AMC OCTO User manual
User
Manual
OCTO
Digital signal processor
Safety instructions
When using this electronic device, basic precautions
should always be taken, including the following:
1Read all instructions before using the product.
2Do not use this product near water (e.g., near a bathtub, washbowl,
kitchen sink, in a wet basement or near a swimming pool etc).
3 Use this device when you are sure that DSP has
a stable base and it is fixed securely.
4This product, in combination with loudspeakers and amplifier may be
capable of producing sound levels that could cause permanent hearing
loss. Do not operate for a long period of time at a high volume level or at
a level that is uncomfortable. If you experience any hearing loss or ringing
in the ears, you should consult with otorhinolaryngologists.
5The product should be located away from heat sources such as radiators,
heat vents, or other devices that produce heat.
6The product should be connected to a power supply that is described
in the operating instructions or are marked on the product.
7Before the wiring always unplug equipment’s from main power supply.
USER MANUAL OCTO Digital signal processor
CAUTION
To reduce the risk of electric shock, do not remove screws.
No user-serviceable parts inside. Refer servicing to qualied
service personnel. To reduce the risk of re, electric shock
or product damage, do not expose this apparatus to rain,
moisture, dripping or splashing and that no objects lled
with liquids, such as vases, shall be placed on the apparatus.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
8The power supply should be undamaged and never share an outlet
or extension cord with other devices. Never leave device plugged
in the outlet when it is not being used for a long period of time.
9Care should be taken that objects do not fall into liquids and liquids
would not be spilled on the device.
10 The product should be serviced by qualified service personnel if:
– The power supply or the plug has been damaged.
– Objects have fallen into or liquid has been spilled on the product.
– The product has been exposed to rain.
– The product has been dropped or the enclosure damaged.
11 There are some areas with high voltage inside, to reduce the risk of electric
shock do not remove cover of the microphone receiver or power supply.
The cover should be removed by the qualified personnel only.
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Maximum Usage 65mm
Minimum Usage 18mm
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Minimum Usage 18mm
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Maximum Usage 65mm
Maximum Usage 65mm
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Table of contents
USER MANUAL OCTO Digital signal processor
Before you start
Introduction......................................................................................................................................................2
Features................................................................................................................................................................2
Operation
Front panel ........................................................................................................................................................3
Rear panel...........................................................................................................................................................4
Software interface
MENU BAR
File menu............................................................................................................................................................5
Local setting menu......................................................................................................................................6
MAIN PROGRAM WINDOW
Main window..............................................................................................................................................7-8
Matrix.............................................................................................................................................................9-10
Priority........................................................................................................................................................11-12
Auto mixer ..............................................................................................................................................13-14
Ambient noise compensation..................................................................................................15-17
Input settings........................................................................................................................................18-20
Test tone...........................................................................................................................................................20
Compressor....................................................................................................................................................21
Gate .....................................................................................................................................................................22
Auto gain.........................................................................................................................................................23
Output settings...................................................................................................................................24-25
OTHER MENU BAR SETTINGS
Device setting menu.......................................................................................................................26-38
RS232 protocol
RS232 protocol.....................................................................................................................................40-46
Specifications
General specifications.............................................................................................................................47
USER MANUAL OCTO Digital signal processor
Before you start
OCTO - 8 input and 8 output full matrix DSP platform for microphone and line level audio processing. High performance
24 bit AD/DA converters. Processor configuration can be done in real time with computer via Ethernet. All inputs have
compressors, equalizer, gate and auto gain functions and are designed for both line and mic level audio signals. Phantom
power, sine wave, pink and white noise generators, auto mixer, priority control. Automatically adjust output level accord-
ing ambient noise microphone measurements. Limiter and EQ designed for all outputs. GPIO programmable inputs and
outputs. User friendly and intuitive operation software.
FEATURES
• Digitalsignalprocessor8x8
• Compressor,limiter,gate,parametricequalizer
• Ambientnoisecompensation
• Automixer
• Autogain
• Testtonegenerator
• BalancedLine/Micinputs
02
• Inputpriorityselection
•Phantompower
•Ethernetcontrolport
•GPIOinputs/outputs
•Videocameravoicetracking
•RS232andRS485cameracontrol
•VISCAandPELCOLDvideocameracontrol
•RS232interfacetocontrolmute,matrixfunctionandaudiolevel.
