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Prodys S.L. Tel: +34 91 6896880 

 Fax: +34 91 6943777 

 Email: 

[email protected]

 

 Web: 

www.prodys.com

 

 

       Page 103 

 

 

AUDIO ENCODING ALGORITHMS 

There is a wide variety of audio encoding algorithms implemented in the codecs 
belonging to the Quantum Family. This variety allows a better adaptation to the 

different scenarios where requirements of bandwidth, delay and quality can be 
very different. 
 

Algorithms 

Standard 

PCM 

 

G711 A/μ Law 

 

G722 

 

MPEG 1,2 layer II  ISO/IEC 11172-3 /13818-3

 

MPEG 4 AAC LC 

ISO/IEC 14496-3

 

MPEG 4 AAC LD 

ISO/IEC 14496-3

 

MPEG 4 AAC ELD  ISO/IEC 14496-3

 

MPEG 4 AAC HE 

ISO/IEC 14496-3

 

Enhanced apt-X 

 

OPUS 

 

 

MPEG and OPUS decoding make use of Error Concealment tools. There are some 
scenarios  where  FEC  mechanisms  cannot  be  used  due  to  bandwidth  or  delay 
restrictions.  For  those  cases,  a  method  like  Error  Concealment  to  minimize  the 
impact of packet losses in form of artifacts on the decoded audio is the perfect 

complement. 
 
 

 
 
 

V.1.1

 

BANDWIDTH (KHz) 

Legend: 
x  = Not available in the standard. 

 

# = Not implemented 

Chapter V 

Содержание QLST

Страница 1: ...January 2019 Rev 1 6 Last valid version 2 2 2...

Страница 2: ...8 II 6 Quantum ST 9 II 7 QLST 9 II 8 Quantum 3U and Quantum One 9 II 9 Quantum Family modes of operation 10 Basic Management 12 III 1 Turning on the units 13 III 2 Main menu 13 III 3 Control Web Inte...

Страница 3: ...parameters BRAVE 43 IV 2 1 9 Streaming TX parameters ProntoNet V4 44 IV 2 1 10 Streaming RX parameters 45 IV 2 1 11 Connection Profiles 46 IV 2 1 12 Forwarding 48 IV 2 1 13 Call log 49 IV 2 1 14 Call...

Страница 4: ...rding menu 93 IV 6 2 File play menu 95 IV 6 3 File edit menu 96 IV 6 4 File upload menu 96 IV 6 5 File Monitor 98 IV 6 6 Network share 99 IV 6 7 Audio File Backup 102 IV 6 8 File download 102 AUDIO EN...

Страница 5: ...external modules for better reception and versatile installation options In this manual all the aspects regarding the functions configuration parameters and operation modes of the Quantum family of c...

Страница 6: ...enu or from the ProdysControlPlus application This chapter describes in a comprehensive way how the unit can be configured using either controlling interface Chapter V Technical specifications This ap...

Страница 7: ...antum One In the following sections we will take a look at them II 2 Quantum XL Quantum XL is the only portable audio codec in the market capable of mixing up to 5 mic line mono inputs 1 USB audio int...

Страница 8: ...o stereo audio programs directly to studio using IP networks V Quantum also implements an H 264 video decoder II 4 Quantum W Quantum W is a smaller version of Quantum Portable with 3 microphone line i...

Страница 9: ...ition to this Quantum ST Duo version is also able to establish a second bidirectional stereo audio channel between the studio site and a remote Quantum codec This unit can be controlled from its built...

Страница 10: ...into 2 bit streams Those 2 sub streams will be multiplexed at the receiving end by another Quantum codec Diversity sending the same bit stream through the two Ethernet ports Real Time 3G 4G transmiss...

Страница 11: ...faces Real Time Custom transmission When Ethernet 3G 4G and Wi Fi connections are available a combination of up to 7 different interfaces can be used to stream the audio as well as to upload pre recor...

