Audio Processor
UAP-1781 –Eight Channel Universal Audio Processor
Installation and Operation Manual
M768-9900-101
August 2004
SERIE (DENSITÉ)
UAP-1781 - Preliminary Introduction
Features
The UAP-1781 is an eight channel high quality audio
processor designed to work alone or with a variety of video
converters, frame sync or proc amps of the Densité series.
• analog and digital audio inputs/outputs
Inputs can be analog, digital and extracted from the
associated video card. The card provides processing for 8
channels originating from a video card. The processed
signals are sent back to the video processor to be
embedded, and are also available at the analog and digital
outputs.
• 24 bits high quality audio converters
It provides the combination of signal conversions (A to D
and D to A), level controls, phase inverters, video match
and fixed delay adjustments, shuffling and mixing.
• 0 dBFS selectable (0 to +28 dBu, 1 dB steps)
An internal digital EBU tone generator facilitates alignment
of audio levels. User-defined channel identification data
may be encoded in the AES status bits. An input audio
signal status is also available indicating the input signal
presence or overload.
• Overload detection and reporting
The card is housed in a (DENSITÉ) frame, with a single or
double width rear connector panel. Based on the rear
module installed, the UAP-1781 is compatible with AES3 or
AES-3id digital audio standards.
• fixed delay and up to 8 video frames tracking delay
• output shuffler and mixer
• Audio metering data for audio levels and phase over IP
• Dolby E compatibility
• Balanced AES3 or unbalanced AES3-id outputs
• -96 to +12 dB of level adjustment (by 0.5 dB steps)
• Internal EBU tone generator
• Absence signal delay and threshold adjustable
• All settings through frame control panel or remotely
• Status LED and alarms remote reporting
Applications
• With a DEC-1xxx in Incoming feeds applications as A to D
converter and audio processor.
• Companion to an ENC-1xxx as an audio proc and a final D
to A converter.
• Stand-alone or associated to a FRS-1xxx as an audio
processor with analog inputs and outputs.
To/From Video card
FRAME REF
REF/MSB
MSB
From FRAME REF
1
Genlock
AES IN 1
AES IN 2
AES
RX/
SRC
3
Channel
Swap
& Lock
1L
ANALOG R1
IN L2
R2
24-Bit
ADC
Channel
Swap
& Lock
4 ch.
Audio
Level
Ctrl
4 ch.
Video
Tracking
Delay
Fixed
Delay
4 ch.
Audio
Level
Ctrl
4 ch.
Video
Tracking
Delay
Fixed
Delay
Phase
Invert
SUM/
MIX
UAP-1781 Functional Block Diagram
2
AES
OUT
L1
5
4x
24-Bit
DAC
7
Phase
Invert
1
4
6
To/From 2nd Audio card
Sheet 1 of 10
AES
TX
2
DARS
8
R1 ANALOG
AUDIO
L2 OUT
R2
4 ch.
ALM
Micro-Controller
Remote
Control
UAP-1781
Installation and Operation Manual
Specifications
Analog Inputs (4)
Signal : .................... analog audio
Input impedance : ..... > 10 kΩ
Max. Level : .............. +24 dBu
Digital Inputs (2)
Sampling freq.: ......... 32 to 100 kHz
Quantization: ............ 16 to 24 bits
AES3:
Level :....................... 0.2 to 7 Vpp
Input impedance : ..... 110 Ω balanced
AES3-id:
Level :....................... 0.2 to 2 Vpp
Input impedance : ..... 75 Ω
Return loss: .............. 25 dB @ 12 MHz
Processing:
Sampling frequency:. 48 kHz
Quantization: ............ 24 bits
0 dBFS: .................... adj. 0 to +28 dBu (1 dB steps)
Analog to Digital:
Freq. response: ....... ± 0.05 dB (20 Hz to 20 kHz)
SNR:......................... 118 dB (A weighted)
THD+N: .................... -100 dB (20 Hz to 10 kHz)
Crosstalk: ................. -100 dB (20 Hz to 20 kHz)
Group delay: ............. 0.427 ms
Digital to Analog:
Freq. response: ....... ± 0.1 dB (20 Hz to 20 kHz)
SNR:......................... 117 dB (A weighted)
THD+N: .................... -95 dB (20 Hz to 10 kHz)
Crosstalk: ................. -100 dB (20 Hz to 20 kHz)
Group delay: ............. 3.1 ms @ 48 kHz ISR
Miscellaneous
Tone generator: ........ 1 kHz sine wave interrupted on left
channel (250 ms / 3 s) EBU R49.
