T ION: THE I NST AL LA T ION AND SE R VICE I NSTRUCTIONS IN THIS MANU AL ARE FOR USE BY QU ALIFIED PE RSONNEL ONL Y . TO A V OI D E L ECTRIC SHOCK, DO NOT PER FORM ANY SE R VICI NG OTHER THAN T HA T CO[...]

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W e suppor t you... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i 1 Introduction 1 W elcome to the iPort . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Fea tures & Benets . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Connection[...]

TE LOS IP O RT MA N UAL | V SHOUT cast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Stream and T rack Names . . . . . . . . . . . . . . . . . . . . . . . . . 30 Using a PC Play er to Listen . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Hardwar e Players . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 MPEG[...]

| 1 1 Introduction W elcome to the iP or t e T elos iP ort is designed to help you achieve one of two objectives: Connect two Livewire-equipped facilities over a wide-ar ea network, suc h that they ♦ appear to be local to each other . As many as 8 bi-directio nal channels are possible. In the simplest case, a single Livewire 8x8 interface Node[...]

2 | Section 1 loss is routine such as on the public Internet. There are congurable bu ers to accommodate jitt er , but longer buer lengths add to dela y . When you need to use non-QoS- controlled links, the T elos Z/IP family products are a better choice because they hav e adaptive mechanisms to deal with netw ork problems. F eatures &[...]

INTRODUC TION | 3 e jack labeled 100/1000 is for the compressed streams, which is nor mally connected to a W ide Area Networ k link. It automatically adapts its rate to the port at the other end of the connection. F or both jacks, the iP or t ’ s Ethernet mode is set per manently to AUTO , so the other end must be, as well. (Pr oblems c an res[...]

4 | Section 1 factor y defaults. F irmware setup . Restart. Diagnost ics ♦ - Vie w and capture system diagnostics info. e first step is going to be to configure the networ k parameters, so click on the Network link to open that page. Host Name is is the Linux host name that is used for device identific ation, suc h as, for example, when [...]

INTRODUC TION | 5 How ever , if you do w ant only one connection to the iPort, then it’ s OK to enter the same subnet for both elds. In this case, both the Live wire and codec streams will be on whichev er single physical port you con- nect. The other should remain unconnected. Changing P asscodes is may be done on the System page. Y ou can[...]

6 | Section 1 T o install new fir mware , the first step is to downloa d it to your PC. Y ou might receive this via email f rom our support department, or you might find it o n our website. Af ter it is on your PC, browse to locate it, then click the Upload button to install it into the iP or t. It will be stored the in bank checked in the ‘ r[...]

| 7 2 Livewir e -W AN Link Livewire is a professional-grade IP Audio system, used over controlled local area networks. As a modern replacement for older analog or TDM digital sy stems, it offers very low delay and high audio fidelity . ere ar e a wide range of products made for broadcast studio facilities that take advantage of Livewire: inter[...]

8 | Section 2 equipment, y ou’ d have a rack full of codec boxes, expensive router interface cards, and a plethora of cables. If you don ’t alr eady have a Liv ewire installation, no problem. Y ou can use an audio inter face Node, or two, and still benefit f rom the iP ort ’ s simplicity and low cost. Getting Star ted A simple installation w[...]

LIVEWIREW AN LINK | 9 Network Click on the Network link, and you will see this page: Host Name Enter a convenient name , if y ou want to change f rom the Zephyr default. (A dvanced note: is is the Linux host name, used f or network identification.) Livewire por t If you have not alr eady done so via the f ront panel LCD interface, enter the [...]

10 | Section 2 C odec congur ation Global Options Confirm that the factor y default is set for 8 encoder / decoder channels. (e 16-channel encode-only option is used for streaming applications.) Codec and Channel S ettings Usually , the first step will be to c lick the Options button for the channel you are configur- ing to set the details[...]

LIVEWIREW AN LINK | 11 Decoder e Buffer ing drop-down bo x lets you choose how m uch buffer is applied to the received streams. A lower value gives lower delay , but depends upon the networ k to have low jit- ter . ere ar e a range of values, so that y ou can experiment to find the optimum for your network conditions. e usual procedu[...]

12 | Section 2 selected on the Diagnostics page. ese are mostly intended for our engineers. Should you have a problem that might be diagnosable via these logs, our suppor t people will ask you to download and email us the files. F A Qs Do all the channels need to go to a single unit at the other end? No . Each of the iP or t ’ s channels are [...]

LIVEWIREW AN LINK | 13 AA C-LD has the low est delay of the codecs, so is the c hoice when inter-activity is ♦ important, such as for intercoms. It has about 30% less efficiency than AA C, which means that for equal quality , you would need to use 30% higher bitrate. Its packet- loss concealment is good, but not as good as AA C. MP3 (MPEG laye[...]

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STREAMING | 15 3 Str eaming W hen used with an appropriate ser ver , the iP ort can be used as a simple, reliable encoder for Internet or internal audio distr ibution. Bec ause the iP ort generates standards-based MPEG streams, a wide variety of PC-hosted and hardware play ers can be used for listen- ing. e iP ort is onl y an encoder , which can[...]

16 | Section 3 there must be a har dware N ode somewhere on the network to pr ovide the timing c lock.) An installation which already has Livewire equip ment would not need a Node dedicated to the iP ort - you would just select the channels you want to stream directly f rom the Livewire network. e original idea for the SHO U T cast ser ver is th[...]

STREAMING | 17 Select ‘ TCP ’ as the protocol (used for the iP ort to ser ver link) 5. Click the box 6. Enable SHOU T cast and enter a passwor d that will be used by the ser ver to authenticate the stream Install, configure , and star t the ser ver (Steamc ast for our example) Install Steamc ast and its support files the host PC 7. Edit the c[...]