Страница 12: ...pplication would be the connection of one portable Quantum codec to one rack mount Quantum ST but any combination is possible The following chapter explains how to connect one Quantum XL to a Quantum...

Страница 13: ...standard 110 220VDC power supply as it comes equipped with an internal Power Supply Unit PSU Quantum XL has a button on the left side of the touch panel near the VU meters that must be pressed for a...

Страница 14: ...e same Ethernet switch with the codec s LAN interface or remotely via the Internet Don t forget that it is necessary to set the IP addresses of the computer on which the web browser is running and of...

Страница 15: ...me and password settings to get access to the main web page The factory default configuration defines one user whose name is Administrator with no password associated and with full access to all confi...

Страница 16: ...as a streaming interface but it will be described in a different chapter III 4 1 Wired IP connection Ethernet All Quantum units except Quantum Lite come equipped with two Ethernet interfaces Each Ethe...

Страница 17: ...ters manually In the example above we are configuring them manually Optionally the DNS protocol can be configured It allows using domain names instead of IP addresses when establishing calls NOTE When...

Страница 18: ...reaming network configuration menu LAN1 interface will only transmit control data web control ProdysControlPlus or any other IP data not related to the audio streaming LAN2 RJ 45 connector on the rear...

Страница 19: ...e device the user must insert those SIM cards available for data connections into the SIM slots Each SIM slot in the SIM module has been assigned a number That number must be taken into account when c...

Страница 20: ...a connection to be used by the unit the APN Access Point Name user and password settings for each mobile network operator being used must be configured by the user To do that click on the following ic...

Страница 21: ...t is always advisable to use the manual setting The APN settings are widely available on the Internet for each 3G 4G data provider It is also possible to Enable or Disable the Pin number and to reset...

Страница 22: ...nection the user has to select what data interface will be used for the data connection Ethernet wired 3G 4G wireless Wi Fi wireless or custom a combination of any In this chapter we will only explain...

Страница 23: ...models If the selected interface is 3G 4G please take a look at the 3G 4G Monitor Screen to check how many 3G 4G connections have been detected and are ready to be used If the line corresponding to a...

Страница 24: ...When Ethernet is selected as streaming interface by default the Ethernet port labelled as LAN1 will be used for control and management whilst the secondary Ethernet port labelled as LAN2 will be used...

Страница 25: ...interface is ready to be used Otherwise the message Down would appear in this bar When working with 3G 4G as streaming network or when bonding different interfaces there will be some circles represent...

Страница 26: ...destination IP address the number of codec 1 or 2 if you are calling to a double codec the type of call and the connection Profile and press the Call button The destination address can be dialed manua...

Страница 27: ...lished If the connection gets through the connection bar for the connected line will light on green and will show the word Connected and the duration of the connection This indicates that the Program...

Страница 28: ...itter buffer i e the delay The longer the buffer more protection against packet losses and jitter but longer delay The shorter the buffer less protection but shorter delay The key point in being able...

Страница 29: ...This screen allows the user to access in real time and during the connection to some crucial parameters of the IP network performance such as lost recovered and obsolete packets jitter roundtrip This...

Страница 30: ...ossible communications statuses are Disconnected channel idle ready for next connection Connecting establishing the connection Connected streaming is ongoing Reconnecting resuming the connection Down...

Страница 31: ...o a double codec the type of call and the connection Profile and press the Call button There are several types of call Two Way Symmetrical Bidirectional Same connection profile in both directions Two...

Страница 32: ...the left bottom part of the main screen The configuration menu offers the following items Audio encoding parameters audio input and output configuration Streaming network and transmission reception pa...

Страница 33: ...Reference Manual Rev x x Quantum W Hw and Reference Manual Rev x x Quantum ST Hw and Reference Manual Rev x x Quantum Lite Hw and Reference Manual Rev x x QLST Hw and Reference Manual Rev x x Quantum...

Страница 34: ...IP or ISDN If IP is chosen it is possible to select the Device Ethernet Wi Fi 3G 4G or Custom The transmission protocol can be selected between BRAVE Prodys proprietary protocol allowing bandwidth agg...

