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DM100 Bitstream Analyzer User`s Manual

1. During the upgrade the display will show progress When complete the DM100 will reboot The data rate is fixed at 115 2 kbps Note This function can be accessed directly Turn off the DM100 by pressing the Power button Press the Power button again while holding down the Setup button 4 10 Dolby DM100 User s Manual Operation Setup Mode Note When powered from the external power supply the Power Management setting is ignored and the unit remains switched on The LCD backlight and keypad backlights are also turned on overriding the LCD Backlight setting 5 1 Dolby DM100 Users Manual Chapter 5 Reference Information Data Transfer Connect the RS 232 port on the front of the DM100 to a computer using the cable provided The RS 232 serial interface is used for e Test bitstream loading e Data logging Status information can be transferred from the DM100 via a terminal program The status information is transmitted in the form of text messages that can be read on the terminal display e Firmware upgrades Test Bitstream Loading Test bitstream loading is accomplished using the Gen Control setup menu Press the Setup button then use the Down button to step to the Gen Control menu See Section 4 2 for more information The table at the end of this section lists possible error messages Test bitstreams are loaded at a fixed data rate of 115 2 kbps Data Logging This function ca
2. After 12 characters including Save Settings spaces have been entered the ENTER Yes ESC No preset and name can be saved 4 8 Dolby DM100 Users Manual 4 5 Left Right VO Control The VO control menu configures the physical input and output connections ofthe DM100 Input Select allows the user to choose a specific physical input rather than the default of Autodetect Gen Clock Source chooses the reference signal for Operation Setup Mode the generator DAC on Non Audio sets audio output mute or active when the incoming bitstream is flagged as non audio data Optical Output switches the Toslink optical output on or off If not required disable it to extend battery life Logging Output can be used for long term data recording See Section 5 1 for more information Passthru Ch Swap allows the output channels to be swapped or skewed when in Pass Through mode DM100 Main Setup I O Control Autodetect BNC XLR Optical Digital Input Video Ref 48 kHz Internal 48 kHz Enter I O Control Input Selec Mute Active Enabled Disabled Normal Swapped Skewed I O Control Passthru Ch Swap Input Swapped Output Skewed Output LO L1 L2 L3 RO R1 R2 R3 RO R1 R2 RO R1 R2 R3 LO L1 L2 L3 LO L1 L2 L3 4 9
3. Od Dolby DM100 Bitstream Analyzer User s Manual DM100 Bitstream Analyzer Status Switches display to top level status menu shows details of input or output bitstream Power Hold for two seconds to turn DM100 on or off PCM Dolby Dolby V Ref Shift LCD Digtal E Momentarily enables or disables LCD backlight Shift P1 P4 Selects user assigned custom presets Esc Moves display up one level in menu tree or aborts current operation Up Down Buttons Scroll through status or setup menu trees changes settings Interface Connector For test bitstream uploads data logging and firmware upgrades Volume Buttons Control level of speaker or headphone output speaker is disabled when headphone is used LEDs R he Flashing Red Low battery Error Flashing Red Error counter changed Red Error condition See Error Stats menu Section 3 2 8 for these functions PCM Dolby Digital Dolby E Green Receiving indicated input signal Flashing Green equal on off Decode Format setting does not match the input Flashing Green long on AES3 channel status is being modified in Passthrough Mode See Section 4 3 V Ref Green A valid video reference input signal is present and unit is in a mode that requires it Off Current mode does not require a video reference Flashing Green Current mode requires a video reference and it is invalid or not present Mon Resets
4. PUSH Push the cover in the direction shown to slide it out Battery Cover Insert four AA batteries alternating the positive and negative terminals and replace the cover 2 1 Dolby DM100 User s Manual Getting Started Power Button To turn on the DM100 press and hold the Power button down for two seconds The display reads as shown for approximately one second while a self test diagnostic runs Model DM100 Unit Name The power on process ends with the DM100 operating in the last used state If the diagnostic test fails the Error LED lights and an error message is displayed To turn off the DM100 press Power again The display reads Power Off and the unit shuts off Power Off Note Any changes made to the system settings may be lost if the unit is powered off by unplugging the external power supply unless batteries are installed Battery Low LED The front panel battery LED flashes when the batteries are nearly discharged If the battery voltage drops below a usable level the DM100 display reads Dead Battery and the unit shuts off Dead Battery Auto Power Off When the DM100 is powered from batteries external power supply not connected the unit can be set to turn itself off after a selectable number of minutes with no user activity 5 10 15 or 30 minutes This feature can be disabled The factory default setting is 15 minutes The wait time
5. 1 414 3 0 dB 1 189 1 8 dB 1 000 0 0 dB 0 841 1 5 dB 0 707 3 0 dB 0 595 4 6 dB 0 500 6 0 dB 0 999 dB Not Active Does Not Exist N A Not Indicated Not Srnd EX Dolby Srnd EX KKKKKKKKKKKKKKKK Not Active Does Not Exist N A ot Indicated Disabled Enabled KKKKKKKKKKKKKKKK A Standard HDCD Does Not Exist A DD Pref Dwnmx Lt Rt DD Pref Dwnmx Down DD Dolby H Mode Down DD A D Conv Type 3 20 Dolby DM100 Users Manual DD Dual Mono MD After pressing Enter to select this function press the Down or Up button to select the Dual Mono metadata parameter you wish to display A typical example screen is shown ENT Dual Mono Dialogue Normalization Status Dual Mono Mixing Level Status Dual Mono Room Type Status CHE 48 dB 0 48 dB Line 24 dB 0 24 dB RF DD Dual Mono MD ER to view KKKKKKKKKKKKKKKKK 1 dB 2 dB 3 dB al dB N A 80 dB 81 dB 82 dB 111 dB Does Not Exist N A Not Indicated Large Small kk kk RR RR kk kk Does Not Exist N A Press Enter to toggle between a numeric display and a bar graph level display 3 21 Operation Status Mode DM Dialogue Lev
6. 24 dB 0 124 dB Px RF Ov Protect RF overmodulation protection P2 RF Ov Protect Disabled If dynamic range control presets are present None Film Standard Film Light Music Standard Music Light Speech Invalid N A Disabled Enabled N A 3 9 Dolby DM100 User s Manual Operation Status Mode Px Center Dwnmx A typical example is shown for the Dolby E Center Downmix display P2 Center Dwnmx 0 500 6 0 dB 0 707 3 0 dB 0 596 4 5 dB 0 500 6 0 dB KAKKAKAKKAKAKKK N A Px Srnd Dwnmx A typical example is shown for the Dolby E Surround Downmix display P2 Srnd Dwnmx 0 707 3 0 dB 0 707 3 0 dB 0 500 6 0 dB 0 999 dB KKK KKK RR RR RR KKK N A Px Dolby Srnd A typical example is shown for the Dolby E Surround Mode display P2 Dolby Srnd Not Indicated Not Indicated Not Dolby Srnd Dolby Srnd KKKKK KKK RR RR RR N A 3 10 Dolby DM100 User s Manual Operation Status Mode Px Mixing Level A typical example is shown for the Dolby E Mixing Level display P2 Mixing Level 80 dB 80 dB 81 dB 82 dB 111 dB Does Not Exist N A Px Room Type A typical example is shown for the Dolby E Room Type display P2 Room Type 80 dB Not Indicated Large Small
