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DPRO3 FM Audio Processor

© 2016 ITEL Elettronica e Telecominicazioni Snc

5

Streaming audio module

The module adds audio streaming decoding capabilities for receiving streaming MP3 / AAC +
shoutcast servers or by using RTP and TCP / IP connectivity. The module also allows playback of
audio files from an USB key.

The audio output is transferred in digital format to audio processor / stereo encoder, thus achieving
the highest audio quality.

An helpful guide for all settings appears on the side of the configuration page.

5.1

Quick setup

The default IP address is

192.168.1.100

.

If the IP is unk nown, connect the the processor directly to a PC network card, then use the supplied
utility "module_finder.exe" to recover its IP address.

Connect the apparatus to your LAN and turn it on. Open a web browser on a PC from which the
apparatus can be reached and type on the web browser's address bar: http://192.168.1.100.
The audio module internal webserver should then load the default page.
Go to the "CONFIG" menu and set one or more URLs from which to receive the audio stream.
Save current configuration by pressing the "SAVE & REBOOT" button, wait for the restart of the
module.

Configure the network settings of the module: SETUP -> NETWORK
Save by pressing the "SAVE & REBOOT" button, wait for the restart of the module.

On the audio processor, now select the audio input

and the streaming audio received by

the module should be put on-air.

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Summary of Contents for DPRO3

Page 1: ...User s manual DPRO3 FM 2016 ITEL Elettronica e Telecominicazioni Snc Author Version Copyright 1 2 0 20 09 2016 A Tomassini ...

Page 2: ...and equalization 13 Bass parametric eq 13 Bass clipper limiter 14 Stereo expander 15 2 RDS Coder 15 RDS level and flags 15 PI PTY 15 PS and Radiotext monitor 16 PS Editor 16 RT Editor 17 AF list Editor 18 3 Audio input setup 18 Audio levels monitor and input level setting 18 Audio source setup 19 Audio processor preset selection 19 Audio fallback setup audio backup 20 4 Audio output setup 20 Audio...

Page 3: ... 33 RDS Flags window 35 PS window 36 Radiotext window 37 AF Lists window 38 Editing 39 A Method 39 B Method 41 Loading and saving RDS coder configuration 42 4 Passcode setup Section 4 RD Link 44 44 1 Radiotext Plus 46 2 Monitor 48 3 Configuration 48 Setup 48 Program ID 48 Radiotext Plus and dynamic PSN 49 TA Clock time 50 Communication interface and additional settings 51 Raw Text Importer 52 Word...

Page 4: ...Section 1 Description ...

Page 5: ...to new firmware 3 0 features 3 1 0 25 01 2016 updated to new firmware 3 1 features 3 2 0 14 09 2016 updated to new firmware 3 2 features 1 2 Warnings Before attempting any operation please follow the safety instructions contained in the following paragraph The producer declines any liability for damage to people or things due to non compliance even if partial of the following indications Ensure th...

Page 6: ...on and parameter editing is done through the rotary knob 1 4 Rear panel Connectors on rear panel DIG OUT XLR M AES EBU output DIG IN XLR F AES EBU input LEFT IN XLR F left analog input RIGHT IN XLR F right analog input 19K OUT BNC F 19KHz output for external RDS encoder synchronization 1Vpp trapezoidal wave MPX OUT BNC F composite MPX output 6 6dBm SCA IN BNC F external SCA RDS input will be mixed...

Page 7: ... submenu Once entered in the desired sub menu if there are adjustable parameters you can proceed to editing Pressing the knob an asterisk will appear next to the first editable element This will not happen if on the current window there are no editable parameters Turn the knob to position the cursor on the other editable elements of the current window If you want now to change the analog input sen...

Page 8: ...cating that items navigation mode is now active and other items can be selected and edited as described before If editing is however terminated press the knob again and the cursor will disappear and you can rotate the knob to navigate to other windows Inside any submenu pressing the knob for more than 3 seconds will cause a jump to the main menu When pressing the knob for 1 seconds will appear the...

