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MAYAH Merk II User Manual

Audio codec/mixer
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Mayah
Communications
Merk II
Audio Codec/Mixer
User Manual
Order-No. MHH001-1

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Summary of Contents for MAYAH Merk II

  • Page 1 Mayah Communications Merk II Audio Codec/Mixer User Manual Order-No. MHH001-1...
  • Page 2 MAYAH, CENTAURI, FLASHCAST are registered trademarks. All other trademarks used are acknowledged with this. © Copyright by MAYAH Communications GmbH in 2007 For copying this manual, even by extract, an explicit written permission of MAYAH Communications GmbH is required. © MAYAH Communication GmbH...

  • Page 3: Table Of Contents

    Set Display Contrast/Background Lighting................21 3.4. Enter Identification Number ....................22 Phonebook ..........................23 4.1. Saving Phonebook on a PC....................23 4.2. Transfer phone book to MERK II ..................23 4.3. Create Entry ........................24 4.4. Edit Entry..........................26 4.5. Delete Entry......................... 27 Configuration ..........................
  • Page 4 Generating HTTP Command Files................64 7.4.4. Executing HTTP Command Files.................. 65 7.5. Establishing IP connections ....................65 7.5.1. Unicast RTP ......................... 65 7.5.2. Multicast RTP ....................... 66 7.5.3. SAP Streaming ......................68 7.5.4. SIP Streaming ......................69 © MAYAH Communication GmbH...
  • Page 5 Updating via the RS232 Remote Port ................75 8.3. Remote Control Software Registry Entries................76 8.4. Remote Control Software Superuser Password..............78 Technical Data .......................... 79 Glossary ............................80 Menu Tree shown on the Merk II Frontpanel.................. 82 Centauri user manual revision level 01 /2007...

  • Page 6: Introduction

    1.1. Overview The new MAYAH MERK II is a portable Codec and Mixer. It is based on the well known and introduced CENTAURI product family. While typical portable devices have restrictions on the number of audio I/O and compatibility, the MERK II development has focussed on...

  • Page 7: Merk Ii Features

    4 peak level indications Figure 2: Merk II Features The new Merk II Portable Audio Codec/Mixer consists in part of well known components of the Centauri family. The 128x64 LCD Centauri Frontpanel visualizes the menu and shows all possible settings...
  • Page 8 During LINE-operation the red LED will only be lit, if the headroom of 18 dBu is used to full capacity. The entrance level then has to be lowered accordingly, since the Merk II doesn’t feature a potentiometer in front of the A/D-converter.
  • Page 9 Table of Contents The block diagram shows how the Merk II works: Figure 3: Merk II block diagram Event-dependent Control CENTAURI Gateways can be programmed such that they react to particular, pre-determined events in a set way. Events can thus be linked with actions.

  • Page 10: First Steps / Quick Start

    1.3. First Steps / Quick Start The Merk II Portable Audio Codec/Mixer has a display and a keyboard on the front of the device. You can therefore set up a connection to another communication partner im- mediately as soon as you have unpacked such a device and connected it up to the mains and ISDN.
  • Page 11 Table of Contents In both cases you can follow the establishment of the connection on the display or in the program window: Figure 6: Establishing a connection If the establishment of the connection is successful, the device automatically synchronizes itself with the partner at the other end of the line. If speakers are connected to the device, you too can hear the audio signal from the other end.

  • Page 12: Controls On The Device

    Controls on the Device 1.4.1. Switching On and Off All Merk II is switched on and off at the rear of the device (see Figure 12). After switching on and in rest mode the display (only available on the 2001/3001) shows...

  • Page 13: Mask Display And Key Controls

    Table of Contents 1.4.3. Mask Display and Key Controls The mask representation and key controls follow the following rules: Figure 8: Mask display The mask title is top left (in Figure 11 : “Analog Levels”). It is shown inverse. The action description is found to the right of the mask title.