7. 27 dB DM Dialogue Lev Down Ifthe Dolby Digital bitstream is not a Dual Mono bitstream the level displayed will be 0 Dolby DM100 User s Manual Operation Status Mode DD Format A typical example is shown for the Dolby Digital Format status display DD Format Pro 32 bit Pro 32 bit Pro 16 bit Chl Pro 16 bit Ch2 Pro 16 bit Ch1 amp 2 Consumer N A DD Sample Rate A typical example is shown for the Dolby Digital Sample Rate DD Sample Rate 48 kHz status display 48 kHz 44 1 kHz 32 kHz N A DD Bitstream ID A typical example is shown for the Dolby Digital Bitstream ID DD Bitstream ID 8 status display 1 8 N A 3 22 Dolby DM100 User s Manual Operation Status Mode DD Stream A typical example is shown for the Dolby Digital Stream Number status display 0 Dolby DM100 Users Manual 3 2 3 AES3 Status Menu Operation Status Mode After pressing Enter to select this menu press the Down or typical example screen is shown ENT S3 Status R to view Not Indicated AES3 Mode Professional Up button to select the AES3 parameter you wish to display A Reserved 1 3 Professional No Emphasis Consumer Reserved 5 N A 50 15 us Emph J 17 Emph Audio N A
8. 8 Position Note This unit is a DCE device designed for connection to a DTE device The TX is the data input and the RX is the data output XLR Connectors Pin Connection 1 Signal Ground 2 Signal 3 Signal Headphone Connector Pin Connection Tip Left Channel Ring Right Channel Sleeve Common Dolby DM100 User s Manual Reference Information 5 4 DM100 Specifications Sampling Rates 48 kHz for all modes 32 kHz and 44 1 kHz for Dolby Digital and PCM Video Frame Rates 29 97 and 25 fps Frequency Response Digital Outputs 20 Hz 20 kHz 0 25 dB Distortion lt 0 01 at 1 kHz lt 0 02 20 Hz 20 kHz Dynamic Range gt 100 dB Digital Audio Inputs AES EBU via XLR female connector 110Q AES3ID 1995 SMPTE 276M via BNC connector 75Q Fiber optic via Toslink connector Input word lengths up to 24 bits Supported digital bitstreams 16 and 32 bit Dolby Digital Consumer Dolby Digital 16 20 and 24 bit Dolby E Non audio AES3 Reference Video Input Analog composite NTSC or PAL black burst video reference 1 Vp p via RCA connector 75Q internally terminated Digital Audio Outputs AES EBU via XLR female connector 110Q AES3ID 1995 SMPTE 276M via BNC connector 75 Fiber optic via Toslink connector Output word lengths up to 24 bits Serial Input Output Port 8 pin female mini DIN RS 232 5 5 Headphone Output 5 8 dBu max adj
9. Input is DolbyE DE Input is Dolby Digital DD Prog 1 8 Displays program Input is PCM PCM number ifthe input No input or channel not present in input bitstream blank bitstream is Dolby E Blank Input not Dolby E Input Level ENT ER to view Ch1 8 dB RMS dB Peak Chi DI 10 dB 6 dB Press Enter to toggle between numeric display and a bargraph RMS level display gt Ch 2 ofa 1 1 stream C2 90 dB RMS level 0 dB Digital Full Scale E Prog 1 L Left Front Right Front Center Low Frequency Effects LFE Left Surround Ls Right Surround Rs Mono Surround S Ch 1 ofa 1 1 stream C1 GO Channel not present in Blank input bitstream 3 26 Dolby DM100 Users Manual 3 2 5 Generator Status Display Operation Status Mode Press Enter to display Generator status The possible display combinations are shown below Generator Waveform is Sine ENTER to view XXXXXHZ yydB or Square Frequency and level in dBFS As A r Waveform is Frequency The unit is generating a Generating F1 F2 yydB Sweep Frequency range and non PCM bitstream bitstream name level in dBFS OR yydB Waveform is Pink or SR White Noise Level in dBFS The unit is generating a PCM pame N A Waveform is Silen
10. 448kbps Input Data Type Dolby E Valid Dolby E bitstream Dolby Digitar Pout ooie Dier Active Input Connector bitstream Valid 16 bit Dolby Digital A Set to Autodetect DD PCM ae en B Set to BNC packed in Left channel oe X Set to XLR PCM DD Valid 16 bit Dolby Digital o Set to Optical packed in Right channel p DD DD Two valid Dolby Digital bitstreams PCM Valid PCM bitstream NULL data NULL data type bitstream Pause data Pause data type bitstream Data Type X Other data type bitstream No Input No incoming bitstream The following pages describe the information displayed on the second line for each type of input data 3 1 Dolby DM100 Users Manual Dolby E Operation Status Mode When the incoming bitstream is Dolby E the following information will be displayed Dolby E DL Program Configuration 5 1 2 5 1 2x1 16bit 4 4 20bit 4 2x2 24bit 4 2 2x1 4 4x1 4x2 3x2 2x1 2x2 4x1 2 6x1 8x1 Sl 4 2 4 2x1 3x2 2x2 2x1 2 4x1 6x1 4 2 2 2 2x1 4x1 Ted 7 1scrn Invalid Dolby E program configuration kK kK Ke 3 2 Bit Depth Dolby DM100 User s Manual Operation Status Mode Dolby Digital When the incoming bitstream is Dolby Digital the following information will
11. DC Filter a P2 Lowpass Filt Px Lowpass Fil Px LFE Filter Px Srnd 3dB Attn Disabled Px Srnd Ph Shift ene es When any of these Dolby E metadata programs is selected the DM 100 displays the same information as shown in the example A typical example is shown for the Dolby E Lowpass Filter display Px Begin Gain Px End Gain A typical example is shown for the Dolby E Begin Gain and End Gain display Px Begin Gain ENTER to view P2 LFE Begin Gain 12 34 dB On Programs 1 2 3 4 Px L Bgn Gain Gain yy yy dB inf On Programs 1 8 N A AS d 1 On Program 1 N A indicates Dolby E input is not present or DM100 decode format is not Dolby E On Programs 1 2 3 4 On Program 1 E Bgn Gain On Program 1 On Programs 1 2 3 13 Dolby DM100 Users Manual 3 2 2 Operation Status Mode Dolby Digital Metadata Input Menu After pressing Enter to select this function press the Down or Up button to select the parameter you wish to display Dolby Digital MD ENTER to View DD DD DD DD DD DD DD DD DD DD DD Dialogue Lev Down Channel Mode Down LFE Channel Down Data Rate Down Bitstrm Mode Down Line Mode Pro Down RF Mode Pro Down Center Dwnmx Down Srnd Dwnmx Down Dolby Srnd Down ixing Level Down DD Room Type Down DD Copyright Down DD O
12. Dolby DM100 User s Manual Operation Setup Mode 4 6 System Settings The System Settings menu contains options for setting user preferences for the DM100 RS 232 Baud Rate controls the speed of the RS 232 port logging data Unit Name allows entry of up to 12 characters to give a DM100 a unigue identity This is displayed during power on The Power Management function controls how long the unit remains switched on after the last button press when operating on battery power LCD Backlight and Contrast Adjust control aspects of the LCD Firmware Upgrade is used to load new firmware into the DM100 DM100 Main Setup System Settings Used for data logging 115 2 kbps Enter System Settings see Section 4 5 38 4 kbps RS232 Baud Rate 19 2 kbps Down Enter System Settings To edit this line DM100 Unit Name see Section 4 4 Down System Settings 15 min Auto power off 10 min Power Management setting 5 min Down Disabled System Settings 30 min LCD Backlight Down Backlight always Enabled System Settings on if enabled Disabled MERE A I S Note Backlight can o as jus Down System Set Firmware U also be toggled on and off by pressing Shift F then Power button Contrast Adjust battery operation only l l l l Use Up Down Firmware Upgrade ENTER Yes ESC No Ready to Load lt ESC gt to Abort tings pgrade
