[ Multichannel System User Manual PDF from 2008 ]
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Revision 1.
Address:
Articulate Instruments Limited
Queen Margaret Campus, Queen Margaret University Drive
Musselburgh EH21 6UU
UK
Phone:0131 474 0000
Fax:0131 474 0001
Email:[email protected]
Information in this document is subject to change without notice and does not represent a commitment on the part of Articulate Instruments Ltd. The software described in this document is furnished under a license agreement and may be used and copied only in accordance with the terms of the license agreement. It is against the law to copy the software on any other medium except as specifically allowed in the license agreement. No part of this manual may be published, reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose without the written permission of Articulate Instruments Ltd.
Copyright 2003-2008 Articulate Instruments Ltd 3
Information in this document is subject to change without notice and does not represent a commitment on the part of Articulate Instruments Ltd. The software described in this document is furnished under a license agreement and may be used and copied only in accordance with the terms of the license agreement. It is against the law to copy the software on any other medium except as specifically allowed in the license agreement. The licensee may make one copy of the software for backup purposes. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose without the written permission of Articulate Instruments Ltd.
Definitions.....................................................................................................
A/D Analogue to Digital LED Light Emitting Diode
Articulate instruments Ltd warrants the Multichannel Breakout Box BRK and against defects in materials and workmanship for a period of one year from receipt by the user. During that warranty period, Articulate Instruments Ltd will either, at its option, repair or replace products, which prove to be defective. Articulate Instruments Ltd can accept no responsibility if the Breakout Box BRK2 is used other than in accordance with the instructions supplied. This warranty applies to the initial purchaser only and is not transferable. Full Terms and Conditions are contained in the Warranty terms and Conditions enclosed with the system.
Upon receipt of your Multichannel system, it should be examined immediately for any evidence of damage. Damaged shipments should be reported promptly to the carrier, who is normally liable for such damage. All documentation, airway bills and packing materials should be retained in order to establish claims. After notifying the carrier of shipping damage, please also advise Articulate Instruments so that we may assist in damage claims and supply replacement equipment if necessary.
The PC used with the Multichannel system should be approved to the appropriate safety standard for IT equipment, i.e. IEC 60950, or its national variants, EN 60950, UL 1950...
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The PC does not require a soundcard as up to eight channels including audio can be recorded through the supplied ADLINK DAQ 2213 A/D card.
The minimum recommended screen resolution is 800 x 600 for satisfactory display of numerous analysis windows with colour depth > 256 bits
Memory......................................................................................................
Audio data are stored in computer memory during recording and so the amount of memory determines the length of recording that can be made. 128Mbytes memory or greater is recommended for Windows 95/98/2000/NT and a minimum of 256Mbytes of memory is recommended for Windows XP.
The size of the hard disk simply limits the amount of data that can be stored. One minute of single channel (22050Hz mono) data takes up 2.646Mbytes of disk. A 20Gbyte hard disk will therefore have room for more than 25 hours of 4-channel data.
It is highly recommended that the computer has a backup/archiving device such as a writeable CDROM drive (CD-RW) or that the computer can be connected to a network with such a device. Data should be backed up on a regular basis in case the computer develops a problem that results in data being lost.
The European Union has introduced directives requiring CE marks on devices.
Non medical devices marked with indicate compliance with relevant directives. Electropalatography systems (WinEPG/PTU) sold as medical devices comply with EEC Council Directive 93/42/EEC of 14 June 1993 concerning Medical Devices. 0473 applies to class IIa.
NOTE: The Breakout BOX BRK2 is not CE marked. It simply distributes the analogue and digital channels provided by the DAQ 2213 PCI A/D card.
Using the shielded cable supplied with the system ensures that you maintain the appropriate EMC classification for the intended environment.
Electromagnetic interference (EMI) is any signal or emission, radiated in free space or conducted along power or signal leads, that endangers the
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functioning of a radio navigation or other safety service or seriously degrades, obstructs, or repeatedly interrupts a licensed radio communications service.
WARNING : To Prevent Fire or Shock Hazard, Do not expose this system to rain or moisture.
This equipment has been designed and manufactured to meet international safety standards but, like any electrical equipment, care must be taken if you are to obtain the best results and safety is assured.
DO read the operating instructions before you attempt to use the equipment DO ensure that all electrical connections (including leads and interconnections between pieces of equipment ) are properly made and in accordance with manufacturer’s instructions. DO consult the manufacturer if you are ever in doubt about the installation, operation or safety of your system. DON’T continue to operate the equipment if you are in doubt about it working normally, or if it is damaged in any way. DON’T remove any fixed cover as this may expose dangerous voltages. DON’T leave equipment switched on when it is unattended. Switch off using the switch on the SPI unit
NEVER let anyone, especially children, push anything into holes, slots or any other opening in the cases. This could result in a fatal electrical shock.
