Itel D-PRO-6TV User manual

User's manual
D-PRO-6TV
© 2021 BEI Electronics LLC
Author
Version
Copyright
3.2.2 - 26/08/2021
A.Tomassini

DPRO 6 TV Audio Processor2
© 2021 BEI Electronics LLC
Table of contents
Section 1 Description 5
................................................................................................................................... 51 List of changes
................................................................................................................................... 52 Warnings
................................................................................................................................... 63 Front panel
................................................................................................................................... 64 Rear panel
................................................................................................................................... 75 Editing and navigation
Section 2 Front panel display 10
................................................................................................................................... 101 Audio processor
......................................................................................................................................................... 10AGC
......................................................................................................................................................... 10Compression levels
......................................................................................................................................................... 11Multiband limiter param eters
......................................................................................................................................................... 11Multiband limiter thresholds
......................................................................................................................................................... 11Bass parametric eq
......................................................................................................................................................... 12Bass clipper/lim iter
......................................................................................................................................................... 12Loading a preset
......................................................................................................................................................... 13Saving a preset
......................................................................................................................................................... 13Bypass
................................................................................................................................... 142 Audio input setup
......................................................................................................................................................... 14Audio levels m onitor and input level setting
......................................................................................................................................................... 14Audio source setup
......................................................................................................................................................... 15Audio processor preset selection
......................................................................................................................................................... 15Audio fallback setup (audio backup)
................................................................................................................................... 163 Audio output setup
......................................................................................................................................................... 16Audio output regulation
......................................................................................................................................................... 16Audio delay
......................................................................................................................................................... 17Loudness limiter
................................................................................................................................... 184 System setup
......................................................................................................................................................... 18Display, Source Dependent Presets, Device ID
......................................................................................................................................................... 18GPI
......................................................................................................................................................... 20PassCode Setup
......................................................................................................................................................... 20Ethernet setup
......................................................................................................................................................... 20System info
......................................................................................................................................................... 21Options
......................................................................................................................................................... 21Login w indow
................................................................................................................................... 225 Headphones Level
Section 3 Programmming software 24
................................................................................................................................... 241 Main window
................................................................................................................................... 252 Processor Params
......................................................................................................................................................... 25Processor Presets
.................................................................................................................................................. 27AGC
.................................................................................................................................................. 28Multiband

3
© 2021 BEI Electronics LLC
.................................................................................................................................................. 29Bass EQ
......................................................................................................................................................... 29Audio input-output
......................................................................................................................................................... 31System setup
......................................................................................................................................................... 32Loudness limiter
................................................................................................................................... 333 Loading and saving a preset
................................................................................................................................... 344 Loading and saving system
................................................................................................................................... 355 Passcode setup

Section 1
Description

5Description
© 2021 BEI Electronics LLC
1 Description
This product is a fully multiband digital audio processor ideal for general Dtv and multimedia
applications.
All audio processing is realized using DSPs, allowing for stable performance over time and
extending functionality with firmware upgrades.
The audio processing chain comprises a two bands AGC which feeds the six bands limiter-
compressor, followed by a final clipper-limiter operating at 96KHz, optimized for distortion masking,
thus obtaining a cleaner and clipping artifacts free sound.
1.1 List of changes
1.0.0.0 28/07/2015 first release
1.1.0.0 10/09/2015 updated to new firmware 3.0 features
1.2.0.0 13/01/2016 updated to new firmware 3.1 features
3.2.0.0 14/09/2016 updated to new firmware 3.2 features
3.2.1.0 08/03/2021 updated to new firmware 3.2.1 features
1.2 Warnings
Before attempting any operation, please follow the safety instructions contained in the
following paragraph.
The producer declines any liability for damage to people or things due to non-compliance,
even if partial, of the following indications
• Ensure that the supply voltage corresponds to what is indicated on the apparatus.
• Ensure that the electrical system is equipped with a ground connection.
• Use only power sockets and cables with ground connection
• Disconnect power before attempting any operation inside the device.
• The power cutting device is the power cord, so this should be easily accessible and the socket
must be positioned close to the apparatus.
• Any operation involving the access to internal parts must be performed only by trained service
personnel.