  • Page 14: Set-Up Dialog Selection

    Controls on the Device 1.4.4. Set-up Dialog Selection After you have selected SETUP and pressed the Setup appears. In the Setup Merk II offer the following dialog selections: New Phonebook Entry (see section “CreateEntry”) – Edit Phonebook Entry (see section "Edit...

  • Page 15: Remote Control Using Software

    – IP network and normal RJ45 network cable For controlling via IP, the MERK II must be given a free IP address that corresponds to the sub-network mask of your network. Where larger networks are concerned the user should in all events contact the network administrator.
  • Page 16 Figure 10: Setting the MERK II remote control via IP or RS232 Click on ”IP” and enter the IP Address of the MERK II that is to be controlled with the software under ”Add New MERK II”. Port 2000 has nothing to do with Port 2001 that has been entered in the MERK II under ”Network”! Changing one of these two or both values results in communica-...

  • Page 17: Automatic Udp-Scan

    9600‘. All found Merk IIs are listed below with information about number of comport, baudrate and Merk II name/serial number in case of scanning serial interfaces or IP-address and Merk II name/serial number in case of scanning the LAN. Centauri user manual revision level 01 /2007...

  • Page 18: Installation

    "Technical Data" . 2.3. Connections Figure 12: Plug-in field Merk II (rear side) 2.4. Program Installation To install the remote control software, start “SETUP.exe” in the software list on the CD- ROM supplied and follow the installation program instructions. © MAYAH Communication GmbH...

  • Page 19: Start Remote Control Software

    Explorer. The remote control program automatically starts the COM interface after it is called up. If a Merk II is connected to one of the COM interfaces, the program recognizes the gateway and synchronizes itself with it automatically.

  • Page 20: Basic Settings

    3.1. Set Display Language The displays on the Merk II Audio Codec/Mixer can appear in various languages. On delivery the devices are set to English. This is why all the respective illustrations in this handbook show the display in English.

  • Page 21: Set Time, Date And Date Format

    CENTAURI Gateways have an internal clock that is supplied with a battery in the event of a power cut etc. This is why it is only rarely necessary to set the internal clock. To set the Merk II’s internal clock and/or date and/or the format for time displays, proceed as follows:...

  • Page 22: Enter Identification Number

    Enter Identification Number 3.4. Enter Identification Number At the factory each MERK II is assigned a unique serial number. This identifies each MERK II during communication. In addition the operator can give a Merk II an identification number consisting of numbers and letters (maximum 128 characters).

  • Page 23: Phonebook

    The file automatically includes the ending “.ctr”. Click on ”OK. The phone book is then read out of the MERK II and saved in the given file. This is a pure ASCII file that can be edited with a simple text editor.

  • Page 24: Create Entry

    (see section "abbreviated "). In all other cases, a consecutive number is assigned when the entry is saved. © MAYAH Communication GmbH...
  • Page 25 Table of Contents (b) Via the remote control software: Click on the ”Phone book” button or press the ”P” key. The following dialog window opens: Figure 19: dialog window PHONE BOOK Click on “New” or press the “Insert” key on the keyboard. The following dialog window opens: Figure 20: dialog window...

  • Page 26: Edit Entry

    Double-click on the entry to be edited or press the “E” key. The “Change Phonebook Entry” dialog window opens (corresponds to Figure 20). Edit the data as desired. To save, click on ”OK” or press the key on the keyboard. The change in the phone book is now saved. © MAYAH Communication GmbH...

  • Page 27: Delete Entry

    Table of Contents 4.5. Delete Entry Existing phone book entries can be deleted at any time. (a) Via the front panel: Select the SETUP option in the Start mask (see Figure 4). The Setup mask appears. Select DELETE PHONE BOOK ENTRY and press .