13. KK OK KK kK kK KK Does Not Exist N A Px Copyright Px Orig Bitstrm A typical example is shown for the Dolby E Copyright display The Original Bitstream program parameters display the same second line P2 Copyright No No Yes N A Dolby DM100 Users Manual Px Extnd Bitstrm A typical example is shown for the Extended Bitstream metadata display Other possibilities are also shown Dolby E Preferred Downmix Status Dolby E Downmix Level Status Dolby E Surround EX Status Dolby E Headphone Mode Dolby E A D Converter Type Extnd Bitstrm ENTER to view Operation Status Mode P2 Pref Dwnmx Lt Rt Not Indicated Lt Rt Lo Ro Px Pref Dwnmx KKKKKKKKKKKKKKKKK Does Not Exist N A 1 414 3 0 dB 1 189 1 5 dB 1 000 0 0 dB 0 841 1 5 dB 0 707 3 0 dB 0 595 4 6 dB 0 500 6 0 dB 0 999 dB Not Active Does Not Exist N A Px Dolby Srnd EX Not Indicated Down Not Srnd EX Px Dolby H Mode Dolby Srnd EX KKKKKKKKKKKKKKKK Down Not Active Does Not Exist Px A D Conv Type N A Not Indicated Disabled Enabled KKKKKKKKKKKKKKKK N A Standard HDCD Does Not Exist N A 3 12 Dolby DM100 User s Manual Operation Status Mode Px
14. New bitstreams may be uploaded to the DM100 using the Upload Bitstream function To load and store new streams connect a Windows PC to the DM100 using the supplied cable The baud rate is fixed at 115 2 kbps Activate the Upload Bitstream function on the DM100 and follow the prompts on the PC software supplied During the upload the DM100 display will show progress When complete reboot using the Esc key 4 4 Dolby DM100 Users Manual Generator Latency Test A V Freq Drift Pass Through PCM DE stream names DD stream names Sine Square Freg Sweep Silence Pink Noise white Noise 1000 Hz 20 Hz 16000 Hz Up Down buttons step frequency Shift toggles between 10 Hz and 1 kHz steps Enter selects DM100 Main Setup Gen Control Enter Gen Control 1 to 10 seconds default is 5 sec Use Up Down buttons 60 to 0 dBFS default 20 dBFS Use Up Down buttons Both Left Right 2 to 10 seconds default is 2 sec Line 14 Sets the video line number where the Dolby E data begins Refer to SMPTE 170M and ITU RBT 470 6 for video line structure The correct line number is 14 for 29 97 fps NTSC signals and 11 for 25 fps PAL signals Channel 1 Channel 2 Channel 1 2 Ready to Load lt ESC gt to Abort Operation Setup Mode Enter Output Mod
15. Non Audio N A Locked Unlocked N A Not Indicated 48 kHz 44 1 kHz 32 kHz N A Not Indicated 2 Channel 1 Channel Primary Sec Stereo User Defined 5 User Defined 6 Reserved 7 15 N A 20 bit 24 bit 20 bit Aux User Defined Reserved 4 7 N A A bit 4 of byte 22 ABCD B bit 5 of byte 22 N A C bit 6 of byte 22 D bit 7 of byte 22 Emphasis Down Freq Mode Down Sample Freg Down Channel Mode Down User Bits Down Aux Bits Down liability AES3 Mode Down Audio Mode Down Pro Chan Status Enter to View Down Continued on next page None 192 bit Block Reserved AES18 User Defined Reserved 4 15 N A Not Indicated 23 19 bits 22 18 bits 21 17 bits 20 16 bits 24 20 bits Reserved 6 7 N A Not a Ref Signal Grade 1 Grade 2 Reserved N A 3 24 Dolby DM100 Users Manual Yes No N A 2ch No Pre Emph Reserved 1 3 2ch 50 15us Reserved 5 7 N A XX represents the XX category code number N A Operation Status Mode Continued from previous page Down Cons Chan Status in hex with leading zeroes The category code is ex
16. Operation Setup Mode DM100 Main Setup AES3 Output Professional AES3 Output Consumer Pass Through AES3 Mode Down Audio AES3 Output Non Audio Audio Mode Pass Through AES3 Output Pro Chan Status Pro Chan Status Emphasis Down Pro Chan Status Freq Mode Down Pro Chan Status Sample Freq AES3 Output Cons Chan Status Down Cons Chan Status Copyright Down Cons Chan Status Additional Info Down Cons Chan Status Sample Freq AES3 Output 0 Validity Bit 1 Down Pass Through AES3 Output Pass Through All Pass Through All ENTER Yes ESC No 4 7 Dolby DM100 User s Manual Operation Setup Mode 4 4 User Presets Up to four user presets can be saved named and recalled These presets contain a copy of the DM100 setup information DM100 Main Setup User Presets 01 lt name 1 gt rn Enter User Presets Ee SS Recall Preset lt name 04 lt name 4 gt After selecting preset 01 Save Preset Enter number using the 02 Up Down buttons 03 press Enter to 04 move to the editing screen eg xx is the preset number Press the Enter xx Name Up or Down buttons to move name through the alphabet Press Enter to select the character and move to next position Use Esc to make any corrections
17. automatically if the string is greater than 16 characters Px Dialogue Lev A typical example is shown for the Dolby E Dialogue Normalization display P2 Dialogue Lev 27 dB EETL 1 dB 2 dB 3 dB 31 dB N A Dolby DM100 User s Manual Operation Status Mode Px Channel Mode A typical example is shown for the Dolby E Channel Mode display P2 Channel Mode 2 0 Stereo deed 1 0 Mono 2 0 Stereo 3 0 27 SPAN 22 3 2 N A Px LFE Channel P2 LFE Channel Disabled Disabled Enabled N A Px Bitstrm Mode A typical example is shown for the Dolby E Bitstream Mode display P2 Bitstrm Mode Main Complete Main Complete Main M amp E Assc Visual Imp Assc Hear Imp Assc Dialogue Assc Commentary Assc Emergency Assc Voice Over Main Sv Karaoke N A 3 8 Dolby DM100 Users Manual Px Line Mode Pro Px RF Mode Pro The Dolby E Line Mode and RF Mode Profile program parameters display the same second line display Operation Status Mode A typical example is shown for the RF Mode Profile display P2 RF Mode Pro Music Standard If actual dynamic range control data is present xx dB Press the Enter button to toggle between a numeric display and a bar graph level display lt gt NEE EEN RF 48 dB 0 148 dB Line
18. be displayed Dolby Digital B 2L 448kbps 1 1 L means the LFE 56kbps 1 0 enabled bit is set in the 64kbps 2 0 bitstream 80kbps 3 0 96kbps 2 1 112kbps 3 1 128kbps 2 2 160kbps 3 2 192kbps 3 0L 224kbps 2 1L 256kbps 3 1L 320kbps 2 2L 384kbps 3 2L 448kbps 512kbps 576kbps 640kbps PCM When the incoming bitstream is PCM and the DM100 has locked to it the following information will be displayed PCM B 44 1 kHz 48 kHz 44 1 kHz 32 kHz Unknown Rate 3 3 Dolby DM100 User s Manual Operation Status Mode NULL Data When the incoming bitstream is Null data as defined in the IEC 61937 or SMPTE 337M standards the following screen is displayed Pause Data When the incoming bitstream is Pause data as defined in the IEC 61937 standard the following screen is displayed PAUSE data When the data type of the incoming bitstream is not recognized as one of the preceeding types the following screen is displayed Data Type X Data Type X 3 4 Operation Status Mode Dolby DM100 Users Manual 3 2 The Status Menus From the top level main Status display described above you can step through the status menus by pressing the Up or Down button Each menu below the top main Status display is described in the following manual sections Down Dolby D