6D-PRO-6TV Audio Processor
© 2021 BEI Electronics LLC
1.3 Front panel
Front panel indicators and rotary knob
Headphone stereo jack 6,3mm (1/4")
• GATE: led is on when level is below gate threshold
• CLIP: the analog input level is too high.
• DIG IN: AES/EBU digital input is selected as audio source
• IP-SDI: SDI is selected as audio source as audio input.
• AGC: input AGC gain level
• MULTIBAND LIMITER: multiband limiter compression level
Menus navigation and parameter editing is done through the rotary knob.
1.4 Rear panel
Connectors on rear panel
DIG OUT (XLR M) AES/EBU output
DIG IN (XLR F) AES/EBU input
LEFT IN (XLR F) Left analog input
RIGHT IN (XLR F) Right analog input
SDI OUT2 (BNC F) Sdi auxiliary output, unswitched
SDI OUT1/SW (BNC F) Sdi main output with bypass switch
SDI IN (BNC F) Sdi input
LEFT OUT (XLR M) Left channel analog output
RIGHT OUT (XLR M) Right channel analog output
RS232 (DSUB 9F) RS232 connector
USB DRIVE (USB-A) not used
LAN (RJ45) LAN connector for remote control

7Description
© 2021 BEI Electronics LLC
1.5 Editing and navigation
Menu navigation and parameters editing is done by the front panel knob.
On the main menu which appears after firmware boot, is possible to select the submenu for the
various settings.
Pressing the knob, will enter the selected submenu.
Once entered in the desired sub-menu, if there are adjustable parameters, you can proceed to
editing
Pressing the knob, an asterisk "*" will appear next to the first editable element. This will not happen
if, on the current window, there are no editable parameters.
Turn the knob to position the "*" cursor on the other editable elements of the current window.
If you want now to change the analog input sensitivity, press the knob again. A "<" symbol will
appear next to the parameter to indicate that this is being edited.

8D-PRO-6TV Audio Processor
© 2021 BEI Electronics LLC
Turning the knob, you now will modify the selected parameter's value.
Once set the desired value, press the knob again. The cursor will switch to "*" again, indicating that
items navigation mode is now active and other items can be selected and edited as described
before.
If editing is however terminated, press the knob again and the "*" cursor will disappear and you can
rotate the knob to navigate to other windows.
Inside any submenu, pressing the knob for more than 3 seconds, will cause a jump to the main
menu.
When pressing the knob for 1 seconds, will appear the Headphone Level regulation.

Section 2
Front panel display

10 D-PRO-6TV Audio Processor
© 2021 BEI Electronics LLC
2 Front panel display
Following are listed all menus and functionalities available on the current firmware release.
2.1 Audio processor
Into this section are comprised all functions and menus related to the audio processor.
2.1.1 AGC
This window contains the settings for the dual band automatic gain control (AGC) block, placed at
the head of audio processing chain.
The automatic gain control performs a pre-leveling of the signal applied to the following compressors/
limiters, keeping their working point almost constant.
At the right side of the bar which indicates the level of pre-amplification applied to the input signal, is
placed the AGC status indicator: if "gate" indication is off, the input level is above the gate threshold
and the AGC and compressors/limiters are operating correctly, if "gate" indication is on, it means
that the input signal is below the minimum level so the AGC release is slowed down and the AGC
will slowly raise its gain.
Release (...): AGC release time setting (40% fastest, 200% slowest).
Gate: Gate level serring. Below this level, the AGC and multiband limiter release is slowed down.
Link: set the maximum compression difference between the bass and middle/highs band.
Setting this value to zero, the bass compression level will be totally independent and this will cause
also a mild auto-equalization.
Setting this value to 100%, it will force the bass compressor to have a gain never greater than the
middle/highs band giving a sound very close to the original.
Drive: indicates the AGC input driving level, thus determining the AGC maximum gain .
2.1.2 Compression levels
In the window, the gate status and compression-limiting levels of the multiband limiters are shown.