Страница 35: ...on The more links are selected the more bandwidth the unit will be able to get for the audio streaming and the more secure the connection Up to 7 interfaces 4 interfaces in Quantum Lite might be linke...

Страница 36: ...nfirmation before finishing the connection This is useful to avoid accidental hang ups 1 Click call This option can be set independently for Program and Talkback channels When this option is chosen th...

Страница 37: ...Timeout the connection timeout is 15s by default 4 1 Disabling the Control Port means disabling the TCP protocol Therefore any streaming connection should be request from both parties to meet the com...

Страница 38: ...KBACK channel 6 Timeout the connection timeout is 5s by default 7 5 Usually this number is more important for the receiving Quantum since the local router must provide port forward on this port number...

Страница 39: ...on parameters The SIP protocol address menu permits the configuration of the ports and the SIP address involved in the communication SIP Port UDP port dedicated to SIP signalling for establishing upda...

Страница 40: ...his router into this box STUN Server request period It is possible to use the STUN protocol to get the public IP address of the unit when connecting to a WAN network by using a NAT enabled device such...

Страница 41: ...users Timeout Time in seconds before the user information registered at the previous server is flushed Therefore the information about the SIP user is updated from time to time It is also possible to...

Страница 42: ...l application scenarios are public IP networks like Internet over ADSL or Wi Fi access points The FEC port and the number of audio packets per FEC packet can be selected here Finally SIP and RTP QoS c...

Страница 43: ...PID Audio1 PID NOTE Quantum streams audio data encapsulated in MpegTS format over UDP protocol Please check that the remote codec support MpegTS over UDP IV 2 1 8 Streaming TX parameters BRAVE This me...

Страница 44: ...is a redundancy scheme where the traffic is sent simultaneously in all transmission interfaces available When bonding type is chosen it also allows the activation of Forward Error Correction FEC IV 2...

Страница 45: ...also capable to shorten decimation of samples in order to recover the initial delay when the jitter of the network decreases and the connection gets back to a more stable and consistent status The use...

Страница 46: ...eiving end will use the configuration defined by the user in this configuration section IV 2 1 11 Connection Profiles A connection profile is a user configurable set of parameters that will be enabled...

Страница 47: ...audio streams program and talkback Streaming Tx Parameters related with the transmission for example FEC Streaming Rx Defines the jitter buffer size of the remote codec which is going to receive the...

Страница 48: ...C parameters for the SIP communications Streaming Net The transmission protocol can be chosen between BRAVE SIP and any other available protocols This menu also allows the user to define the name of t...

Страница 49: ...43777 Email sales prodys net Web www prodys com Page 49 IV 2 1 13 Call log The call log stores the information about input and output calls including start end date and time and IP address More inform...

Страница 50: ...rs There is a new option in Streaming menu The Call Filters provides two lists to filter the calls into the device White List and Black List If the White List is enabled only the numbers or IP address...

Страница 51: ...the RS232 serial ports It is also possible to embed the auxiliary data in the audio streams when the compression format allows this possibility IV 2 2 Interfaces options menu In this menu several comm...

Страница 52: ...rol data simultaneously If Custom is selected but LAN1 is not selected LAN1 will only carry control data When Ethernet is selected as the streaming network configuration menu and LAN2 interface is dis...

Страница 53: ...ated to the Ethernet port will be established here IP address IP mask IP gateway DNS and DHCP The LAN1 interface is used for all IP communications when the LAN2 interface is not enabled Once LAN2 is e...

Страница 54: ...terface must be configured to match the configuration of that device so Auto should not be selected in this case At the top of the window and in case the unit is set to Auto mode the Current box will...

Страница 55: ...count that one thing is to configure this interface to connect to a Wi Fi network and another thing is how to use this interface in terms of streaming For example this interface might be defined as th...

Страница 56: ...re the different Wi Fi networks automatically detected by the unit will appear so that the user can just select any of them and add them to the list of Wi Fi networks on the main Wi Fi menu The type o...

