JÃ¼nger Audio C8086 Manual - PDF - Aspen Media.

digital audio 

modular 

processing system 

C8000 

4/8 Channel & Surround Level Magic processor 

C8086 

features 

• 4Ch LevelMagic processor 

• ITU-BS.1770 based loudness control 

• 8Ch mode as upgrade option 

• 5.1 surround operation in 8Ch mode 

• downmix feature (Lo/Ro or Lt/Rt or mono) 

• downmix pre / post surround processor 

• independent 2Ch processor in surround mode 

• brick wall limiters -20 …. 0dBFS threshold 

• alternative input bank 

• automatic bit transparent mode for non audio signals 

• remote control via C8702 Frame Controller, GPI/O or 

http based API 

block diagram 

4Ch / 8CH mode 

Jünger Audio Studiotechnik GmbH 

Justus-von-Liebig-Strasse 7 

D -12489 Berlin 

Germany 

phone: +49-30-677721-0 

fax: +49-30-677721-46 

info@junger-audio.com 

www.junger-audio.com 

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Surround mode 

technical specifications 

AUDIO : 

audio data format : 

audio sample rate : 

latency : 

audio delay : 

audio processing : 

24 Bit, transparent for C-Bit and U-Bit according to AES3 

48 kHz synchronous to video-carrier 

2 ms processing delay 

0...240 ms 

LevelMagic 

Process control selectable between Level or Loudness 

Input gain –20dB … +20dB 

Operating Level -40dBFS … 0dBFS 

Loudness Target-40LKFS … 0LKFS 

Limiter Threshold-20.0dBFS … 0.0dBFS 

bit transparent mode for pairs of inputs 

GENERAL : 

backplane connector : ref. to DIN41612, 64pin, a+b, male 

power supply : +5V DC 

power consumption : approx. 1.000mA 

dimension : 

3RU, 4HP, 160mm depth 

temperature : 10°C … 40°C 

humidity : 

90%, non condensing 




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location of switches: 

DIP-switch settings 

Since this type of module has an electronic output routing facility, great care must be taken when 

installing or exchanging a module! 

NO LABEL: 

REMOTE 

BUS-EN: 

ON 

CAN address range is extended by +16 (counting from 0x10 to 0x1F) 

OFF 

CAN address is standard (counting from 0x0 to 0xF) see rotary encoder 

settings below 

must be ON 

ON 

Connects the outputs to the C8k audio buses on power up automatically. 

The output configuration will be taken from the NV (non volatile) memory. 

OFF 

Disconnects the module outputs from the C8k buses on power up. 

Important note! To avoid audio bus conflicts when you replace a module or install an additional one and 

the configuration is unknown, the output bus drivers must be disabled by BUS-EN=OFF before inserting 

it. If all settings are done remotely and the unit fits into the bus assignment scheme of a frame, you must 

remove it and place the switch back into position BUS-EN=ON. 

TDM: 

must be OFF 




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rotary encoder settings 

I/O 

MODE 

CAN 

not used 

not used 

0 – F 

The 16 switch positions are hexadecimal numbers (0x0 to 0xF) it sets the 

CAN ID. Each module within a frame must be assigned a unique CAN bus 

address for proper communication with other parties of the frame, e.g. the 

frame controller or the GPI/O module. 

Important note! This address also sets the position of the module graphic when you control the frame 

via the web GUI by a C8702 frame controller. See C8k system manual for details. 

remote control operation 

- Web-server based remote control of parameters via frame controller C8702 

- 3 rd party remote control by http protocol based API 

(please contact Junger Audio for details) 

- Hardware GPI/O control of preset operation and special module functions 

- Remote control by the brc8x Broadcast Remote Controller via CAN bus 




Germany 

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fax: +49-30-677721-46 



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web browser based GUI 

Set up of all configurations, parameters and functions via a web browser. 

See also C8702 Frame Controller. 

OVERVIEW 

The modules overview of a frame (below the display of an example frame) : 

By simply clicking on the spanner tool symbol you will get the control pages of the C8086-4 (- 

8) and the status window on the left side, which you will also see on mouse over. 

The entrance to the module setup is the PRESET page: 




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PRESETS 

The C8086-4(-8) has 14 Presets. The status window at the left hand side shows the names of the 

active preset. The phrase “modified” will appear in line with the preset name, if a preset parameter 

was changed. 