  • Page 28: Configuration

    This setting is then used for the decoder and also the MERK II’s encoder. This guarantees that a bi-directional audio connection also comes into being for these devices in most cases, without making additional settings.
  • Page 29 384 kbit/s stereo H.221 (format = auto). If, on the other 192 kbit/s mono 192 kbit/s mono hand, a MERK II calls a CDQPrima, the channel connections are established too quickly. The “Format = CDQ/H.221” setting assures that channel connections are established one after the other.
  • Page 30 Figure 22: The CODEC SETTINGS dialog window Select the desired value the individual encoder lines. Note: The selection options for the decoder are explained in section “Set Decoder”. To make the settings effective, click on ”OK”. © MAYAH Communication GmbH...

  • Page 31: Set Decoder

    Table of Contents 5.1.2. Set Decoder You can pre-set the decoder with 2 operational modes: Dependency: ”remote”; to this the decoder sets itself to the parameter that it receives – from the distant encoder when the connection is made; Dependency: ”local”; with this the decoder uses the locally set parameters; –...

  • Page 32: Set Inverse Multiplexer („Format")

    In the context of MPEG coded audio signals this procedure is often called inverse multiplexing (IMUX). There are several different procedures for inverse multiplexing. The Merk II supports the international standard J.52 and the proprietary procedures of various manufacturers.

  • Page 33: Set Communication Interface

    You can determine via which communication interface a connection is to be established. The following are available – ISDN, Loop (for test purposes) and when the MERK II is correspondingly configured, – – To set the communication interface, proceed as follows:...

  • Page 34: Set Communication Basic Conditions

    ANCILLARY Figure 29: mask ANCILLARY Select the desired parameter with the keys and press Select the desired value with the keys and press Repeat this for each parameter to be changed. Finish the setting by pressing © MAYAH Communication GmbH...

  • Page 35: Set Device Address

    The entered IP address is now transmitted to the MERK II and entered there. For reasons of communication security you should now close the remote control soft- ware and restart. Switch off the appropriate MERK II and switch it back on after a few seconds. Centauri user manual revision level 01 /2007...

  • Page 36: Configure Isdn Adapter

    B-Channel – To be able to set the MSN of a B channel, the corresponding B channel must first be selected. Get Dialtone – The purpose of this item is that a MERK II can be used just as well on a telephone system as on a multiple device line.

  • Page 37: Setting Dial Protection And Isdn Service Protection

    “ISDN service protection” – Dial protection allows you to determine whether or not the MERK II will accept all calls and network queries, or only calls and network queries from callers who have already been entered to the phone book.
  • Page 38 Figure 36: ISDN SERVICES Dialog Box Click the check boxes which need to be changed. means “ISDN service identification disabled”. means “ISDN service identification enabled”. In order to activate your new settings, click the “OK” button. © MAYAH Communication GmbH...

  • Page 39: Set Quantization Procedure For G.711

    Table of Contents 5.1.9. Set Quantization Procedure for G.711 Depending on the country, it can be necessary to set quantization procedure G.711 for ISDN telephony. This setting must be made when setting up operation and when the procedure used is changed (e.g. when the location of the device is changed). To set the quantization procedure, proceed as follows: (a) Via the front panel: Select the...

  • Page 40: Set Time Limit (Timeout)

    The time after which the MERK II should break off the connection attempt when no synchronization (framing) is achieved is set with the “Disconnect” parameter. After this time has expired the ISDN channel(s) are automatically cut off.

  • Page 41: Switch Dual Mode On/Off

    Table of Contents 5.1.11. Switch Dual Mode On/Off Dual Mode must be switched on if bilingual sound is to be transmitted or if a completely separate transmission is to be made to different destinations over two channels. To switch Dual Mode on or off, proceed as follows: (a) Via the front panel: Select the option in the Start mask (see...

  • Page 42: Set Sources For The Input Channels

    Select the appropriate item with the keys and press Select the desired parameter with the keys and press Choose at “Director Channel” the source, which input audio should be heard, but not broadcasted. To end press the key. © MAYAH Communication GmbH...