Signal presence threshold:
from –72 to –54 dBFS
(6 dB steps)
No signal delay: ........ from 0 to 255 s (1 s steps)
Fixed delay ............... 0 to 2.4 s
................................. Step : 1 ms (coarse), 1 sample (fine)
Tracking delay .......... 0 to 8 video frames
Analog Outputs (4)
Signal : .................... balanced analog audio
Output impedance: ... 50 Ω
Max. Level : .............. +24 dBu
Min. Load: ................ 600 Ω
Digital Outputs (2)
Sampling freq.: ......... 48 kHz
Quantization: ............ 24 bits
Intrinsic Jitter : .......... 5 mUI (700 Hz to 100 kHz)
AES3
Level:........................ 4 Vpp
Impedance : ............. 110 Ω
AES-3id
Level:........................ 1.0 Vpp
Impedance: .............. 75 Ω
Return loss: .............. 15 dB @ 12 MHz
Digital to Digital:
Freq. response: ........± 0.02 dB (20 Hz to 20 kHz)
SNR: .........................123 dB (A weighted)
THD+N: .....................-130 dB (20 Hz to 10 kHz)
Crosstalk: ..................-120 dB (20 Hz to 20 kHz)
Audio group delay: ....2.52 ms @ 48 kHz ISR
Data group delay:......0.30 ms @ 48 kHz ISR
Analog to Analog:
Freq. response: ........± 0.3 dB (20 Hz to 20 kHz)
SNR: .........................114 dB (A weighted)
THD+N: .....................-95 dB (20 Hz to 10 kHz)
Crosstalk: ..................-100 dB (20 Hz to 20 kHz)
Group delay: .............1.0 ms
Power
UAP-1781-xxxxx-SRP:........< 5 W
UAP-1781-xxxxx-DRP:........< 10 W
Specifications are subject to change without notice.
Menu Introduction
Most parameters are accessed and changed via an easy-to-use menu. The flow chart below outlines the entire DAC-1721
menu path. Each menu is described throughout this section.
The procedure and the operation mode are described in the common paragraph of the DENSITÉ Manual. The menu
organization is made out of a main menu and several sub-menus. A press on the [SELECT] front panel push button accesses
to the menu. A lack of activity turns off the display. Default values are written with bold characters.
Sheet 2 of 10
UAP-1781
Installation and Operation Manual
STATUS
FPGA FAILURE, REAR PANEL ERROR, REF: parameter1,
REAR: parameter2
GENERAL
parameter1 = A-BUS, FRAME, EXT. DARS, FREE-RUN
(selon le fond, cartes présentes sur A-BUS et
REF-1701)
parameter2 = A/D 75, A/D 110, D/A 75, D/A 110,
A/A, UNIV 75, UNIV 110
A/D CONVERSION
OK, OVERLOAD 1L, OVERLOAD 1R, OVERLOAD 2L,
OVERLOAD 2R
AES IN
AES1 parameter1, AES1 FRQ parameter2, AES2
parameter1, AES2 FRQ parameter2
parameter1 = OK, VALIDITY, CRCC, PARITY,
BIPHASE, NO LOCK
parameter2 = UNKNOWN, 96kHz, 88.2kHz, 48kHz,
44.1kHz, 32kHz
CHANNEL STATUS
CHANNEL USE, PCM SAMPLES, EMPHASIS, FREQ MODE,
SAMPLING FREQ, CHANNEL MODE, USER-BIT, AUX.BITS,
WORD LENGTH, REFERENCE, SOURCE ID, DESTINATION
ID.
Chaque item sera placé sur la première ligne et
son statut correspondant sur la deuxième.