Страница 57: ...e user has to click on the desired network and press the Connect button The current Wi Fi network in use will be shown on a green background colour whilst the selected Wi Fi network will be shown on a...

Страница 58: ...have been defined password configured and the user has selected one of the available networks just by pressing on the Connect button the unit will try to connect to that network NOTE In order for the...

Страница 59: ...card slot Some more detailed information on the status of the different 3G 4G connections can be found at the 3G 4G section in the monitor menu The network technology is also configurable The possibl...

Страница 60: ...600 bps When the serial interface is enabled the user can embed auxiliary data coming from the serial interface RS232 into the audio stream This data will be available at the output of the serial port...

Страница 61: ...ion address should be selected from the book Reboot Allows the user to reboot the unit upon the activation of a GPI Disable Fan This control enables or disables the internal FAN Load Preset Allows the...

Страница 62: ...rresponding input of the Quantum codec connected on the other end Alarm Active The output will be activated when one alarm is activated IV 2 2 8 Usage The Usage menu allows the user to get a real time...

Страница 63: ...nth selected very useful for monthly data plans of some mobile operators and set a limit to the consumption this is also useful for some data plans with a limitation in the speed or bandwidth IV 2 3 B...

Страница 64: ...highlighted that book entry becomes part of the Favourites list in the Call menu The book entries are composed of name address call type codec 1 or 2 and profile IV 2 3 2 Import and Export Book This...

Страница 65: ...ists of a name and a password that has to be used to log into the codec web interface or the touch panel menu Please take a look at the picture below with the login window IV 2 4 1 Creating a new user...

Страница 66: ...estriction for this user The following example is a typical profile for basic users Green colour stands for activation Those checkboxes that have been enabled will allow this user to access the corres...

Страница 67: ...ers a number of options for the codec maintenance The following pictures show the different menu options Take into account that the different options have been spread out over several different window...

Страница 68: ...l different IP services to identity the unit like the HTML web interface or the SNMP monitor protocol Version Shows firmware versions of the codec processors Date Time Date and time settings This opti...

Страница 69: ...e SNTP time server Default Configuration This option allows the user to restore the default configuration User can exclude from this restoration the following configuration sections o LAN Settings o P...

Страница 70: ...e licenses will be provided by Prodys as a file with extension hlf For more information about the different licenses available at any given moment please contact Prodys Sales Team at sales prodys net...

Страница 71: ...gration NOTE This functionality allows the user to control the unit remotely even though that unit being controlled is behind a firewall or even connected to the internet just via 3G or 4G This establ...

Страница 72: ...must configured so that ports TCP 54000 54001 54002 54003 and 54004 are opened and forwarded to the PC running ProdysControlPlus However this does not have to be done at the remote side where it is mu...

Страница 73: ...1 6943777 Email sales prodys net Web www prodys com Page 73 For versions v1 and v2 is possible to set the SNMP community For version 3 it is possible to set the user name and password as well as the a...

Страница 74: ...everal trap destinations can be set External protocol The Quantum Software Development Kit provides a tool to manage the Quantum units from external applications or devices other than ProdysControlPlu...

Страница 75: ...remote control of the codec It is also possible to change the default port 80 Fan Permits enabling or disabling the fan of the unit AUTO means that the Fan will start working when the temperature surp...

Страница 76: ...Control is chosen pressing the function key will turn the 4th and 5th rotary controls into the gain controls of the USB audio If USB Audio Control Gang Inputs is chosen the 4th and 5th rotary controls...

Страница 77: ...nfigure the email server it is necessary to fill the address port and login data It is also possible to try the email delivery sending a test email clicking on the Test Server button A list of recipie...

Страница 78: ...y level can be used to filter the email notifications This is configured on the Alarms window There are three levels Critical major and minor Blink this option makes the SYS led blink in the front pan...

Страница 79: ...hich can be turned active with a simple click Not only the encoder parameters can be configured also streaming specific parameters like 3G 4G or Ethernet bit rate automatic adaption or FEC can be defi...