18 | Section 3 Clicking on Options gets us to the page that lets us enter the codec details. F or this first stream, we’ve chosen the MP3 encoder , and a high-qualit y 128kbps bitrate. For communication with streaming servers, the Pr otocol type will be T CP . Click the Enable SHOU T cast protocol box and enter a passw ord. is password will b[...]

STREAMING | 19 web broadcast. S teamcast ’ s backend XML sheets are supported by other ser vices such as L oudCity for royalty requirements and the interface is also utilized by several IRC and PHP projects to inc lude stats in var ying listener loc ations. Installing and Using Steamcast Download the ser ver software f rom www .steamcast.com. W i[...]

20 | Section 3 ; Steamcast Configuration F ile ; ================================ ; is is the default Steamc ast ser ver configuration file, f eel f ree to use ; it as a template for your ser ver’ s configuration. All lines beginning with ; ; or blank are ignor ed by the ser ver’ s configuration parser . ; Ser ver Configuration ; =====[...]

STREAMING | 21 ; also enables steamcast ’ s auto extension feature so that the server will assign the correct ; extension to your mount points based o n the audio format/codec in use. MimeF ile=mime.ty pes ; BanF ile [None|*steamcast.ban]: U se this var iable to specify the location of your ban file. e ; ban file contains information about p[...]

22 | Section 3 ; ClientTimeout [*30]: N umber of seconds a listener/viewer should stay connected while no ; source exists for thier mount. ClientTimeout=30 ; User Configuration ; ================== ; AdminU ser & Admin P ass: is is the credentials that allow full control of the server remotely ; so be ver y careful in determining what to pu[...]

STREAMING | 23 ; UserMaxes co mbined exceed the global UserMax then the U serMax takes presedence. SourceUserMax=5 ; SourceRelay : is particular mount will pull data f rom the location specified below . ; If you publish both servers on yp.shoutcast.com and wish that they cluster at that ; yp ser ver then enter your relay url without http:// or [...]

24 | Section 3 ; publishing outlets. Y ou can use %s anywhere in the title to have the encoder’ s option included ; into the final stream name. ; SourceNameF ormat=%s powered by Steamcast ; SourceIsDefault [*Y es|No]: Setting this to Y es will make this particular ; mount available globally . ere can be only one global mount. is ; is also [...]

STREAMING | 25 ; ser vices. ; SourcePublicRelays=Y es ; SourceRawKey : Set this variable to the key you would like passed in a parameter string to ; access the raw data stream in HT TP form. is is great for things such as F lash. If you use ; the example below then access to the raw data stream (unpr otected by user-agent filters) can ; be obta[...]

26 | Section 3 ; Ser vI P=ANY ; SrcIP [*Any]: SrcIP is the IP that S teamcast will listen f or source connectio ns. F or ; instance setting this option to 127.0.0.1 will limit SHOU T c ast source connection attempts ; to only f rom the the machine steamcast resides on. ANY (case sensitive) will allow ; steamcast to bind to all and any ip interfaces[...]

STREAMING | 27 SourceP ass=telos4 SourceUserMax=5 SourceIsDefault=No SourceMount=/stream5.mp3 SourceUser=telos5 SourceP ass=telos5 SourceUserMax=5 SourceIsDefault=No SourceMount=/stream6.mp3 SourceUser=telos6 SourceP ass=telos6 SourceUserMax=5 SourceIsDefault=No SourceMount=/stream7.mp3 SourceUser=telos7 SourceP ass=telos7 SourceUserMax=5 SourceIsD[...]

28 | Section 3 SourceMount=/stream11.mp3 SourceUser=telos11 SourceP ass=telos11 SourceUserMax=5 SourceIsDefault=No SourceMount=/stream12.mp3 SourceUser=telos12 SourceP ass=telos12 SourceUserMax=5 SourceIsDefault=No SourceMount=/stream13.mp3 SourceUser=telos13 SourceP ass=telos13 SourceUserMax=5 SourceIsDefault=No SourceMount=/stream14.mp3 SourceUse[...]

STREAMING | 29 W eb Inter face T o use the W eb interface on the same PC where Steamc ast is running, open a W eb browser and point it to: http://localhost:9800. e number af ter the colon is the IP port number , which we have set via the Steamcast configuration file to 9800 in our example. Y ou can also use a browser on a r emote machine, by e[...]

30 | Section 3 SHOU T cast Radio DNAS application. UNIX, L I NUX, F reeBSD and MA C OSX: 1. Download the SHOU T cast DNAS application version appropriate to your system by proceeding to this link. 2. Unzip the distribution and un-tar the archive . 3. Use a text editor to co nfigure the sc_ser v .conf file 4. Note that the user y ou r un the ser v[...]

STREAMING | 31 Using a PC Pla yer t o Listen W e wil l use the Windows Media P layer 11 for our first test with the Steamcast ser ver configured as above . Open the play er , r ight clic k, go to the File menu and select Open URL... . is window will appear: Enter the IP and port, then the stream name. Bec ause the player is running on the same[...]

32 | Section 3 MPEG License & Music Cop yright e MPEG encoders in the iP or t are properly licensed for professional, non-public applica- tions such as broadcast remotes, pr ivate distribution systems, and the like. W e ’ve paid the fees as part of the cost of making the iP ort (in fact, it is a significant part of our expense), and the u[...]

STREAMING | 33 on the statutor y license and other aspects of webcasting, please visit the f ollowing sites: e U.S. Copyr ight Office http://www .cop yright.gov e Recording Industr y Associat ion of Americ a http://www .riaa.com/issues/music/w ebcasting. ASCAP http://www .ascap .com/weblicense/webintro .html BMI http://www .bmi.com/iama/w ebc[...]