AES 1L
AES 1R
AES 2L
AES 2R
PROFILES
INPUT PROCESSING
OK, SILENCE CH1, ..., SILENCE CH16, OVERLOAD CH1,
..., OVERLOAD CH16, MUTE CH1, ..., MUTE CH16
ANALOG OUT
OK, TONE 1, TONE 2, MUTE 1L, MUTE 1R, MUTE 2L,
MUTE 2R
AES OUT
OK, TONE 1, TONE 2, MUTE 1L, MUTE 1R, MUTE 2L,
MUTE 2R
LOAD
USER 1, USER 2, USER 3, USER 4, USER 5
SAVE
INPUT PROCESSING
CH1 (ANALOG 1L)
LOCK (CH impairs)
OFF, X&Y (channel X=impair, Y=pair)
CH2 (ANALOG 1R)
SWAP
OFF, X&Y (channel X=impair, Y=pair)
CH3 (ANALOG 2L)
FIXED DELAY
(CH impairs < 8)
CH4 (ANALOG 2R)
COARSE (lock)
0, 1, ..., 2400
ms
FINE
0, 1, ..., 47
samples
CH5 (AES 1L)
PHASE INVERT
OFF, ON
CH6 (AES 1R)
LEVEL (lock)
-96.0, ..., -1.0, -0.5, 0, +0.5, +1.0, ..., +12.0
CH7 (AES 2L)
MUTE (lock)
OFF, ON
dB
CH8 (AES 2R)
CH9 (EXT 1/9)
CH10 (EXT 2/10)
CH11 (EXT 3/11)
CH12 (EXT 4/12)
CH13 (EXT 5/13)
CH14 (EXT 6/14)
CH15 (EXT 7/15)
CH16 (EXT 8/16)
OUTPUT MIXERS
CH1 (ANALOG 1L)
MODE
CH2 (ANALOG 1R)
CH STATUS ID
OFF, A, SUM A+B, MIX
(AES)
CH3 (ANALOG 2L)
CH4 (ANALOG 2R)
CH5 (AES 1L)
CH6 (AES 1R)
MODE
XXXX
OFF, A, SUM A+B, MIX
SOURCE A
A-BUS SELECT
AUDIO 1, VIDEO, AUDIO 2
SOURCE B (SUM,MIX)
CHANNEL SELECT
1, 2, ..., 16
LEVEL (A,MIX)
-96.0, ..., -1.0, -0.5, 0
dB
-6, -3, 0
dB
LEVEL (SUM)
MUTE
CH STATUS ID
OFF, ON
(AES)
SOURCE
DESTINATION
Sheet 3 of 10
OFF, ON
DESTINATION
CH7 (AES 2L)
CH8 (AES 2R)
SOURCE
OFF, ON
XXXX
UAP-1781
Installation and Operation Manual
0 dBFS SETTING
INPUT (A/D)
<0, ..., 24> dBu = 0 dBFS
OUTPUT (D/A)
0 dBFS = <0, ..., 24> dBu
NSD THRESHOLD
-72, -66, -60, -54, -48
dBFS
NSD DELAY
1, ..., 15, ..., 255
s
TRACKING DELAY
OFF, ON
TONE
ANALOG OUT 1
OFF, EBU ENABLE
ANALOG OUT 2
AES OUT 1
AES OUT 2
MONITORING
CONFIGURE ALARM
ANALOG OUT 1, ANALOG OUT 2, AES OUT 1, AES OUT 2,
ANA. OUT 1L MONO, ANA. OUT 1R MONO, ANA. OUT 2L
MONO, ANA. OUT 2R MONO, AES OUT 1L MONO, AES OUT
1R MONO, AES OUT 2L MONO, AES OUT 2R MONO
A-BUS REF
ALARM LEVEL
GREEN, YELLOW, RED, FLASH RED
FRAME REF
ALARM REPORT
NONE, GPI
AES NO LOCK
AES BIPHASE
AES PARITY
AES CRCC
AES VALIDITY
NSD ANALOG IN 1L
NSD ANALOG IN 1R
NSD ANALOG IN 2L
NSD ANALOG IN 2R
NSD AES IN 1L
NSD AES IN 1R
NSD AES IN 2L
NSD AES IN 2R
NSD EXT CH1/9
NSD EXT CH2/10
NSD EXT CH3/11
NSD EXT CH4/12
NSD EXT CH5/13
NSD EXT CH6/14
NSD EXT CH7/15
NSD EXT CH8/16
OVLD ANALOG IN
OVLD PROCESSING
TONE
OUTPUT MUTE
A-BUS CONFIG
FIRMWARE VERSION
FACTORY DEFAULT
Sheet 4 of 10
OFF, MASTER 1, SLAVE 1, SLAVE 2
CPU VERSION
CPU V.xxx
FPGA VERSION
FPGA V.xxx
RESTORE
UAP-1781
Installation and Operation Manual
Menu Description
(ACH)
Analog input channel 1L, 1R, 2L or 2R.