Page 9: ...Section 2 Front panel display ...

Page 10: ...audio processing chain The automatic gain control performs a pre leveling of the signal applied to the following compressors limiters keeping their working point almost constant At the right side of the bar which indicates the level of pre amplification applied to the input signal is placed the AGC status indicator if AGC is displayed the input level is above the gate threshold and the AGC and com...

Page 11: ...ill become the audio processing preset for the selected audio source or the general preset used for all sources depending on whether or not the function Source Dep Presets was enabled A modified but not saved preset will be marked by the MOD prefix This preset will be overwritten if a new preset is loaded and then edited Mode F00 BYPASS has the input level as the only editable parameter and this i...

Page 12: ...or limiter driving level thus determining the compression level A high level of compression will produce a steady and dense sound while a lower level will result in a more natural and dynamic sound Adjust the drive control to have a compression of approximately 15 dB which is not critical as it will accomodate for most musical genres Input HPF ON OFF enables disables the 30Hz high pass filter for ...

Page 13: ...lly independent and this will cause also a mild auto equalization Setting this value to 100 it will force the bass compressor to have a gain never greater than the middle highs band giving a sound very close to the original Brilliance high band 6KHz shelf equalizer Presence 2KHz boost cut filter 2 1 8 Bass parametric eq BassEqFreq parametric equalizer center frequency BassEqGain gain boost of para...

Page 14: ...presence of low frequencies Bass clip Thr bass clipper threshold Bass clip softness bass clipper curve selection Bass clipper will have a curve progressively softer with increasing value A softer curve reduces the distortion introduced by the clipping in contrast setting to zero corresponding to the hardest curve will produce a bass rich in harmonics 2 1 10 Stereo expander In this window is possib...

Page 15: ...level TP ON OFF sets the TP flag status TA ON OFF sets the TA flag status RT ON OFF radiotext enable MS MUS SPC sets the MUSIC SPEECH flag status COMPR ON OFF sets COMPRESSED flag status ARTIFICIAL HEAD ON OFF sets ARTIFICIAL HEAD flag status The mono stereo flag is switched automatically depending on the MPX modulation type selected 2 2 2 PI PTY PI PI code setting PTY Program Type settings Change...

Page 16: ...secs display time in seconds of the currently selected string A duration of zero will disable the display of the string SAVE Save the modified item DEL delete the selected item User must save changes before selecting a new string or before exiting the window otherwise they will be lost 2 2 5 RT Editor In this window you can enter and edit RT strings that will be displayed by the receiver each of w...

Page 17: ...the selected list Freq selection of the frequency number in the list from 1 to 25 to be edited Freq INSERT Insert a new frequency in the Freq position The other frequencies in the list will be shifted accordingly Freq DELETE the current frequency will be deleted List SAVE saves the changes List CLEAR deletes all frequencies in the current list Notes The list once modified will be used only after i...

Page 18: ... input level of the selected channel can be adjusted but the channel will not be put on air To change the on air input channel the following window must be used 2 3 2 Audio source setup Audio input Analog analog input Digital AES EBU input SDI or NetAudio streaming audio input The initial adjustment of the input level should be made so that the maximum analog input level is equal to or only slight...

Page 19: ... audio fallback on backup source OnAir audio source actually on air I1 I2 I3 Channel list The channel are listed by order of priority with maximum priority assigned to channel 1 When an high priority channel will become unavailable it will be replaced by a lower priority one until its recovery AlmTime Alarm timeout Back Time Back timeout It is the time for which the main audio source must be above...

Page 20: ...st clip flt output signal is taken after clipper and lowpass filter Pre filter output signal is taken prior the lowpass filter but after the clipper Pre clipper output signal is taken before the clipper 2 5 MPX output setup 2 5 1 MPX modulation and pilot subcarrier setup Modulation stereo mono l r mono L mono R Stereo stereo modulation Mono L R monoaural modulation from L R channels sum Mono L Mon...