  • Page 43: Set Microphone Settings

    Table of Contents 5.1.13. Set Microphone Settings Here you can adjust different settings for the microphone channels on the front side. This setting is only possible via the front panel, and not via the remote software: (a) Via the front panel: Select the option in the Start mask (see Figure...

  • Page 44: Headphone Settings

    . The Line In mask appears. Figure 47: Headphone Select Item Select the appropriate item with the keys and press Select the desired parameters with the keys and press To end press the key. © MAYAH Communication GmbH...

  • Page 45: Line Out Settings

    Table of Contents 5.1.16. Line Out Settings Here you can adjust different settings for the line out channels on the rear side. This setting is only possible via the front panel, and not via the remote software: (d) Via the front panel: Select the SETUP option in the Start mask (see...

  • Page 46: Mixer Profiles

    Individual Parameters 5.1.18. Mixer Profiles Here you can handle the profiles for the mixer settings. Mayah preset profiles can not be changed or deleted. This setting is only possible via the front panel, and not via the remote software: (f) Via the front panel:...

  • Page 47: Display Hardware Equipment At Program Start

    Display Hardware Equipment at Program Start After the program starts, the remote control software automatically displays the hardware equipment available in the MERK II if the corresponding option has been set. To switch the display option on and off, proceed as follows:...

  • Page 48: Switch Progress Display On/Off

    Figure 54: OPTIONS dialog window Click the control box next to “Enable Disconnect Dialog”, A tick in the control box means “display on”, no tick means “display off”. To make the setting effective, click on “OK”. © MAYAH Communication GmbH...

  • Page 49: Release Software Module

    MPEG 4 AAC Low Delay – ADPCM 4SB (Micda) You can obtain the respective release codes on order from Mayah Communications after stating your MERK II serial number. When you have received the release key code for the desired software module, enter it as...

  • Page 50: Communication Profiles

    "Saving Phonebook on a PC “). You can also transfer the communication profiles back to a MERK II and use the entries there (see section "Transfer phone book to MERK II "). Once you have created a communication profile file you can distribute the same communication profile file to as many MERK IIs as you wish.

  • Page 51: Edit Communication Profiles

    Table of Contents 5.2.2. Edit communication profiles To edit a communication profile, proceed as follows: (a) Via the front panel: Select the option in the Start mask (see Figure 4). The Setup mask appears. SETUP Select EDIT PROFILE and press .

  • Page 52: Save Communication Profile On The Pc

    Transfer communication profile file to the CENTAURI You can also transfer the communication profiles along with the phone book entries from the PC to a MERK II again and use the entries there (see section "Transfer phone book to MERK II ").

  • Page 53: Connections/Transmissions

    Table of Contents Connections/Transmissions Merk II can set up connections to other communication partners on their own. They can also accept incoming calls automatically. 6.1. Automatic Acceptance of Calls Merk II accepts incoming calls automatically and synchronize themselves with the station calling corresponding to the configuration.

  • Page 54: Prepare Connection/Transfer

    AES/EBU input has to work. In order to adapt the MERK II to e.g. a 96 kHz studio environment in this case, the devices have sampling rate converters. It is thus possible to set the sampling rate of the encoder to the optimum value for the transmission procedure and bit rate independent of the environment.

  • Page 55: Set Up Connection

    Figure 59: mask SPEED DIAL This function is not available if configuration functions are currently being used at the Merk II (e.g. parameter settings for the audio encoder, scrolling through journal entries etc.). Press the key. Enter a number at the keypad with a maximum of two digits which has been assigned to phone book entry and press the key.
  • Page 56 Select the desired parameter in the dialog window. Click on The device then starts to set up the connection to the desired communication partner. You can follow this process on the MERK II’s display in the or in CONNECTION SETUP...