USER MANUAL OCTO Digital signal processor
Front Panel
1. Power on indicator |2. Main power switch
Operation
12
03
USER MANUAL OCTO Digital signal processor04
Operation
Rear Panel
1. Main power connector and fuse |2. Ethernet interface |3. RS232 serial interface for video camera control |4. Reset | 5.DCoutput12V|
6. GPIO outputs |7.DCoutput12V|8.DCoutput3,3V|9. GPIO inputs |10. RS485 serial interface |11. Balanced audio outputs |
12. Balanced audio inputs
USER MANUAL OCTO Digital signal processor05
Software interface
MENU BAR
File menu
OPEN
Opens and load previously saved DSP presets from AMC/OCTO/file catalog
located, in computer’s memory. The new DSP configuration will be loaded to
currently selected preset. Open function also can be enabled by using
icon located in main software window.
SAVE
This function saves DSP configuration to currently selected preset to AMC/
OCTO/file catalog. The analogue way to use save function is click
icon on main software window.
SAVE AS
Enables save DSP configuration with availability to choose file location and
name.
EXIT
Close program window.
CONNECT
Click connect in local setting menu to establish communication between OCTO
software and DSP. The same function can be done by using double click on the
IP address in device list window or by using icon in the main program’s
window. If OCTO software can’t find IP automatically, instead of login window
will be displayed device list. After IP selection connection procedure will be
continued.
Local setting menu
LOGIN WINDOW
DISCONNECT
This button stops communication between DSP and OCTO software without
the closing program window. The analogue function can be enabled by using
icon in the main program’s window.
USER MANUAL OCTO Digital signal processor06
Software interface
Local setting menu
DEVICE LIST
and OCTO are located in the same network segment. Default OCTO IP address
is 192.168.1.10 Sub net mask: 255.255.255.0 Gate way: 192.168.1.1. This address
can be changed after you connect to DSP first time by using default IP.
Pay attention: The only one user can be connected at the same time.
Connection to DSP must
be started by choosing the
device from device list. If
device is not listed, press
“Search”button to get a list
of all OCTO IP addresses
which are available in local
network. Before searching
make sure that computer
User name and password must be added
to “identify”window in order get access to
OCTO user interface.
Default user name: admin
Default password: 123456
USER MANUAL OCTO Digital signal processor07
MAIN WINDOW
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9
Software interface
1. Input level meter |2. Return to main |3. Matrix settings |4. Ambient noise compensation (ANC) module | 5. Input priority settings |6. Auto
mixer settings |7. Output level meter |8. Input name |9. Output name |10. Input level value |11. Output level value |12. Input level fader | 13.
Output level fader |14. Input settings |15. Output settings |16. Input mute | 17. Output mute |18. Input compressor indication |19. Output limiter
indication |20. Presets
USER MANUAL OCTO Digital signal processor08
Input/output level meter - level meter shows audio level in the input or output,
it indicates amplitude of an audio signal.
Main - button allows return to main OCTO window.
Matrix - configuration window which allow audio routing in 8x8 matrix and
also indicates already occupied inputs and outputs. More info in pages 9-10.
Ambient noise compensation - opens ANC setup window in order to setup
automatic audio level controlling according ambient noise level. More info in
pages 15-17.
Priority - input priority configuration window to select and setup priority audio
input. More info in pages 11-12.
Auto mixer - opens auto mixer setup window. More info in pages 13-14.
Input / output name - all OCTO audio inputs and outputs can be renamed by
user. The maximum name length is 8 symbols including letters and numbers.
Name can be changed in any menu there name window is displaying, by
mouse click.
Input / output level value - it’s a numerical values which shows what audio level
is set with fader. There is possibility to set audio level directly by adding values
to these windows.
Input / output level fader - designed to adjust audio level. Audio level can be
adjusted by dragging the fader with mouse pointer or by clicking mouse in
any area near the fader in order to force slider jump near the pointer. In order
to adjust level gradually also can be used keyboard navigation buttons“up” and
“down”.