Load Preset 

select a preset by name and press 

Channel Mode 

The 4 soft LEDs show which channel is effected by the active preset 

Save as Preset # select a preset NV memory number 

Name 

assign the preset a name (up to 16 digits) and check the Channel 

Mask check boxes for which the preset shall be saved 

and press . 

Preset Clipboard copy the active preset to a clip board, the data may be used by other 

modules inside the same frame. 

Backup Presets to File creates a backup XML file which may be stored to the PC 

Restore Presets from File you can select a backup file from the PC. 




Germany 

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Table of LevelMagic factory presets 

PRESET# 1 … 8 9 10 11 

USER x SPORT 

Loudness 

SPORT 

Level 

SHOW 

Loudness 

Input Gain 0.0 0.0 0.0 0.0 dB 

Leveller 

Process Control Level Loudness Level Loudness 

Loudness Target -22 -24 LKFS 

Operating Level -18 -18 dBFS 

Time 40sec. 20sec. 20sec. 40sec. 

max. Gain 10 10 10 12 dB 

Freeze Level -50 -42 -42 -39 dBFS 

Transient Processor 

Response mid hard hard Mid 

max. Gain 10 10 10 10 dB 

Limiter 

max. Peak Level -9.0 -6.0 -9.0 -6.0 dBFS 

Processing uni live live speech 

PRESET# 12 13 14 

Show 

Level 

Movie 

Loudness 

Movie 

Level 

Input Gain 0.0 0.0 0.0 dB 

Leveller 

Process Control Level Loudness Level 

Loudness Target -27 LKFS 

Operating Level -18 -18 dBFS 

Time 40sec. 2min 2min 

max. Gain 12 8 8 dB 

Freeze Level -39 -37 -37 dBFS 


Response mid sof Soft 

max. Gain 10 6 6 dB 

Limiter 

max. Peak Level -9.0 -6.0 -9.0 dBFS 

Processing speech uni uni 

The USER1 – USER8 Presets have the default parameters of the formally know Universal Preset. 

All 14 Presets may be overwritten by the user. 




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DEVICE 

Device Name 

FIRMWARE 

Controller 

DSP 

FPGA 

Restart Module 

Initialize and Restore 

Factory Defaults 

you can assign the module a name (up to 16 digits) 

displays the various firmware versions of the C8086 components 

the module controller 

the LevelMagic algorithms 

the DSP interface FPGA 

performs a warm start (soft reset) 

restores the factory default values for all parameters of 

the module including all presets. 




Germany 

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Backup Settings and 

Presets to File 

Restore Settings and 

parameters from File 

will put all active parameters and the content of all presets 

into an XML file. You may store such file on a PC. 

you may select a matching XML file from a PC. 

will overwrite all active parameters and the content of the 

presets by the content of the backup file. 

SETUP 8086-4 

This is an informal page that shows the signal flow and processor configuration (2x one channel 

and one time two channel - Ch 3/4 linked). 




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SETUP 8086-8 (Operating Mode = 4 x 2 Channel) 

This is an informal page that shows the signal flow and processor link configuration 

(Ch 1 /2 and 3 / 4 are linked for stereo operation). 




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SETUP 8086-8 (Operating Mode = Surround) 

Here you can configure the channel assignment for the surround processor, the operation of the 

downmix unit as well as the input selection of the remaining 2 Channel (stereo) LevelMagic 

processor. 

If the signal path is routed for Downmix you can setup the Downmix parameters: 

Downmix * Mode - The operating modes of the downmix processor: 

Mute / Mono / Lo/Ro / Lt/Rt 

* Cmixlev - Center mix level 

-3 / -4,5 / -6dB 

* Smixlev - Surround mix level 

-3 / -6dB / OFF 




Germany 

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PARAMETERS C8086-4 

From here you can control the LevelMagic process. 

Level Magic Process * Level - the Junger proprietary peak operating level control 

Control 

* Loudness - the ITU-BS.1770 weighted loudness control 

Bypass 

the process parameters will be bypassed to validate the actual settings 

Input Gain 

additional static gain to align the processing to the level diagram 




Germany 

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Leveler 

Loudness Target / 

Operating Level 

Time 

max Gain 

Freeze Level 


Response 

max Gain 

Limiter 

max Peak Level 

Processing 

Bit Transparent 

Proc Status Monitor 

if the ITU weighting is turned on this becomes the Loudness Target 

if the Level function is turned on this becomes the Operating Level 

development time to reach max Gain 

the maximum gain change applied by the leveler (AGC) 

stop value for gain change of the Leveler to prevent unwanted 

increase of noise (the process will freeze). 

the “grip” of the Transient Processor 

the maximum gain change applied by the Transient Processor 

the maximum peak level at the output (limiter threshold) 

the processing program for the limiter 

for pairs of input signals it is possible to turn the matrix into 

bit transparent mode. This allows passing Non Audio (e.g. Dolby E) 

signals through the matrix without destroying it. 