Page 21: ...to the level of injection of the two subcarriers otherwise overmodulation will occur For example if a RDS subcarrier of 2KHz and a pilot tone of 6KHz are desired the audio signal level can not be greater than 100 1 PilotCarrierDeviation RDSCarrierDeviation 75 which for the example described above will correspond to 100 1 6 2 75 89 3 Composite level MPX output level Test tone when activated will pu...

Page 22: ...rs long label which will be shown in the main menu screen useful for identification when multiple devices are installed 2 6 2 PassCode Setup User Password in this section the user can enter a numeric password that will be required for accessing the device Setting 0000 default value will disable the password prompt Autologout mins Automatic lock timeout If no action is done on the front panel knob ...

Page 23: ... Options In this window the user must enter the code to enable the optional features Once entered the code for the desired option go to the ENTER button and when it will flash push the front panel encoder The device will verify the code and if found correct will activate the requested option 2 6 6 Login window To protect the device from unauthorized operation a security code can be enabled by acce...

Page 24: ...n attempt an unlock code will be displayed Call customer service and tell this code in order to get back your pass code 2 7 Headphones Level The headphone level can be adjusted using the front panel knob Pressing the knob for more than 1 second will show the adjustment level menù After 3 seconds the level menù will close automatically ...

Page 25: ...Section 3 Programmming software ...

Page 26: ...ial port 9600 baud 8N1 ethernet port TCP IP if optional streaming module is installed ethernet port UDP if optional network module is installed 3 1 Main window In the main window the type of connection can be selected via COM port or through Ethernet port using TCP IP needs streaming module or UDP needs ethernet module Once the communication mode is set up and the processor connected press Connect...

Page 27: ... air the presets list and the audio processing parameters All presets are listed and with a double click is possible to recall a preset and put it on air Factory presets are displayed in blue background user definable presets in green and in orange a modified preset not yet saved The modified preset in orange will be usable until a new preset is loaded and then modified ...

Page 28: ...ence Bass Clip Threshold Bass Clip Softness Bass EQ Bass EQ Q Bass EQ Freq Expander Level Stereo Expander Enabled Read read the parameters setup from the processor Update send the modified audio processing parameters to the processor when a factory or a user preset is modified a temporary preset will be created The Save Onair button will be enabled to save the preset once changes are terminated Th...

Page 29: ...hanging audio output parameters setting up the audio fallback and the source dependent presets For a detailed description of the following parameters please refer to audio input setup audio output setup e source dependent presets Audio Input Analog InputLevel Digital InputLevel Network InputLevel Bypass InputLevel Audio OutputLevel Audio Output Mode Audio Output Deemphasis Audio Backup Enalbled So...

Page 30: ...ated to the optional network module only If the streaming module was installed network configuration will be done through the web server of the module For a detailed description of the following pararmeters please refer to MPX output setup and System setup RDS Enabled RDS level Pilot Level Pilot Phase Modulation Preemphasis MPX Output Level MPX Audio Level NET IP NET MASK NET GATEWAY NET PORT Read...

Page 31: ... 2 4 Loading and saving a preset The remote control software allows to load and save the audio processing presets through the File Processor menu Save Usr Presets to Disk the on air preset will be saved to disk Load Usr Presets to Onair the preset loaded will be put on air ...

Page 32: ...mote control software allows to load and save the system configuration through the System menu and this includes all parameters listed under System and Audio Input Output tabs Save System config to Disk the system configurationi will be saved to disk Load System config from Disk the system config preset loaded in ...

Page 33: ...ed by the listener PI Program Identification Identification code of the station The code consists of 4 digits the first digit indicates the country of origin the second represents the area of coverage and the last two identify the station into its coverage area First digit the country of origin of the program You may write it directly into the PI Code editbox or select it using the Country dropdow...