19. ee ED eb se Sek ds 2 1 Battery Installation s s0soneeesoeeeeeeeeseeseesee 2 1 Power Button 2 2 Battery Low LED 2 2 Auto Power Off 2 2 Rear Belt Clip Stand ee ee se ek Re ee 2 3 eu CEET 2 4 Dolby Digital 2 4 Dolby Eau an 2 4 IN EC E 2 4 Other EA EE N ten 2 4 Video rege EE 2 4 EILER ernennen 2 5 Headphone Output sssssnsneeeosenseee esseen 2 5 Speaker Output 2 5 Eeer e asie a EE RE RE 2 6 Ouick Start NE SES EN N ED Se ee 2 7 Making Your First Reading 2 7 Generating a Dutetream 2 7 Advanced Features ssseseseeseeseeseseeeesreseserssseeese 2 8 Measuring the Latency of Equipment 2 8 Measuring Audio Video Frequency Drift 2 8 Dolby DM100 Users Manual Chapter 3 Operation Status Mode 3 1 Main Status Screen iese see ee ee RA Ge ee ee 3 1 el ARE EE EE RE 3 2 Dolby Deal 3 3 POEM ege a ate oe eisen 3 3 NULL Data ei Ee EER hele 3 4 Pause Data sesse eg ink 3 4 Data Type Ki ERGE SEE ee Ee ge EER Re 3 4 3 2 The Status Menus sesseeesseeeessseessessesrreesrsressesss 3 5 3 2 1 Dolby E Metadata Input Men 3 6 Px Prog Des ste es these Ee Ee See ets 3 7 Px Dialogue Lev ee ee see ek Ge ee 3 7 Px Channel Mode 3 8 Px LFE Channel 3 8 Px Bitstrm Mode 3 8 Px Line Mode Pro 3 9 Px RF Mode Dro 3 9 Px RF Ov Protect iese esse esse esse ee se ee se se 3 9 Px Center Dwnm esse esse esse esse ee se ee se Ge 3 10 Px Sind Dewmmzs 3 10 Px Dolby Sidi sss
20. fps Timecode xx Dly 00 00 00 00 N A Timecode Timestamp data burst delay if present indicates the encode latency referenced to A V sync A positive number indicates an advance in milliseconds from the reference while a negative number indicates a delay Refer to SMPTE 339M for further information Dolby Digital Timecode data as derived from the timestamp of the stream currently being decoded if present Encoding latency can be conveyed to a downstream MPEG broadcast encoder with a Dolby Digital stream Semicolons are used to separate the timecode fields when receiving Drop Frame timecode Dolby E Timecode data as carried within the Dolby E bitstream derived from the metadata RR RR ERA N A The display shown above occurs under any of the following conditions e A Dolby E or Dolby Digital bitstream is not being decoded this mcludes selecting the PCM portion of a 16 bit Dolby Digital PCM stream e The current Dolby E timecode field is set to invalid or the Dolby Digital bitstream does not contain timecode 3 29 Dolby DM100 User s Manual Operation Status Mode 3 2 8 Error Stats Menu After pressing Enter to select the Error Statistics menu press the Down or Up button to select the desired error screen A typical example screen is shown The first screen displays any current error condition that prevents correct operation of the DM100 Subsequent screens display a historical count
21. internal settings to quickly allow monitoring of input bitstreams Does not change output mode Gen Turns on generator and displays bitstream select menu pressing again generates next bitstream in list Setup Switches display to top level setup menu use to set DM100 options Enter Moves down one level in current menu item or selects currently displayed option also used to switch bottom line of LCD between graphic or numeric display from certain status menu items Dolby DM100 User s Manual Dolby Laboratories Inc Corporate Headquarters Dolby Laboratories Inc 100 Potrero Avenue San Francisco CA 94103 4813 Telephone 415 558 0200 Fax 415 863 1373 www dolby com European Headquarters Dolby Laboratories Inc Wootton Bassett Wiltshire SN4 8QJ England Telephone 44 1793 842100 Fax 44 1793 842101 Dolby and the double D symbol are registered trademarks of Dolby Laboratories Surround EX is a trademark of Dolby Laboratories Toslink is a trademark of Toshiba Corporation Windows is a registered trademark of Microsoft Corporation All other trademarks remain the property of their respective owners 2003 Dolby Laboratories Inc All rights reserved S03 13416 14616 Issue 2 Part No 91751 Dolby DM100 Users Manual Table of Contents Chapter 1 Introduction 1 1 About the DM100 coc ee ee ee ee ee ee ee 1 1 Chapter 2 Getting Started 2 2 2 3 2 4 2 5 2 6 2 7 Power een get ae ee
22. is set from the Setup menu under System Settings Power Management See Section 4 6 for more information 2 2 Dolby DM100 User s Manual Getting Started 2 2 External DC Power Supply When powered from the external power supply the Power Management setting is ignored and the unit remains switched on The LCD backlight and keypad backlights are also enabled overriding the LCD Backlight setting See Section 4 6 for more information Rear Belt Clip Stand The pull out clip on the rear of the DM100 can be used as a handy belt clip or a stand Raise the clip by following these two steps 1 Lift to release 2 Pull up 2 3 Dolby DM100 User s Manual Getting Started 2 3 Inputs Each input connector XLR BNC or Toslink is active when specifically selected or if the input selection is set to autodetect the first input with a valid AES3 signal becomes the active input See Section 4 5 for setting the input select function See the specifications in Section 5 4 for details on supported sample rates impedances and more The digital input format can be Dolby Digital Dolby E or PCM Dolby Digital The DM100 accepts 16 and 32 bit Dolby Digital bitstreams It also accepts AES3 data that contains multiple Dolby Digital bitstreams i e one 16 bit mode bitstream in each AES3 channel Dolby E The DM100 accepts 16 20 and 24 bit Dolby E bitstreams at NTSC 29 97 fps PAL 25 fps 23 98 fps 24 f
23. 97 fps Ex u Dwnn N A e Px Dolby Srnd DE Position Down Line 14 Px Mixing Level Down Px Room Type Displays the video line number Down where the Dolby E data begins e Px Copyright Refer to SMPTE 170M and ITU R er SE BT 470 6 for video line structure Px Orig Bitstrm Dolby E input not present or DM100 blank Down decode format is not Dolby E Px Extnd Bitstrm Video reference not present N A Down Video reference not equal to Dolby E A N Px DC Filter frame rate Down During an audio follow video switch the Dolby E frame is in Px Lowpass Filt danger of corruption if the line value displayed in this status Down screen is less than 11 or greater than 30 for 29 97 fps NTSC Px LFE Filter or less than 7 or greater than 35 for 25 fps PAL Down Px Srnd 3dB Attn Down Px Srnd Ph Shift Px represents the selected program number where x is a Down number between and 8 Valid program numbers depend on the Px Begin Gain Dolby E program configuration For example 5 1 2 is two Down programs therefore only Pl and P2 are valid Px End Gain Each metadata program parameter selection is described in the following sections 3 6 Dolby DM100 User s Manual Operation Status Mode Px Prog Desc Dolby E program description display Px Prog Desc Description text The DM100 has a 32 character buffer for each program which stores the first characters in the description text field for that program The display scrolls through the text