Страница 80: ...mation Main Line Status buffers Audio TX RX VU meters audio compression status Streaming Complete statistics of the transmission 3G 4G Availability and strength of 3G 4G networks System local IP addre...

Страница 81: ...annel and the VU meter of the talkback Codec 2 channel give indication of the transmitted and the received audio level in dBFS IV 4 3 Streaming monitor screen The Streaming monitor displays the forego...

Страница 82: ...e Total Stats button is selected the data shown are the accumulated values from the beginning of the communication The statistical data is presented for the whole communication Global column but also...

Страница 83: ...the receiver and back Tx Kbps and Rx Kbps show the bit rate of the transmitted and received streams These values are interesting in the 3G 4G and Custom communications to know how the stream is divid...

Страница 84: ...s from credit to do so 3G 4G Technology detected This is the type of technology that has been detected by the unit It could be 3G HSPA HSPA UMTS LTE etc it is possible to access the configuration scre...

Страница 85: ...x 34 91 6943777 Email sales prodys net Web www prodys com Page 85 IV 5 Alarm menu Quantum is able to check and notify many alarm events By means on a red lamp Quantum warns the user about the occurren...

Страница 86: ...ges from blue to red The alarm menu is opened by clicking on the lamp between the Program and the TalkBack bars Inside each alarm category there is a list of possible alarms that can be selected indiv...

Страница 87: ...sales prodys net Web www prodys com Page 87 Clicking in the alarm type outside the checkbox a new window appears to select the severity level assigned to that alarm critical major or minor The alarm h...

Страница 88: ...itched off regardless of the motivation It is useful to know if the codec is switched off and for how long IV 5 1 2 Monitor CPU Temp Active when CPU s temperature is 70 C MB Temp Active when motherboa...

Страница 89: ...n of the disconnection can be selected by the user in the Alarms Properties menu Line 2 Disconnected Same as with line 1 Data Usage Warning Active if usage is less than 5 to reach the limit establishe...

Страница 90: ...ted option is selected in Files Rec menu and the selected memory device is not available Upload Can t Connect Active if the upload destination device is not available Download Failed Active if the dow...

Страница 91: ...Codec 2 No level Detected This alarm detects the absence of audio in input or output The configuration is done through Severity selection menu in which monitoring input output or both and thresholds...

Страница 92: ...o a file server or to another Quantum system When sending files from Quantum to Quantum ST not to a standard FTP server for example bandwidth aggregation of up to 7 different IP interfaces is allowed...

Страница 93: ...selected even simultaneously to create new recorded files The format of the audio file will be always uncompressed audio with wav extension Three actions might be controlled from this menu To start th...

Страница 94: ...t is possible to enable the Automatically record input signal when call connected option that sets the unit to record all audio contents being streamed on the line on a file If Automatically record in...

Страница 95: ...e the play and stop buttons on the tool bar at the bottom to start and stop playing the file This menu also offers the possibility of playing and mixing a file during an audio transmission pressing th...

Страница 96: ...ed file using the buttons on the right side The storage device can also be selected In portable codecs it is possible to make a top and tail edition of the recorded files using the touchpanel IV 6 4 F...

Страница 97: ...the Settings submenu the uploading destination can be chosen between an FTP server and a remote Quantum If a FTP server is chosen the FTP address and the user access rights must be filled in Those ar...

Страница 98: ...nk Once the file is in the remote Quantum unit a second FTP upload can be configured to transfer automatically any incoming files to a FTP server automatically In fact the option Automatically upload...

Страница 99: ...m a Windows compatible computer for reading deleting or copying The different media storage systems available on the unit will be shared as a regular Windows network drive To do this you must enable t...

Страница 100: ...34 91 6896880 Fax 34 91 6943777 Email sales prodys net Web www prodys com Page 100 2 Click on the Network area on the window s left side 3 Write the Quantum IP address on the dialog bar preceded by t...