  • Page 57: Execute And Monitor Transmission

    Specific values: Depite of the normal scala which accent the DB-values in steps of five, there are two particular values diplayed: -9 dB : normally used headroom -18 dB : with 18 dBu fullscale (default Merk II setting), –18 dBf is equal to 0 dBu...
  • Page 58 Name of phone book entry Green: connection time without synchronization (if exists) Lines used Red: connection time with synchronization Connection Status Name of local Centauri Local setting Dependency Synchronization display Figure 66: Remote control software status display © MAYAH Communication GmbH...

  • Page 59: Indications

    Table of Contents 6.5. Indications The Merk II is able to react to internal and external events. There is more about this topic on page 6.6. Cut Connection You can cut an existing connection at any time. (a) Via the front panel:...

  • Page 60: Connection Protocol

    The connection direction is displayed well as date and time (for display format see section "Set Time, Date and Date Format "). The symbol ‘>' means outgoing call (MERK II has called), and the symbol ‘<' means incoming call (MERK II was called).

  • Page 61: Internet Protocol

    The devices of the CENTAURI 3000 series also permit the transport of digital audio signals via the network interface. Each Merk II can be connected to a normal local Ethernet via the network interface. Apart from the physical connection it is only necessary to enter the unique IP address.

  • Page 62: One Ip-Packet Carries More Than One Frame

    In both situations it is necessary to get access to the frame header to be able to read the information about frame length, bit rate, sample rate etc.. How to get this information is dealt with in the following chapter. © MAYAH Communication GmbH...

  • Page 63: Header Information

    Table of Contents 7.3. Header information The structure of the headers for MPEG Layer2/3, AAC/CT-aacPlus and AAC Low Delay are described in the following chapters. 7.3.1. MPEG Layer 2 / Layer 3 frame header {++++ ++++ ++++-------------------------- Synch |||| |||| |||| +------------------------ Ident |||| |||| |||| |++---------------------- Layer |||| |||| |||| |||+--------------------- Protection...
  • Page 64 Header information LENGTH_MASK_AAC_LD = $001FFF00;{0000 0000 0001 1111 1111 1111 0000 0000} © MAYAH Communication GmbH...

  • Page 65: Http Streaming Over Ip

    Additional lines are not read. The file can be saved under any name with the .htm extension. After generating the command file, it has to be transferred by an FTP client program to the D:\www\ folder at the Merk II, where it is made available via the net.

  • Page 66: Executing Http Command Files

    Merk II Exa/stream.wav http//Merk II-address or name/ activates a search in the www folder of the addressed Merk II. The name of the command file is only significant for searching. The extension only de- fines how the data should be interpreted. This option makes it possible to execute different formats from any web browser, which is important for HTML programming.

  • Page 67: Multicast Rtp

    MERK IIs can be used as Multicast Sender and Multicast Receiver. For this the new RTP protocol implementation of MERK II is used. · MERK II and other decoders (like Winamp 5.05): MERK II is used as Multicast Sender. · MERK II and GANYMED 1002 1.
  • Page 68 Since system software version 2.1.0.47 no more ‘r’ is necessary Note 2: A special port can be selected by the optional suffix ‘:<port number>’ (e.g. r225.0.0.2:5004) · Click the OK-button to establish connection 2.3 Establish Connection (other decoder) © MAYAH Communication GmbH...

  • Page 69: Sap Streaming

    · Encoder dependency: Remote · Encoder algorithm: Algorithm supported by the other side codec Note: With SAP streaming the MERK II supports the algorithms AAC (MPEG4) and AAC (HE) · Decoder dependency: Remote 1.2. Establish Connection Click the CONNECT button to open the Connect-dialog: ·...