Input / output settings - There are located basic setting for all inputs and out-
puts. Input gain (mic/line) selector, phantom power, test tone generator, com-
pressor and gate settings, limiter, auto gain, EQ and phase inverter are located
under input / output settings button. More info in pages 18-25.
Mute. Turns on/off the input and output signal.
Input compressor indication - indicates when input audio signal became com-
pressed according audio compressor module settings. Indicator became green
when audio signal is compressed, otherwise it is grey.
Output limiter indication – indicates when input audio signal amplitude be-
came limited according limiter settings. Active limiter indicates in green color.
Presets - OCTO DSP can save eight audio presets displayed in preset window.
The current preset is marked by green color near the preset name. All names
can be changed by user, except the default preset which parameters and name
can’t be changed. There are two ways how the presets can be operated: double
click on the preset name which allows load selected preset. Meantime OCTO
settings will be saved automatically to current present before loading new
preset. Other place to load the presets is“Scene Manager” menu. More about
“Scene Manager”in page 27.
Software interface
USER MANUAL OCTO Digital signal processor
09
Software interface
MATRIX
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1. Occupied input |2. Input user indication |3. Input button |4. Selected group |
5. Output button |6. Auto mixer indication |7. ANC indication |8. Exit button |
USER MANUAL OCTO Digital signal processor10
Matrix setup allow to link any audio inputs to any outputs, also display occupied
audio inputs and indicates active DSP modules linked to audio outputs.
Linking inputs and outputs - in order to link audio channels, please select re-
quired inputs and outputs. Lines between audio channels indicates audio links.
All linked channels became purple color after selection.
Create input link to several outputs - please select required input first and then
select necessary outputs which must have audio signal from selected input.
Additional click on already linked audio channel will interrupt connection. The
audio linking process can be ended by mouse click on free space at matrix area
or by closing matrix window.
Output link to input process is the same, just in this case first should be selected
output and then all inputs from which audio must be taken. Second click on
already selected output brakes connection with linked inputs.
Occupied input - Ambient noise compensation module and priority module
have it’s own audio mixers. Audio from this mixer can be routed to outputs
inside these modules setting. There is no possibility use the same input in the
matrix if the input is already used in ANC or priority module because of DSP
architecture. Input selection in matrix module is disabled, if inputs are already
occupied by ANC or priority module.
Input user indication - this indication show the reason why input is disabled and
can’t be used in matrix module. Orange color indicates that input is occupied
by ANC module, yellow - priority module use this input. Grey color indicates
that input is free to use.
Input button - click this button in order to link audio from this input. Selected
button change it’s color to purple. In order to skip selection or finish routing,
click on free matrix window’s area or use exit button to close the window.
Selected group - if already routed input will be clicked, all group with linked out-
puts change color to purple. Second click on selected input will automatically
unlinks all outputs linked to it. Selected group outputs can be unlinked and one
by one with mouse click on wanted unlink output. In order to add more links
click on grey color outputs.
Output button - click this button in order to link audio to this output. Selected
button change it’s color to purple. In order to skip selection or finish routing
clink on free matrix window’s area or use exit button to close window.
Auto mixer indication – it shows that marked output is routed from auto mixer
module.
ANC indication - indicates that in this output is routed audio from mixer in
ambient noise compensation module.
Exit button - close matrix window.
Software interface
USER MANUAL OCTO Digital signal processor
11
Software interface
PRIORITY
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1. Input name |2. Input level value |3. Input level fader |4. Priority input selector | 5. By pass button |6. Threshold fader |7. Depth level |
8. Attack time |9. Hold time |10. Release time |11. Output selector
USER MANUAL OCTO Digital signal processor12
Priority module gives a choice to reduce or even mute audio in case if signal is
detected in priority audio input. Module have it’s own audio mixer dedicated
to adjust audio levels which will be sent to OCTO outputs and which will be
muted or reduced by priority input. Audio inputs used in priority mixer became
occupied and can’t be used in matrix module for future routing. These occupied
inputs are disabled in matrix module and marked by yellow indication.
Input name - all OCTO audio inputs and outputs can be renamed by user. The
maximum name length is 8 symbols including letters and numbers. Name can
be changed in any menu there name window is displaying, by mouse click and
keyboard.