Page 34: ...affic Announce on air This flag should be set when traffic related news are being broadcasted For this reason the TA flag can be switched by the external control port MUSIC This flag indicates if the station main format is music or speech Some receivers use this information to apply a different tone equalization or volume according to whether music or speech is being broadcasted It is possible to ...

Page 35: ...isplay duration time in seconds A duration time of 0 disables the corresponding string READ read all PS strings from the encoder Warning all strings on the grid will be overwritten WRITE transfer all strings on grid to the coder Warning the strings on the coder will be overwritten WRITE MODIFIED transfer only modified entries CLEAR ALL clear all strings which are on the grid CLEAR SELECTED clear a...

Page 36: ...y duration time in minutes A duration time of 0 disables the corresponding string READ read all radiotext strings from the encoder Warning all strings on the grid will be overwritten WRITE transfer all strings on grid to the coder Warning the strings on the coder will be overwritten WRITE MODIFIED transfer only modified Radiotext entries CLEAR ALL clear all strings which are on the grid CLEAR SELE...

Page 37: ...in the way the frequencies are disposed into the list Notes It is not possible to compile different lists using the A and B simultaneously A method should be used only when the network has a maximum of 25 frequencies and does not differentiate regional programming B method is used when the alternative frequencies are more than 25 or when within the same network there is a program differentiation s...

Page 38: ... list Af list 1 cell AF1 Right clicking on the list a popup menu will appear allowing to Clear list the current list will be cleared Sort frequencies the frequencies inserted into the current list will be sorted in ascending order Insert insert a new frequency at the selected cell position Remove remove the frequency at the selected cell position ...

Page 39: ...ly addressed by transmitting the tuning frequency paired with one alternative frequency within one block Each list starts with the tuning frequency for which the list is valid All remaining pairs up to 12 give the tuning frequency together with a valid AF Usually the tuning AF pair has to be entered in ascending order if the AF is not a regional variant of the tuning frequency on the contrary the ...

Page 40: ...tronica e Telecominicazioni Snc I The main frequency 90 0MHz is put in the first AF cell AF1 and all alternatives are following from AF2 to AF6 Right click on the list and select the Build B List command the list will be compiled using B method ...

Page 41: ...nfiguration The remote control software allows to save and reload a complete RDS coder configuration through the File RDS menu Load Configuration Save Configuration The rds file will contain the whole RDS encoder configuration it can be stored as a backup or used to transfer the configuration to other devices ...

Page 42: ...an be changed through the following procedure Put the current Passcode into the PassCode edit box 0000 by default Put a new code into the New Code and the same again into the New Code Confirm editor Go to Menu PassCode Change Passcode The user will be prompted for passcode change confirmation then the passcode will be changed Store Password to disk store the current passcode to not enter it each t...

Page 43: ...Section 4 RD Link ...

Page 44: ...radio automation systems but other interfaces may be included on customer request in order to extend the compatibility to other systems 4 1 Radiotext Plus Radio text plus is a complementary service that united with classic radiotext enables tagging of specific radiotext parts so that they can be isolated and used by some specialized receivers You can then for example have the complete station play...

Page 45: ...s the song title In this case the song title and artist s name are used to compile the playlist aired by the station we are listening In the case below the radiotext string is You are listening to Shakira with La tortura Feat Alejandro Sanz and both normal radiotext and tagged radiotext are shown first string is the artist name the second is the song title last string is the normal radiotext ...

Page 46: ...iotext strings are shown in the same way as they are being transmitted It is shown also the status of TA CT RT flags and scheduler TA Orange TA flag active during traffic news on air Gray TA flag disabled CT Green transmission of Clock Time block 4A for remote clock visualization and synchronization is enabled Gray CT is disabled ...