(CHN)
Any channel, N will take a value from 1
to 16. Channels 1 to 4 refer to the analog
inputs, 5 to 8 to the digital inputs, 9 to 16
to the eight channels coming from the
adjacent video card via the ABUS link.
(STE)
GENERAL: displays status of the different board alarms, the
selected reference signal and the rear type.
Faulty programmable component.
REAR PANEL ERROR Indicates an absence of the rear panel or
an incompatibility between the module
and the rear panel. The STATUS led turns
on flashing red.
REF(parameter)
REAR(parameter)
A/D CONVERSION:
The reference source selection is
automatic between ABUS (highest
priority), via the card front edge ABUS
link, FRAME from a REF-1701 in slot 20,
EXT.DARS from the card digital input 1,
or FREE RUN (lowest priority).
It indicates the type of the rear panel. The
five
single
width
panels
are
A/D 110, A/D 75, D/A 110, D/A 75 and
A/A. The two double width panels are
UNIV 110 or UNIV 75.
Displays OK or OVERLOAD (ACH) to
Indicate an input signal level higher than
–0.5 dBFS.
AES IN:
Gives access, for each digital input, to
the carrier quality and to the sampling
frequency measured value.
AES(parameter1)
AES carrier , only the highest rank error
is displayed. It can be NO LOCK,
BIPHASE,
PARITY,
CRCC
or
VALIDITY. No error displays OK.
AES(parameter2)
The input signal sampling frequency is
measured and this parameter gives the
value of the closest standard sampling
frequency with a +/- 4% window.
INPUT PROCESSING It will indicate, for each of the 16 input
channels, if it is in a silence, overload or
muted condition. No error displays OK.
Sheet 5 of 10
The parameters are defined in the NSD
THRESHOLD and NSD DELAY menu.
OVERLOAD (CHN)
The threshold is set at -0.035 dBFS.
MUTE (CHN)
Input mute condition.
ANALOG OUT
Displays OK, TONE for each stereo
output or MUTE for each output.
TONE (STE)
The tone provides channel identification:
the left channel is cut off for 250 ms
every 3s.
MUTE (ACH)
Output mute condition.
AES OUT
Displays OK, TONE foe each stereo
output or MUTE for each output.
TONE (STE)
The tone provides channel identification:
the left channel is cut off for 250 ms
every 3s.
MUTE (ACH)
Output mute condition.
CHANNEL STATUS
This menu gives access to the most
relevant parameters coded with the
channel status bit on a per channel basis.
CHANNEL USE
Displays PRO or CONSUMER.
PCM SAMPLES
Coding of incoming data: LINEAR or
NON LINEAR.
EMPHASIS
Coding of the emphasis applied on the
signal.
FREQ MODE
Indicates if the source is locked to a local
reference signal.
1 for stereo 1L and 1R, 2 for 2L and 2R.
{STATUS}
FPGA FAILURE
SILENCE (CHN)
SAMPLING FREQURNCY
Value of the sampling frequency.
CHANNEL MODE
Describes the way the two channels are
used.
USER BIT
Utilization of the user bits.
AUX. BITS
Utilization of the auxiliary bits.
WORD LENGTH
Coded quantization value.
REFERENCE
Specifies if the source is a reference
signal.
SOURCE ID
“origin” signal
characters).
DESTINATION ID
“destination” signal message (4 ASCII
characters).
message
(4
ASCII
UAP-1781
Installation and Operation Manual
Menu Description (suite)
CH.STATUS ID
{PROFILES}
Five user setups (USER1 to USER5) are available, they allow
saving five card configurations into a non-volatile memory.
LOAD
Recall the stored board parameters.
SAVE
Stores the actual setup in a user memory.