Input level value - it’s a numerical value which shows what audio level is set with
fader. There is possibility to set audio level directly by adding values to these
windows.
Input level fader - Designed to adjust audio level. Audio level can adjusted by
dragging the fader with mouse pointer or by clicking mouse in any area near
the fader in order to force slider jump near the pointer. In order to adjust level
gradually also can be used keyboard navigation buttons“up“ and“down”.
Attention: If audio level in Priority mixer is set higher than -72dB, input auto-
matically became disabled and can’t be used in matrix module. Please ensure
that all not used mixer inputs is set to -72dB.
Priority input selector - selector designed to set priority input according it’s
audio priority mixer signal will be muted. OCTO DSP can support one priority
input. Selected input will be disabled, also audio from this input will not be
routed to OCTO output. If necessary to have priority audio in output, link must
be made in matrix module.
Bypass - enables and disables priority module. This function can’t recover disa-
bled inputs in matrix module even if bypass is set in priority module. In order to
make occupied inputs active in matrix module, occupied inputs level must be
set to -72 dB manually.
Threshold - gives possibility to set an audio limit beyond which module starts
mute signal from priority mixer.
Depth level - specifies how much mixer volume will be reduced in case of priori-
ty activation. Max depth level mutes audio totally.
Attack time - allows to set time period through which audio level will be re-
duced from unaffected level till specified in“Depth level” setting.
Hold time - time interval of reduced or muted audio level.
Release time - allows set time period through which audio level will be in-
creased from level specified in“Depth level” setting till unaffected, normal level.
Output selector - designed to select OCTO outputs to which signal from priority
mixer will be linked.
Software interface
USER MANUAL OCTO Digital signal processor13
AUTO MIXER
Software interface
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1. Input name |2. Input level value |3. Input level fader |4. Priority off button | 5. Priority level selector and input enable switch |
6. Response time |7. Slope level |8. Bypass button |9. Output selector |10. Master level
USER MANUAL OCTO Digital signal processor
14
Automatic mixer module allow to use up to eight microphones in audio
systems and control it’s gain automatically. Auto mixer reduce non used inputs
gain and increase gain in currently used microphone input in order to reduce
microphones feedback, background noise and other extra noises influenced
by simultaneously used microphones. OCTO auto mixer offers a choice to set
priority levels for all inputs in order to have possibility set different gain adjust-
ment for different priority. Level one, highest priority microphone will get more
gain compared with lowest, eight level microphone. It helps precisely adjust
automatic mixer in any situation.
Input name - all OCTO audio inputs and outputs can be renamed by user. The
maximum name length is 8 symbols including letters and numbers. Name can
be changed in any menu there name window is displaying.
Input level value - it’s a numerical value which shows what audio level is set with
fader. There is possibility to set audio level directly by adding values to these
windows.
Input level fader - Designed to adjust audio level. Audio level can adjusted by
dragging the fader with mouse pointer or by clicking mouse in any area near
the fader in order to force slider jump near the pointer.
In order to adjust level gradually also can be used keyboard navigation buttons
“up“ and “down”.
Priority o button – Priority off button allow reset priority cue in order to set the
same priority level to each microphone. After reset highest priority level will be
set to all inputs, slope value will be reset too.
Priority level selector and input enable switch – this is multipurpose button de-
signed to enable/disable audio input in auto mixer and set it’s priority level cue.
Enabled input is displayed in green color while disabled in grey. In order to
enable audio signal please click on the window there priority level is indicated,
purple color buttons allows control priority level.
Response time – is a time when auto mixer start to response. The value can be
entered in very small steps by using up and down buttons located near the value
window.Valuecanbeentereddirectlybykeyboardor“up”and“down”navigation
buttons. Before the entering value with keyboard please click on the “Response
time”window.
Slope – parameter describing how much input gain and other auto mixer param-
eters will affected during auto adjustment. The value can be entered in the same
way as in “Response time” window.
Bypass – designed to enable or disable auto mixer module.
Output selector - designed to select OCTO outputs to which signal from auto mixer
will be linked.
Master level – give a choice to adjust a volume of all summed audio signals from
auto mixer.