Page 47: ...y shown is tagged using radiotext plus Gray Radiotext Plus is disabled SCHED Green scheduler is enabled Radiotext Plus is enabled Red scheduler is enabled but actually Radiotext Plus is disabled by the scheduler Gray scheduler disabled Radiotext plus tagging is controlled by the flag Enable RT ...

Page 48: ...y radio automation system will be passed to radiotext only if this flag is enabled You can also add a prefix and a separator to the string which will be put on air Please note that the maximum length of radiotext string in block 2A is 64 characters If the total length of the string including prefix and separator will be longer than this limit it will be truncated automatically Send RT titles to PS...

Page 49: ...at the end of the internally stored strings Eg internally stored strings are MY RADIO THE BEST IN TOWN loop Without Sync Start MY RADIO BEATLES HELP THE BEST IN TOWN MY RADIO THE BEST IN TOWN loop dynamic PS strings are bolded With Sync Start MY RADIO THE BEST IN TOWN BEATLES HELP MY RADIO THE BEST IN TOWN loop dynamic PS strings are bolded Restart from first PSN item after DyPs if enabled after a...

Page 50: ...r the same Radiotext Plus string visualization If this period is exceeded the coder will start to send the internally stored RT strings returning to dynamic RT once a new string is received Show log show program activity log Center PSN auto center the strings displayed on PSN if they are shorter than 8 characters Use scheduler for dynamic contents enable scheduler for dynamic radiotext plus and PS...

Page 51: ...parators editor In the above example the input string SHAKIRA La tortura is divided using the separator This will produce two output lines line 0 La tortura line 1 SHAKIRA Then using the controls Artist item and Title item set which line must be used as title and which one as the artist name using identifiers eventually included in the raw file if the raw file was already marked with labels such a...

Page 52: ...ds the visualization on dynamic radiotext and PS of all strings which match any word in list Words are added writing them in the editing line then must be set the recognition method Whole Word or Any Occurrence Pressing the Add button the new word will be added to the list Whole word the word to be recognized must be correspond exactly to the input string Example filter word apple apple is recogni...

Page 53: ... day except on Sundays where it will be active for the entire day So an event must be created scheduled for 8 00 am set into Start Time box having Enabled status checked Pressing the Add the button the event will be added to the events list We have that the dynamic content will be disabled from 00 00 to 8 00 then for the event we created from 8 00 onwards it will be enabled Now the dynamic content...

Page 54: ...abling event at 23 00 In the following picture is represented the complete programming Summarizing firstly the dynamic content enabling was added at 8 00hr then the disabling event at 12 00hr the re enabling at 18 00hr and the disabling at 23 00hr Since this scheduling will be the same for almost the whole week it can be simply copied to the other days pressing the Same for all days button ...

Page 55: ... all days Done this you will then modify the sunday scheduling only where the dynamic content will be enabled for the whole day Select the week day on the top of the window Sun Press the Clear button to delete all scheduler entries for the current day Once all entries have been deleted just add an event starting at 00 00 with Enabled checkbox checked to enable the dynamic content ...

Page 56: ...ress OK button to save and exit from the current window Follows a short description of the other controls on the window Remove removes the currently selected entry Update updates the currently selected entry with new time and or status informations Clear all schedules deletes all entries over all days ...

Page 57: ...Section 5 Streaming audio module ...

Page 58: ... processor directly to a PC network card then use the supplied utility module_finder exe to recover its IP address Connect the apparatus to your LAN and turn it on Open a web browser on a PC from which the apparatus can be reached and type on the web browser s address bar http 192 168 1 100 The audio module internal webserver should then load the default page Go to the CONFIG menu and set one or m...

Page 59: ... setting can also be omitted since the processor will provide for automatic leveling The preset for the network input can be chosen into the next window after netaudio input has been selected into the current If you want to use more than a single audio source for using the integrated automatic audio fallback proceed to its selection and its associated audio processing preset Finally turn the audio...

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