24. RA 4 1 4 1 Monitor Control 4 2 4 2 Gen CONTO iss EES ea 4 4 43 AES3 Output s sesneeseseseossssosessessesososessesesressseseeses 4 6 4 4 User Presets N ED ek NEE SG ER Ge Ee shat 4 8 4 5 VO Control ses ner meinen 4 9 4 6 System Settings ee ee ee ee Re RA RA RA GRA 4 10 Chapter 5 Reference Information 5 1 Data Transfer 5 1 Test Bitstream Loading esse sesse ee 5 1 Data Logging esse ss ee ee ee ee 5 1 Firmware Upgrade 5 2 Data Transfer Error Messages 5 2 52 Unit Keser EER Ee SEE Ee 5 3 Restore Default Settings iese see 5 3 Hardware Reset 5 3 5 3 Connector Pinout Information 5 4 5 3 1 RS 232 Serial Pott 5 4 5 3 2 XLR Connectors ies ee ee ee 5 4 5 3 3 Headphone Connector 5 4 5 4 DM100 SpecificatHOnS ese se ee ee ee RA RA 5 5 5 5 System Block Diagram sesse esse see ee ee Re Re 5 2 Vi 1 1 Dolby DM100 Users Manual Chapter 1 Introduction About the DM100 The Dolby DM100 is a hand held diagnostic tool that can monitor or generate Dolby Digital Dolby E and PCM bitstreams The unit allows audio systems integrators and service engineers to quickly test the integrity and composition of these signals throughout a facility The DM100 is intended for use in broadcast cable DBS and postproduction facilities as well as DVD mastering and home theater installation The DM100 accepts input signals via XLR BNC and Toslink connectors The unit identif
25. ays the version of the firmware currently installed in your DM100 Firmware Version 2 00 9 Pressing Down Esc or Status returns the display to the top level Main Status screen Dolby DM100 Users Manual Chapter 4 Operation Setup Mode Introduction Pressing Setup switches the DM100 into Setup mode Use this function to configure your DM100 All setup settings are saved when the unit is turned off The settings shown in bold are the factory defaults The setup menu choices are DM100 Main Setup Monitor Control Monitor Control Gen Control AES3 Output Down Down O Control System Settings The following pages show the setup selections available for each of the menu choices Dolby DM100 User s Manual Operation Setup Mode 4 1 Monitor Control The Monitor Control menu contains all of the functions that control the audio output of the DM100 After pressing Enter to select the Monitor Control menu press the Down or Up button to choose the desired setting Decode Format chooses the type of bitstream the DM100 will decode This is normally set to Autodetect however it is possible to force the DM100 to decode only one stream type if required Output Ch Map chooses which audio channels or downmix Lt Rt or Lo Ro are output from the headphone or speaker Dolby E Prog Sel selects one of the available programs in a Dolby E stream for monitoring DE Dialogue L
26. cannot see this information press Status then use Enter Esc and the Up Down buttons to navigate through the status menus to view information about the incoming signal See Section 3 2 for additional information Adjust the audio level with the dedicated Volume buttons Generating a Bitstream 1 Press Gen once This turns the generator on and outputs a PCM test signal 2 To select other test streams continue to press Gen Different clock sources can be used for the generator these can be selected in the Gen Clock Source menu Setup I O Control Gen Clock Source See Section 4 5 for more information To read the current status of the generator press Status and navigate using the Down button until Generator Enter to View is displayed Press Enter to see the current settings See Section 3 2 5 for more information You can even connect the output of the DM100 to the input Doing this allows you to listen to the test stream and view all of the streams settings Dolby DM100 User s Manual Getting Started 2 7 Advanced Features Measuring the Latency of Equipment The DM100 can be used to measure the latency of other audio equipment At user defined intervals the DM100 generates a short burst of white noise then measures the time taken for the signal to return Set the DM 100 to measure latency by following these steps 1 Gotothe Gen Control Output Mode setup menu and select Latency Te
27. ce PCM bitstream OR Pass Through mode Opu AANDE OE He S EE xxxx x samples DM100 in samples or ms OR Press enter to switch The unit is in Measured Latency between samples and time Latency Test mode XXX X_ MS time OR No Input No AES3 input Noise burst not received The unit is in A V Freq Drift N A within 1 5 times the max A V Freq Drift mode latency setting XXXxX Samples The difference in clock rate between the AES input and the Video reference input A continuous counter indicates the drift of the AES input with respect to the video A positive number indicates the AES input signal is faster than the video reference Press Enter to reset the counter No Input No AES3 input No Vi deo No video input Wrong Video Rate Video present but not at 29 97 or 25 fps N A Waiting to make a reading See Section 4 2 for selecting stream and waveform names and frequencies 3 27 Dolby DM100 User s Manual Operation Status Mode 3 2 6 Video Reference Status Display A typical example is shown for the Video Reference input status Video Ref 29 29 fps display 25 fps F Rate NEE fps No video input No Input Video input present but invalid vale nee Error 3 28 Dolby DM100 User s Manual Operation Status Mode 3 2 7 Timecode Status Display Timecode frame rate 23 24 25 29 or 30 23 23 98 fps 29 29 97
28. djust the speaker volume Note When listening to Dolby Digital bitstreams on the speaker output RF Mode compression is always applied regardless of the DD Compression setting in the Monitor Control Setup menu See Section 4 1 for more information 2 5 Dolby DM100 User s Manual Getting Started 2 5 Hookup Figure 2 1 shows the locations for connecting components to the DM100 RCAF to BNC M Part Number 70218 Ref Video In BNC F to RCA M Part Number 70217 Toslink Cable Power Adapter Part Numbers 54065 USA 54066 UK 54067 Europe 54068 Australia Figure 2 1 Connections Note References to the front panel buttons are shown using brackets throughout this manual e g Status References to multiple button combinations mean sequences not simultaneous button presses Press the first button release and then press the next button Dolby DM100 User s Manual Getting Started 2 6 Quick Start The DM100 is designed to be easy and intuitive to use Follow these simple procedures to begin taking your first readings and generating your first test streams Making Your First Reading 1 Turn on the unit by pressing Power 2 Connect the input signal to the appropriate connector 3 Press Mon This resets all the internal monitoring setup functions to the defaults The LEDs should display the signal type received and the display shows information about the incoming signal If you