Software interface
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1. Enabled input |2. Disabled input |3. Priority level increase button |4. Priority level decrease button
USER MANUAL OCTO Digital signal processor15
AMBIENT NOISE COMPENSATION
Software interface
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1. Input name |2. Input level value |3. Input level fader |4. ANC microphone selector | 5. ANC Threshold indication |6. Force gap button |
7. Bypass button |8. Max. gain selector |9. Min. gain selector |10. Ratio selector | 11. Speed selector |12. Gap threshold selector |13. Gap time
selector |14. Monitor gap | 15. Standard level selector |16. Output selector
USER MANUAL OCTO Digital signal processor16
ANC module allows automatically adjust output audio level according ambient
noise microphone. Module gives a possibility to adjust background music or
public address announcements volume depending on background noise in
public areas. It ensures that public announcements will be audible clearly all the
time.
Input name - all OCTO audio inputs and outputs can be renamed by user. The
maximum name length is 8 symbols including letters and numbers. Name can
be changed in any menu there name window is displaying.
Input level value - it’s a numerical value which shows what audio level is set
with fader. There is possibility to set audio level directly by adding values to
these windows.
Input level fader - Designed to adjust audio level. Audio level can adjusted by
dragging the fader with mouse pointer or by clicking mouse in any area near
the fader in order to force slider jump near the pointer. In order to adjust level
gradually also can be used keyboard navigation buttons“up“ and“down”.
Attention: If audio level in ANC mixer is set higher then -72dB input automati-
cally became disabled and can’t be used in matrix module. Please ensure that all
not used mixer inputs are set to -72dB.
ANC microphone selector – selector designed to set one audio input which will
be used to connect microphone for background noise measuring. Selected
input will be disabled and audio from this input will be not routed to OCTO
output in ANC module. In case if you need to have audio signal from noise
measurement microphone, it can be linked to output in matrix module.
ANC Threshold indication – indicates ANC microphones audio level taken
through noise measurement gaps. The level will be displayed until next meas-
urement.
Force gap button – allows to make a gap in order to measure background noise
manually. It mutes ANC outputs in order to prevent pick up the audio from
the speakers together with background noise. Muting duration can be set in
“Gap time”selector. It’s highly recommended to press“Force gap button”every
time after new adjustments are made in order to update ANC module status
immediately.
Software interface
USER MANUAL OCTO Digital signal processor
17
Bypass - enables and disables priority module. This function can’t recover disa-
bled inputs in matrix module even if bypass is set in priority module. In order to
make occupied inputs active in matrix module, occupied inputs level must be
set to -72 dB manually.
Max. gain selector – designed to set maximum audio level increase in ANC
module when background noise level is very high.
Min. gain selector – designed to set lowest audio level decrease in ANC module
when background noise level is very low. It’s default audio level.
Ratio – this parameter describes how much sound will be increased then ANC
module starts adjusting volume.
Speed - it’s a time period in which ANC module increase or reduce audio level.
Higher level will makes audio level adjustment smoother and less noticeable.
Highly recommended set lowest level in order to notice sound level changes
more quickly during ANC configuration.
Gap threshold – ANC module starts ignore Gap timing and starts measure
and adjust output volume continuously when OCTO input level is lower than
Gap threshold. If output signal became higher than set in Gap thresholds, ANC
module makes noise measurements according to Gap timing settings – Mutes
audio signal in order to measure background noise.
Gap time – determinates how long the audio signal will be muted. ANC mod-
ule mutes audio for specified time in order to measure the background noise. It
helps to ensure that background music and public announcement will not be
measured as noise.
Monitor gap – it’s a time period between the gaps.
Standard level - designed to set background noise value from which ANC
module will starts adjust audio level.
Output selector - designed to select OCTO outputs to which signal from priority
ANC module will be linked.
Software interface
USER MANUAL OCTO Digital signal processor18
INPUT SETTINGS
Software interface
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1. Input level value |2. Input level fader |3. Gain selector |4. Phantom power switch | 5. Test tone generator |6. Audio compressor |7. Gate
setting |8. Auto gain |9. Phase inverter |10. Input name |11. Input selector |12. Bypass button | 13. Parameter equalizer |14. Center frequency
indicator |15. Amplitude indicator |16. Bandwidth indicator
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