  • Page 70: Sip Streaming

    Establishing IP connections 2. Configuration steps at MERK II decoder 2.1 Codec settings Configure the codec settings via menu item Settings/Codec: · Interface: IP/RTP · Encoder dependency: Remote · Decoder dependency: Remote 2.2. Establish Connection Click the CONNECT button to open the Connect-dialog: ·...
  • Page 71 By registering itself with the registration server the current IP address of the mobile Centauri is mapped to a SIP address (like sip:centauriB@mayah.com). Now Centauri A: be can use this SIP address to connect to Centauri B. To accomplish this Centauri A first contacts a Location Server that maps the SIP address to the current IP address of Centauri B and redirects the call to this IP address.
  • Page 72 Encoder algorithm: Algorithm supported by the other side codec Decoder dependency: Remote 3.2. Establish Connection Click the CONNECT button to open the Connect-dialog: Select interface to IP Select SIP Type in the SIP address Click the OK-button to establish connection © MAYAH Communication GmbH...

  • Page 73: Troubleshooting

    Troubleshooting 8.1. Monitor Device Condition If any problems arise with the MERK II, it is recommended that you first check the device’s operational data. For this purpose the device displays the operational data. (a) Via the front panel: Figure 72:...

  • Page 74: Update Device Software

    You can update your device software via ISDN, via the RS232 interface or via the Ethernet interface. If there is a connection to the internet, the current MERK II software can be downloaded into the device from the Mayah web site direct.

  • Page 75: Software Updating Via Isdn

    EXPERT UPDATE CENTAURI VIA ISDN Select the desired software version if necessary. “Newer” means that it should be up- dated with a newer software version than is present in the MERK II. It is of course also possible to downgrade.

  • Page 76: Updating Via Ftp

    Update Device Software 8.2.3. Updating via FTP To update the MERK II software via RS232/Ethernet interface you have to use the remote control software. Prerequisite is that it is possible to control from the PC via IP. Select EXPERT UPDATE CENTAURI VIA RS232/FTP/INTERNET .

  • Page 77: Remote Control Software Registry Entries

    Port – If more than 1 MERK II is to be controlled, create an own key for each further MERK II to be controlled in the group “IP” in addition to “Address” with the name Address1 (for the first MERK II) –...
  • Page 78 HKEY_CURRENT_USER\Software\Mayah Communications\Centauri Remote\IP – Address: Type Character series; Current IP Address Address1 to Address200 – Type Character series IP Addresses of MERK II’s still to be addressed IPControl – Type: Character series, in capitals; TRUE=IP Control FALSE=RS232 Control a) HKEY_CURRENT_USER\Software\Mayah Communications\Centauri...

  • Page 79: Remote Control Software Superuser Password

    If you no longer know the Superuser Password, it is easy to find it out. It is stored in the registry under: HKEY_CURRENT_USER \ Software \ Mayah Communications \ Centauri Remote \ SuperUserPassword. Switch off Superuser Password Protection You can switch off the protection provided by the Superuser Password.

  • Page 80: Technical Data

    Technical Data Device Identification Number Each MERK II has its own identification number. + 2 x Line In order to display your MERK II’s identification number, proceed as follows: Select the option in the Start mask (see Figure and press...

  • Page 81: Glossary

    FTP superimposes on the Transmission Control Protocol (TCP). The MERK II has an FTP Server that permits file access to the MERK II Flashmemory. This way, firmware updates can be installed on the MERK IIs easily and securely.
  • Page 82 In addition, TCP guarantees that the data packages arrive at the re- ceiver in the same order that they were sent by the transmitter. In MERK II, TCP is used as the default transport protocol for audio over IP. A TCP connection is always bi-directional, both encoder and decoder are activated.

  • Page 83: Menu Tree Shown On The Merk Ii Frontpanel

    Table of Contents Menu Tree shown on the Merk II Frontpanel Name Disconnect Dest. 1 Enc-Profile Direct Dial (ISDN) Dest. 2 Connect Dec-Profile Last (<name>) Connect! Interface Phonebook Entry 1 Dest 1 Levels Entry n Encoder Status Dest n Decoder...

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