SOURCE A
ABUS SELECT
{INPUT PROCESSING}
For digital channels, the processing will be effective only on
channels carrying audio PCM samples. Non audio data will pass
through the input stage, with the FIXED DELAY as the only
parameter still active.
According to the SLAVE 1/SLAVE 2 selection (ABUS menu) the
channels 9 to 16 will be numbered EXT 1 to 8, or EXT 9 to 16.
LOCK
Accessible only after an odd channel selection. When
locked, for the parameters DELAY (COARSE only), LEVEL and
MUTE, the same value will be applied to the two channels (n and
n+1).
SWAP
FIXED DELAY
PHASE INVERT
LEVEL
MUTE
Accessible only after an odd channel
selection (channel 1 to 7 only), swaps the
selected odd channel and the associated
even one.
Select COARSE to get a 1 ms step and
FINE for a sample step (20.8 µs).
This adjustment is made within a range of 96 dB to +12 dB by 0.5 dB steps. The
default value is 0 dB.
Input mute.
CHANNEL SELECT
LEVEL
SOURCE B
LEVEL
MUTE
Sub-menu available only for digital
channels. It allows the choice of specific
source and destination identifiers. When
OFF is selected the input and output
identifiers are identical.
Selection and level adjust for the SOURCE
A channel.
first selection between three groups of 16
signals. One group comes from the video
card, and two groups from the audio card 1
and 2.
selection of 1 of the 16 channels from the
selected group.
This adjustment is made within a range of
-96 dB to 0 dB by 0.5 dB steps. The default
value is 0 dB.
Selection and level adjust for the SOURCE
B channel with the same sub-menus.
Attenuation selection, active only in MIX
MODE.
Output mute.
{O dBFS}
Enables the selection of the RMS value of the input and output sine
wave voltages associated to the digital full scale 0 dBFS.
{NSD THRESHOLD}
Signal absence is declared when the signal level is lower than the
signal threshold during the selected period. The threshold can be
adjusted from –72 to –48 dBFS by 6 dB steps. The default value is
–60 dBFS.
{OUTPUT MIXERS}
{NSD DELAY}
For digital channels, the processing will be effective only on
channels carrying audio PCM samples. Non audio data will pass
through the output stage, with the source selector (in MODE A) as
the only parameter still active.
The signal absence period can be adjusted from 0 to 255 s. The
default value is set to 15 s.
This menu allows for each output signal
the source selection between single channel
and the sum or mix of two channels. The
available sub-menus will depend on the
mode selection
MODE (OFF)
The output channel is muted.
MODE (A)
A single channel will be output among 48
sources. Its selection is done in sub-menu
SOURCE A:
MODE (SUM A+B)
The sum of two channels selected among
48 sources with separate level adjustments. The two selections are
done in sub-menus SOURCE A and SOURCE B.
ABUS SELECT, CHANNEL SELECT and LEVEL are available
for each source.
MODE (MIX)
The mono mix of two channels selected
among 48 sources. Fixed attenuations of 0, -3 and -6 dB are
available via the specific LEVEL menu. The two selections are done
in sub-menus SOURCE A and SOURCE B.
ABUS SELECT and CHANNEL SELECT exist for each source.
When enabled this variable delay ensures synchronization between
audio signals and video image.
MODE
Sheet 6 of 10
{TRACKING DELAY}
{TONE}
Enables to activate the tone generator. The internal tone generator
provides an 1 kHz (- 18 dBFS) sine wave. The EBU mode provides
channel identification: left channel is cut off for 250 ms every three
seconds.
{MONITORING}
Remote audio control is available via a monitor card in slot 20 of
the Densité frame. The menu allows the selection of a single or dual
channel audio signal, the ON/OFF command will be remote
controlled by the monitor card.
UAP-1781
Installation and Operation Manual
Menu Description (suite)
{CONFIGURE ALARM}
{ABUS CONFIG}
It is possible to associate the STATUS Led color and/or GPI relay
activation to each detected error.
When the ABUS link is used with a video processor, the audio card
has to be in slave mode. If another audio card is also present, one
has to be selected in SLAVE 1 and the other in SLAVE 2.
Alarm relay activation depends of the ENABLE selection of the
controller board menu GPI REPORT.