29. e When generating PCM When generating PCM Sine or Square waveform Control Frequency When generating PCM Freq Sweep Waveforms When generating PCM except silence When generating PCM When Output mode is Latency Test When generating Dolby E streams When generating Dolby Digital streams Gen Control Upload Bitstream GE e Bitstream ENTER Yes ESC No 4 5 Dolby DM100 User s Manual Operation Setup Mode 4 3 AES3 Output The AES3 Output menu allows the user to control the value of the AES3 status bits present on the output ofthe DM100 The output can be set to pass through each parameter from the input or from the generator or each parameter can be manually set to a desired value When a value has been changed the current decode LED will flash long on short off to indicate this change To reset all of the parameters use the Pass Through All function 4 6 Dolby DM100 Users Manual Not Indicated Reserved 1 3 No Emphasis Reserved 5 50 15 us Emph J 17 Emph Pass Through Locked Unlocked Pass Through Not Indicated 48 kHz 44 1 kHz 32 kHz Pass Through Pass Through No Yes 2ch No Pre Emph Reserved 1 3 2ch 50 15us Reserved 5 7 Pass Through Pass Through 32 kHz 44 1 kHz 48 kHz
30. ereiiisreeoitiiss 3 10 Px Mixing Level esse ae Re Re ee 3 11 PROM Typen 3 11 Px Copyright EE GE EG Ee Es Ee eg Ee SE ed 3 11 Px Orig Bitstrm ee ee ee ee RA RA RA 3 11 Px Extnd Btstrm 3 12 PX DC Filter eee une en nee 3 13 Px Lowpass Ft 3 13 PX EFE Filters iis 2 a Ras 3 13 Px Srnd 3dB Am 3 13 Px Stnd PH Shifts EEN 3 13 Px Begin GAM iese see e 3 13 Px End Galien ee see eek den 3 13 Dolby DM100 Users Manual 3 2 2 Dolby Digital Metadata Input Menu 3 14 DD Dialogue Ley 3 15 DD Channel Mode 3 15 DD LFE Channel 3 15 DD Data Rate isi astra 3 16 DD Bitstrm Mode 3 16 DD Line Mode Pro 3 17 DD RF Mode Pro 3 17 DD Center Dwnmx iese sea ee Re 3 17 DD Srnd Dwnmx sees see sea RA RA ER EE 3 18 DD Dolby Srnd ee RA RA ER EE 3 18 DD Mixing Level 3 18 DD Room Type ssssessssessesssesssssseesseessee 3 19 DD Copyright 3 19 DD Orig BitSEM ees see ea RA RA ER EE 3 19 DD Extnd Bitstrm esse sees sea ee oe Ge RE 3 20 DD Dual Mono MD nennen 3 21 DD Re 3 22 DD Sample Rate 3 22 DD Bitstream ID 3 22 DD S team EE RS ee se ee 3 23 3 23 AES3 Status Menu 3 24 3 2 4 Input Level Menu 3 26 3 2 5 Generator Status Display 3 27 3 2 6 Video Reference Status Display 3 28 3 2 7 Timecode Status Display 3 29 3 2 8 Error Stats Men 3 30 3 2 9 DM100 Firmware Version 3 31 Dolby DM100 Users Manual Chapter 4 Operation Setup Mode Introduction niiret iieiaei RA
31. ev applies the metadata parameter Dialogue Level or dialnorm to the audio output ofa Dolby E stream DD Stream Select and AES3 Ch Select choose which signal from a multiplexed Dolby Digital bitstream is decoded DD Compression applies Dolby Digital dynamic range control data to the audio output RF is the heaviest compression and Custom is the lightest DD compression can be useful when listening in a noisy environment When listening through the speaker this setting has no effect and RF Mode is always used Headphone Mode sets mono or stereo mode for the headphones Mono L R 2 4 2 Dolby DM100 User s Manual Operation Setup Mode Custom disables dynamic range compression except when listening to a downmix Enter DM100 Main Setup Monitor Control Autodetect Enter onitor Control Dolby g Decode Format Dolby Digital PCM Enter L Lo R Ro L Lt R Rt Down L L R R onitor Control L C_R C Dolby E Prog Sel L Ls R Rs Down L LFE R LFE onitor Control Program 1 DE Dialogue Lev Program 2 8 Down onitor Control Enabled DD Stream Select Disabled Down Autodetect onl ns a Stream 0 7 AES3 Ch Select Down Autodetect onitor Control Channel 1 DD Compression Channel 2 Down Channel 1 2 onitor Control Headphone Mode Line Mode RF Mode Custom Ste
32. ies the format of the input signal and activates the appropriate built in decoder The decoded analog signal sent to a standard 1 8 inch stereo headphone jack can be switched to monitor any two decoded channels while a small built in speaker can monitor the sum of any channel pair A front panel LCD displays Dolby Digital and Dolby E metadata information Six front panel LEDs indicate critical bitstream and system status information A set of Dolby Digital Dolby E and PCM test bitstreams is stored in internal nonvolatile RAM and can be changed in the field via software download The selected test bitstream is produced simultaneously on all output connectors The unit can receive and decode an input signal while simultaneously generating a test bitstream The DM100 also features a pass through mode that allows modification of the input signal s AES channel status bits before passing the signal to the output connectors The input signal can be monitored simultaneously The DM 100 also includes system level tests such as latency measurements and the ability to check the clock synchronization between audio and video signals Dolby DM100 Users Manual 2 1 Chapter 2 Getting Started Power The DM100 is powered by four standard AA 1 5 V batteries or from an external 6V 800 mA DC power supply via the power input connector The internal batteries are disconnected when the external DC power supply is used Battery Installation
33. iew is displayed Press Enter to read the measured frequency drift see Section 3 2 5 The display indicates frequency difference in AES samples a positive number indicates the AES input signal is faster than the video reference Therefore if the two signals are locked the display will read 0 samples Pressing Enter resets the counter Modifying the Pass Through Output Signal The DM100 can be used to repair improperly authored audio streams When in Pass Through mode the DM100 can modify channel status bits in the first and third bytes of the AES3 signal In addition the output audio channels can be skewed or swapped to correct improper channel alignment see Section 4 5 2 9 Dolby DM100 Users Manual Chapter 3 Operation Status Mode After power on the DM100 defaults to Status mode with the top level main status screen displayed Status mode is used for displaying monitoring and analyzing the input bitstream Note References to the front panel buttons are shown using brackets throughout this manual e g Status References to multiple button combinations mean sequences not simultaneous button presses Press the first button release and then press the next button Main Status Screen The main status screen is the top level of the status menu tree It displays one of the following possible combinations of information The display shown below gives a typical example Dolby Digital B 3 2L
34. igital MD ENTER to View Down AES3 Status ENTER to View Down Input Level ENTER to View Down Generator ENTER to View Scroll with the Up Down buttons Video Ref 29 97 fps Timecode 29 Dly 00 00 00 00 N A Firmware Version 2 0 0 0 Top level Status display A typical display is shown Dolby E metadata menu Dolby Digital metadata menu AES3 status menu Input level menu Bitstream generator status display Video reference display Timecode delay display Error status menu DM100 firmware version 3 5 Dolby DM100 User s Manual Operation Status Mode 3 2 1 Dolby E Metadata Input Menu After pressing Enter to view this menu press the Down or Up button to select the submenu options you wish to display DE Prog Config Down Px Prog Desc Down Dolby E MD ENTER to View Px Dialogue Lev Down Px Channel Mode Down Px LFE Channel Down Px Bitstrm Mode See page 3 2 for the list of possible program configurations displayed Dolby E Prog 2 8 Down 23 98 fps depending on Dolby E Px Line Mode Pro 24 fps program configuration Down 25 fps PAL Px RF Mode Pro 29 97 fps NTSC Bit Depth Down 30 fps 20 or 24Bit Px Protect 20 fps Px Center Dwnmx 5 E Frame Rate Down KKKKKKKKKKKKKKKK 29