Off – not transparent for Non Audio signals 

On – always transparent for Non Audio signals 

Auto – automatic switch over if a Non Audio signal is detected 

if the average gain of the module is equal or above the Leveler Range 

for more than 10s the respective Processing Status soft LED 

becomes red. This status information is condensed for all processing 

channels by the module controller. The frame controller will condense 

the status information for all processing modules within a frame and 

may generate a SNMP trap and/or fire a GPO. In this case the SNMP 

manager may poll the frame for details to “see” which processing 

channel sticks. 




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The characteristic curve below shows the dependencies of the parameters as a static curve. 

This is just a simple abstraction. For real audio signals the dynamic behavior is very different! 




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PARAMETERS C8086-8 (Operating Mode = 4 x 2 Channel) 

The parameters are similar to the C8086-4 




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PARAMETERS C8086-8 (Operating Mode = Surround / Linke Mode=MOVIE) 

Link Mode 

Input 2L/2R 

for surround operation the C8086 offers several link modes which are 

useful for different surround set ups. 

In broadcast play-out or re-broadcasting situations the link mode ALL 

will be used. 

The example above shows the MOVIE set up where the L/R and 

Ls/Rs are linked respectively while C and LFE are not linked. 

depending on the settings of the SETUP page the remaining two 

channels may be fed by the downmix unit or may work independently 

as a stereo leveler. 




Germany 

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BUS ROUTING C8086-8 

Here you may assign the audio signals from the 2/4 Busses to the 4/8 processing channels. 

Input Mux Format 

Input Selector 

Main Input 

Alternative Input 

Input BUS assignment 

here you select if the input audio signals are multiplexed in 2ch or 8ch 

mode. If in 8ch mode only the upper bus assignment field will be 

available 

selects between two sets of inputs named Main and Alternative 

you can select a set of 4 busses as the main input of the module 

you can select a set of 4 busses as an alternative input bank 

you must assign the logical channels Ch 1/2 to Ch 7/8 the number of 

the bus line(s) where the input signal is expected 




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Output Mux Format 

Input BUS assignment 

here you select if the output audio signals are multiplexed in 2ch or 

8ch mode. If in 8ch mode only the upper bus assignment field will be 

available 

you must assign the logical output channels Ch 1/2 to Ch 7/8 the 

number of the bus line(s) where you want to send the output signal 

Enable C8000 Bus Drivers turns off all module bus drivers (tri state mode) 

Error Detection 

The serial audio data from the frame bus can be monitored for proper 

positioning of an Error-Flag. A bad Error-Flag is an indication that 

there is disturbance upstream (input signal, input module, 

other DSP module). 

The Error Detection can be turned Off and On for each input from the 

bus. You will see the status of the busses on the left hand side: 

“Bus Status”. A grey “LED” shows that the detection is disabled. 

While green is OK, red indicates an error condition. 

The bus status may be presented to external monitoring systems via 

SNMP. The frame controller summarizes such status information and 

generates SNMP traps for the frame as an entity or may activate 

GPOs (if GPI/O module(s) are installed). The SNMP manager may 

afterwards poll the “modulesStatus” for more detailed status 

information per input (see SNMP documentation for details). 




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GPI/O 

GPIs 

GPOs (Tallies) 

are useful if you want to recall settings remotely (e.g. by presets). 

The C8k frame can handle 127 different GPIs. You must assign a 

unique number to the respective function. Such numbers will be 

generated by the brc8x Broadcast Remote Controller or by a GPI/O 

interface module. If the C8086 receives such a number by the CAN 

bus, it will load the respective preset for example or will turn the 

bypass function on. 

may signal the status of a module by means of relay switches. Those 

relays have NO (normally open) as well as NC (normally closed) 

contacts. This allows easy interconnection with more generic 

monitoring equipment. If an event occurs the C8086 puts the assigned 

number on the CAN bus so a C8817 GPI/O module or the brc8x may 

turn on a relay or button LEDs (see C8817 manual for details). 




Germany 

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fax: +49-30-677721-46 



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