ALARM LEVEL
ALARM REPORT
Associates to each error the STATUS
led color: GREEN, YELLOW, RED
and FLASH RED. This selection has
no influence on the {STATUS} menu
display.
The default value NONE is assigned
to errors. Alarm relay activation will
be associated to an error when GPI is
set.
When two audio cards are used alone, one must be selected in
MASTER 1 and the other in SLAVE 2. If the selection is OFF, the
audio card does not send any signal onto the ABUS.
CAUTION: All the cards which will use the ABUS link have to be
powered up before the connection of the flat cable.
{FIRMWARE VERSION}
CPU VERSION
Microcontroller firmware version
FPGA VERSION
Programmable
logic
firmware version.
element
{FACTORY DEFAULT}
RESTORE
Sheet 7 of 10
Set the module with the factory
default parameters.
UAP-1781
Installation and Operation Manual
Status and Report
This table shows the front Led color and the report action according to the level of a given error condition. Notice that the
“Flashing Yellow” indicates that the SELECT button on the front panel has been pushed, and the card is being accessed via the
communication protocol.
Serial
Report
GPI
Report
Green
Yellow
Red
Flashing
Red
Flashing
Yellow
›
›
ABUS reference error
›
›
Frame Reference Error
›
›
AES carrier no lock
›
›
AES carrier biphase
›
›
AES carrier parity
›
›
AES carrier CRCC
›
›
AES carrier invalid sample
›
›
NSD Analog input 1 L
›
›
NSD Analog input 1 R
›
›
NSD Analog input 2 L
›
›
NSD Analog input 2 R
›
›
NSD AES input 1 L
›
›
NSD AES input 1 R
›
›
NSD AES input 2 L
›
›
NSD AES input 2 R
›
›
NSD external channel 1 (9)
›
›
NSD external channel 2 (10)
›
›
NSD external channel 3 (11)
›
›
NSD external channel 4 (12)
›
›
NSD external channel 5 (13)
›
›
NSD external channel 6 (14)
›
›
NSD external channel 7 (15)
›
›
NSD external channel 8 (16)
›
›
OVERLOAD analog inputs
›
›
OVERLOAD processing
›
›
Any TONE activated
›
›
Any output Mute
User attention
Yes
Rear panel error
Yes
FPGA error
Yes
› : Factory default.
Note: The non requested message affectation to an alarm status can only be accessed by the communication protocol
(serial port)
Sheet 8 of 10
UAP-1781
Installation and Operation Manual
Front Edge Presentation
Connections
Dual rear panels AES3 or AES3-id compatible:
1R
+ G -
2L
+ G -
2R
ANALOG IN
+ G -
ANALOG OUT
D1
SELECT
+ G - + G - + G - + G -
1L
+ G -
AES OUT
1
2
UAP-1781
AES IN
+ G -
UAP-1781
UAP-1781DA75-SRP
1L
+G-
+G-
2L
1A
+G-
+G-
1A
AUDIO OUT
+G1R
AUDIO OUT
+G1R
2L
2R
2R
+G-
+G-
+G-
AUDIO OUT
+G-
+G-
1/DARS
1/
DARS
2
UAP-1781
+G-
UAP-1781
UAP-1781
UAP-1781
+G-
UAP-1781
2
AES IN
+G-
AES IN
AES OUT
+G-
AES OUT
Sheet 9 of 10
2
+ G -
+G-
+G-
+G2
AES OUT
+G-
+G-
1R
2R
2A
1L
1
1
2
+G-
2R
1A
1A
UAP-1781DA110-SRP
1L
2L
1A
1
1R
2 RIGHT
Single rear panels AES3 or AES3-id compatibles
AUDIO IN
+G-
1R
AUDIO IN
+G-
1R
AUDIO IN
+G-
1A
2A
1L
1L
2L
2R
+ G -
1L
UAP-1781AA-SRP
AES IN
+ G -
Single rear panels AES3 or AES3-id compatibles
2 RIGHT
ANALOG OUT
2L
+ G -
UAP-1781
+ G - + G - + G - + G -
1R
1A
UAP-1781AD75-SRP
1L
+ G -
ANALOG IN
+ G -
Status Led
Switch
UAP-1781AD110-SRP
UAP-1781AADD75-DRP
SW1
+ G -
STATUS
UAP-1781AADD110-DRP
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