35. lby Srnd A typical example is shown for the Dolby Digital Dolby Surround Mode display DD Dolby Srnd Not Indicated Not Indicated Not Dolby Srnd Dolby Srnd KKKKKKKKKK KK KKK Not Active N A DD Mixing Level A typical example is shown for the Dolby Digital Mixing Level DD Mixing Level 80 dB status display 80 dB 81 dB 82 dB 111 dB Does Not Exist N A 3 18 Dolby DM100 User s Manual Operation Status Mode DD Room Type A typical example is shown for the Dolby Digital Room Type display DD Room Type Large Not Indicated Large Small kk kk OK RR OR RR Does Not Exist N A DD Copyright DD Orig Bitstrm A typical example is shown for the Dolby Copyright status display The Original Bitstream program parameters display the same second line DD Copyright Yes Dolby DM100 User s Manual Operation Status Mode DD Extnd Bitstrm A typical example is shown for the Extended Bitstream information display Other possibilities are shown Dolby Digital Preferred Downmix Status Dolby Digital Downmix Level Status Dolby Digital Surround EX Status Dolby Digital Headphone Mode Dolby Digital A D Converter Type Px Extnd Bitstrm ENTER to view Not Indicated LtRt LoRo KKKKKKKKKKKKKKKKK Does Not Exist N A
36. n be used for long term data recording Any standard terminal program may be used on the computer The logged data is in this order time parameter and value The logged time is the elapsed time since the DM100 was last switched on A fixed set of parameters is always logged input format errors etc One additional parameter may be logged by navigating to the status screen that contains that parameter 5 1 Dolby DM100 User s Manual Reference Information First set the baud rate you wish to use via the System Settings menu Press the Setup button then use the Down button to step to the System Settings menu Press Enter and select the desired data rate with the Up Down buttons Press Enter to save Next to initiate logging Press the Setup button again then use the Down button to step to the I O Control menu Press Enter then use the Down button to step to Logging Output Press Enter then use the Down button to select Enable Press Enter to start logging via the RS 232 connection to your terminal program See Sections 4 5 and 4 6 Firmware Upgrade With the DM100 powered off press the Power button then hold down the Setup button The DM100 will display the Firmware Upgrade screen The data transfer operates at a fixed data rate of 115 2 kbps If an error occurs during the upgrade the Error LED illuminates an error message is displayed and the data transfer halts Pressing the Esc button exits
37. ode display Main Complete MainM amp E Assc Visual Imp Assc Dialogue Assc Commentary Assc Emergency Assc Voice Over Main Sv Karaoke N A N A indicates that a Dolby Digital input is not present or the DM100 decode format is not Dolby Digital 3 16 Dolby DM100 User s Manual Operation Status Mode DD Line Mode Pro DD RF Mode Pro The Dolby Digital Line Mode and RF Mode Profile parameters use the same display style A typical example is shown for the RF Mode Profile display DD RF Mode Pro xx dB If compre or dynrnge 0 the level displayed is 0 If compre or dynrnge 1 The level displayed is the decoded compre or dynrnge value from the metadata Press Enter to toggle between a numeric display and a bar graph level display _ EEE EEE Rf 48 dB 0 48 dB Line 24 dB 0 24 dB DD Center Dwnmx A typical example is shown for the Dolby Digital Center Downmix display DD Center Dwnmx 0 707 3 0 dB 0 707 3 0 dB 0 596 4 5 dB 0 500 6 0 dB ROK Ok RR OK KOK RR RR Not Active N A 3 17 Dolby DM100 User s Manual Operation Status Mode DD Srnd Dwnmx A typical example is shown for the Dolby Digital Surround Downmix display DD Srnd Dwnmx 0 707 3 0 dB 0 707 3 0 dB 0 500 6 0 dB 0 999 dB KKKKKKK KKK KKK KK Not Active N A DD Do
38. of errors Error counts over 99 display as 99 Press Enter to reset a displayed error count to 00 Error Stats ENTER to view Error Cond No Error Error Cond No Error The channel mode in Dolby E Invalid Ch Mode p has 2 Down input is invalid Selected Dolby E program does Invalid Program Dolby E Errors not exist CRC xx Selected Decode Format not Invalid Format Down present in input Dolby D Errors Selected AES Channel does not Invalid AES Ch CRC xx contain a valid Dolby Digital When receiving a Dow stream bitstream this screen shows the number of Selected Stream is not present Invalid Stream frames where the SMPTE or does not contain a valid 337M Pa word does not Dolby Digital stream appear in the Left channel Selected Output Channel for Invld Output Ch Parity Code speaker headphones is not Confidence present in the input signal Selected generator clock source Invalid Gen Clk Professional E53 Errors 2 IS missing or bad or in VO Channel Status CRC CCRC dd Drift mode the video input is missing or not at 29 97 or 25 fps The input is not set to No Input Autodetect and the selected input has no valid AES signal or there is no input when in A V Freg Drift or Latency Test modes 3 30 Dolby DM100 User s Manual Operation Status Mode 3 2 9 DM100 Firmware Version This last Status menu item displ
39. ps and 30 fps rates PCM If the input signal does not contain a header indicating that a pre encoded bitstream is being received the DM100 assumes the input signal is PCM audio Other The DM100 also accepts non audio data over AES3 In this case the LCD indicates that data is being received and the audio output mutes Video The unit can use an analog composite NTSC or PAL black burst reference video signal for signal generation via the Ref Video RCA connector The input is internally terminated at 75 2 4 Dolby DM100 User s Manual Getting Started 2 4 Outputs The XLR and BNC output connectors are always active The Toslink connector is enabled when it is selected The digital output signal can be Pass through Dolby Digital Dolby E or PCM The output clock is locked to the digital input Or An internally generated Dolby Digital Dolby E or PCM test bitstream The output clock can be locked to an internal 48 kHz clock a digital input signal or to 48 kHz derived from the video reference input See Section 4 5 for more information Headphone Output The headphone output is used to monitor the decoded Dolby Digital Dolby E or PCM signal Front panel buttons adjust the headphone volume Speaker Output The speaker output is used to monitor the decoded Dolby Digital Dolby E or PCM signal when headphones are not being used The signal is a mono version of the headphone output Front panel buttons a