Страница 101: ...Email sales prodys net Web www prodys com Page 101 4 The Storage folder will appear in the right area of the Windows Explorer window From this moment on the contents of the external storage unit of th...

Страница 102: ...ly selected will play continuously loop when a line drop is detected The file to be played can be selected from the files present in the storage device or can be uploaded to that device from the compu...

Страница 103: ...G711 A Law G722 MPEG 1 2 layer II ISO IEC 11172 3 13818 3 MPEG 4 AAC LC ISO IEC 14496 3 MPEG 4 AAC LD ISO IEC 14496 3 MPEG 4 AAC ELD ISO IEC 14496 3 MPEG 4 AAC HE ISO IEC 14496 3 Enhanced apt X OPUS M...

Страница 104: ...Stereo 32 4 x x 5 16 x x 64 10 6 4 4 8 11 7 4 9 6 1 80 14 4 x x 13 6 x x 96 14 4 6 1 6 1 15 1 6 1 6 1 128 20 11 3 16 3 15 1 11 7 13 6 160 20 14 5 20 15 1 13 6 13 6 192 20 14 5 20 15 1 15 1 15 1 256 x...

Страница 105: ...24KHz Mono Stereo Dual JStereo 64 11 2 8 2 10 5 80 11 2 8 2 10 5 96 11 2 8 2 10 5 112 11 2 8 2 10 5 128 11 2 11 2 11 2 160 x 11 2 11 2 192 x 11 2 11 2 256 x 11 2 11 2 V 1 1 5 MPEG 4 AAC LD Bit Rate Fs...

Страница 106: ...8 20 15 15 15 80 20 16 8 20 15 15 15 96 20 16 8 20 15 15 15 112 20 16 8 20 x 15 15 128 20 20 20 x 15 15 V 1 1 7 MPEG 4 AAC ELD Bit Rate Fs 48KHz Mono Stereo Dual JStereo 16 7 24 13 1 32 16 9 40 16 9...

Страница 107: ...e 107 384 x 20 x X x x V 1 1 9 Enhanced Apt X 24 bits Bit Rate Fs 48KHz Fs 32 KHz Mono ST Dual Mono ST Dual 192 x x 15 x 384 x x X 15 288 20 x X X 576 x 20 X X V 1 1 10 OPUS Bit Rate Fs 48KHz Mono ST...

Страница 108: ...r to be used for the update are connected to the same LAN Of the two Ethernet interfaces available in Quantum the update operation is always done through the labeled LAN1 2 If you have not set up a LA...

Страница 109: ...address segment If this is not the case and you need to modify Quantum s IP address follow these steps a Enter the IP menu by clicking the following icons on the touch screen menu or web page b The co...

Страница 110: ...chosen a DHCP server will provide Quantum with an appropriate IP address value for the subnet where it is connected To know the value of the address assigned the monitoring system screen can be consu...

Страница 111: ...address in the address bar 5 Start up the ProdysFlashPlus application 6 Click on browse and select the file with the new firmware version 7 All the units connected to the computer s network will be d...

Страница 112: ...b www prodys com Page 112 Press next to start the update process You will see a warning message telling you that all the contents of the Flash will be erased and that you must back up this data BEFORE...

Страница 113: ...o and alert you when it is finished You are able to abort the update process until the recording process begins At this point the cancel button is disabled In any case even if a power failure or a sim...

Страница 114: ...Prodys S L Tel 34 91 6896880 Fax 34 91 6943777 Email sales prodys net Web www prodys com Page 114...

Страница 115: ...age TCP 80 This port is used for web control via HTTP web browser VII 2 Streaming Ports TCP 53000 P RTCP Control This port is used to control any IP streaming communication This port can be disabled I...

Страница 116: ...of Ports DEFAULT PORTS Management Ports Web Page TCP 80 Prodys Control Plus TCP 54001 Prodys Flash Plus UDP 50013 External Protocol API SDK TCP 50031 Streaming12 Ports by Protocol TCP 53000 UDP 53000...

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