40. reo Mono Dolby DM100 User s Manual Operation Setup Mode 4 2 Gen Control The Gen Control menu contains all of the settings for the bitstream generator After pressing Enter to select the Generator Control menu press the Down or Up button to choose the desired setting Output Mode switches the generator on or off either passing through the input signal to the output connectors or connecting the generated signal to the output connectors It also sets the unit to latency measurement or A V frequency drift measurement modes Gen Stream Sel selects the generator output stream from a list of Dolby E Dolby Digital and PCM streams PCM Waveform contains the settings for the PCM generator signal allowing sine square sweep and pink or white noise signals to be created DE Offset allows the Dolby E bitstream to be placed a number of lines away from the video sync point a valid video reference input is needed for this function DD Ch Mode chooses where to place a Dolby Digital stream in the output AES3 stream Channel 1 2 is the usual setting When measuring the latency of external equipment the Noise Burst Rate function sets the frequency of the short noise bursts See Section 2 7 for more information The larger the setting the less frequently the noise bursts are generated and the larger the latencies that may be measured However larger settings increase the time taken to make each measurement
41. rig Bitstrm DD DD DD DD DD Down Extnd Bitstrm Down Dual Mono MD Down Format Down Sample Rate Down Bitstream ID Down DD Stream Each Dolby Digital metadata parameter display is described in the following manual sections 3 14 Dolby DM100 User s Manual Operation Status Mode DD Dialogue Lev A typical example is shown for the Dolby Digital Dialogue Normalization Status display DD Dialogue Lev 27 dB KOK KKK RK KK KK 1 dB 2 dB 3 dB 31 dB N A DD Channel Mode A typical example is shown for the Dolby Digital Channel Mode DD Channel Mode 2 0 Stereo display 1 1 1 0 Mono 2 0 Stereo 3 0 2 1 ad 2 2 3 2 N A DD LFE Channel A typical example is shown for the Dolby Digital LFE Status display DD LFE Channel Disabled Disabled Enabled N A Dolby DM100 User s Manual Operation Status Mode DD Data Rate A typical example is shown for the Dolby Digital Data Rate DD Data Rate 448 kbps display 56 kbps 64 kbps 80 kbps 96 kbps 112 ps 128 ps 160 ps 192 ps 224 ps 256 ps 320 ps 384 ps 448 ps 512 ps 576 ps 640 ps N A Ee O iere 00 0 0 0 00 0 0 0 0 DD Bitstrm Mode A typical example is shown for the Dolby Digital Bitstream DD Bitstrm Mode Main Complete M
42. st see Section 4 2 2 Connect the Digital Out from the DM 100 to the equipment to be measured 3 Connect the output of the equipment to be measured to the DM100 s Digital Input Different clock sources used for the generator can be set in the I O Control Gen Clock Source setup menu see Section 4 5 The time interval between the noise bursts can be set in the Gen Control Noise Burst Rate setup menu see Section 4 2 To read the measured latency press Status and navigate using the Down button until Generator ENTER to View is displayed Press Enter to display the measured latency in either AES samples or milliseconds see Section 3 2 5 Measuring Audio Video Frequency Drift The DM100 determines if an AES digital audio or reference signal is frequency locked to a video black burst reference signal The unit locks to the video reference then measures the frequency difference between the Digital In input and the video reference 2 8 Dolby DM100 User s Manual Getting Started Set the unit to measure frequency drift as follows 1 Go to the Gen Control Output Mode setup menu and select A V Freq Drift see Section 4 2 2 Connect a 29 97 or 25 fps video reference to DM100 s V Ref input 3 Connect the test AES signal to the DM100 s Digital In Read the measured frequency drift between the AES and video signals by pressing Status and then navigating using the Down button until Generator Enter to V
43. the upgrade mode if data is not being transferred or turns the unit off if a data transfer error occurs Data Transfer Error Messages FLASH PGM ERR XX Flash not blank at address YYYYYY hex Flash module AT ADDR YYYYYY error code given in XX hex IMAGE SIZE ERR Error in downloaded image size or address Too large for either RAM or flash image after programming PRODUCT ERR Product code in file s header is not DM100 FLASH MEM FULL No space left in flash memory when loading test bitstreams TOO MANY STREAMS There is a limit of 200 streams in the unit 5 2 Dolby DM100 User s Manual Reference Information 5 2 Unit Reset Restore Default Settings With the DM100 powered off press Power while holding down the Enter button The factory default settings are restored without changing your presets or stored test bitstreams Hardware Reset In the unlikely event that the restore procedure above does not work the unit can also be reset by inserting a pen point or paper clip into the RESET hole on the back ofthe DM100 The unit will reset and power off 5 3 Dolby DM100 Users Manual 5 3 5 3 1 5 3 2 5 3 3 Reference Information Connector Pinout Information RS 232 Serial Port Connection Description NC NC RX Asynchronous data out Ground TX Asynchronous data in NC lalalala Ee gt NC NC OGO 0 0 OO
44. tracted from byte 1 of the channel status 32 kHz 44 1 kHz 48 kHz Reserved 1 3 Reserved 5 11 Reserved 13 15 N A Not Indicated 16 24 bits Reserved 6 7 Not Indicated Reserved 14 15 N A Left Right N A xxxx samples N A Pa spacing can be used to help diagnose bitstream errors Correc values are Dolby Digital 1 536 samples Dolby E NTSC 1 601 2 samples Dolby E PAL 1 920 samples es ses N A Copyright Enter to View Down Down Additional Info Down Category Code Not Indicated 1 15 Down N A Source Number Down Not Indicated umber A left B right C O N A Level 2 k Accuracy Level 3 Level 1 Down Reserved N A Word Length Pa Alignment Down Pa Spacing Down Pc Value Down Pd Value 0 1 N A E HIA HA PA M AA H EG Active bits within the current PCM block of 1 536 samples are shown as solid at the center of each bar 3 25 SOMES TATUS Enter to View Down Validity Bit Down Bilt Aetiviey Down Bee Nes EER Dolby DM100 Users Manual 3 2 4 Input Level Menu Operation Status Mode Press Enter to display Input Level status The display combinations are shown below A typical example screen is shown
45. ustable into 600Q 1 8 inch standard stereo headphone jack Case ABS plastic handheld enclosure Dimensions and Weight 100 x 200 x 41 mm 4 x 7 9 x 1 6 inches Net 0 68 kg 1 5 Ib Environmental Conditions Operating 0 to 50 C 32 to 122 F 0 98 relative humidity non condensing Non operating 20 to 70 C 68 to 158 F Power Requirements External 6 VDC 800 mA or four internal 1 5 V AA batteries Typical battery life 10 hours continuous use Supplied Accessories User s manual Warranty card Carrying case Batteries External DC power adapter BNC F to RCA M adapter for video reference input RCA F to BNC M adapters for the two audio inputs RS 232 serial data cable Bitstream CD ROM Regulatory Notices North America This unit complies with the limits for a Class A digital device pursuant to Part 15 of the FCC rules and Industry Canada ICES 003 regulations Europe This unit complies with the requirements of EMC Directive 89 336 EEC Reference Information DM100 User s Manual Saa1 pue 197 jaued 1u014 i HIX J0SS9J014 JeNleoey i oNa jeu is uf CS UISO1L JSNIWSUBAL SaV UISO1L 80U81816H o piA UoNeiauaf 49019 JOY A System Block Diagram 5 5 5 6

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