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− Stackable. The Breakout Box BRK2 is physically compatible with
the WinEPG system and Laryngograph system and can be stacked
above or below these systems.
− Multiple connectors. All eight analogue input channels have BNC
connectors. The first six channels have additional XLR, 6.35mm
Jack sockets. Two BNC to RCA phono are supplied.
− Software selectable Line-level Input. The gain of each channel
can be selected individually to be +/-1.25,2.5,5.0 or 10V.
− Noise reduction. All channels are wired as differential inputs to
reduce noise. XLR connectors are wired as balanced inputs. All
signal cables are screened.
The Multichannel system includes the following supplied components : − Breakout Box − ADLINK DAQ 2213 A/D PCI card − 2 68-way cables to connect the breakout box to the DAQ 2213
To operate the system the following additional items are required: − Windows 9x/2000/NT/XP computer with free PCI socket − A 220-240V or 110V main power supply
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Figure 1 Multichannel hardware
The DAQ 2213 A/D card (Figure 1 A ) manufactured by ADLINK must be installed in a free PCI slot in the computer. And is connected to the breakout box using the 68-way cables provided (Figure 1 B )
The purpose of the breakout box (figure 1 C ) is to provide convenient connection options to the A/D card. It allows access to all 8 differential channels available on the DAQ 2213 as well as providing an indication of which channels are activated by the software. It also provides straight-through connection for 4 video channels.
The rear panel has two 68-way sockets marked CN1 and CN2 (Figure 2 A and B ) to match the ID of the DAQ 2213 output sockets. CN1 carries the analogue signals. CN2 carries the digital data used to set the channel activation LEDs (Figure 3 A ). Two video output BNC sockets (Figure 2 C ) are available for connection to a video acquisition card (supplied separately).
A. ADLINK DAQ 2213
A/D PCI card
B. 2x 1m
68-Way cables
C. BRK2 Breakout Box
D. BNC-to-RCA Phono
adapter
F. Mini-Din sync cable E. 1m BNC cable
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A BNC socket marked “Trig” (Figure 2 D ) supplies a TTL level trigger signal generated by the EPG. The falling edge of the trigger pulse corresponds to the first EPG palate. It can be used to trigger other instruments or to generate a start tone. A 6-way mini-din socket marked “EPG Sync in” (Figure 2 E ) provides convenient rear panel access for connection to the WinEPG system sync output. A short BNC cable is provided for this connection. The socket marked VICON remote (Figure 2 F ) will connect to the J1 remote socket on a VICON point tracking system. The cable carries the start and stop signals from the breakout box which are generated by Port C2 and Port C respectively and returns the horizontal camera sync pulse sequence which can be used to align the VICON frames. The socket (Figure 2 G ) marked VICON sync out provides access to this signal.
A BNC socket market “Trig” is not currently connected to anything and is available for future expansion.
Figure 2 Rear Panel of Breakout Box
The front panel of the breakout box provides access to the first six analogue input channels. Each of these six channels has: a) A channel “active” LED (Figure 3 A ) which illuminates when the software has selected the channel as an active input. b) A dual XLR/jack type socket wired for balanced input c) A BNC socket
A further two channels are accessible from the rear panel via BNC sockets.
C. Video output
A. CN2 68-way
socket
B. CN1 68-way
socket
E. Sync/Channel
1 input
D. Trig (EPG
Beep)
F. VICON remote
connection
G. VICON sync
output
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The front panel also has two BNC sockets for video inputs which are connected straight through to the video sockets on the rear panel and are provided for convenience.
Figure 3 Front Panel of Breakout Box
Please read through these steps carefully and completely before you assemble the system. At the end of the process if you can record and playback speech and record and display EPG patterns on the computer, the system is correctly installed and configured.
- Install the DAQ 2213 A/D card according to the instructions provided by ADLINK.
- Connect one 68-way cable (Figure 1 B ) between the connector marked ‘CN1’ on the rear of the breakout box and the connector marked ‘CN1’ on the DAQ 2213 card and secure in place with the screw lock. Repeat this process for the second 68-way cable marked ‘CN2’
- If combining WinEPG with the multichannel system, use the Mini-din sync cable (Figure 1 F ) to link the sync socket on the rear panel of the breakout box with the ‘sync out’ socket on the WinEPG SPI unit (Figure 4)
A. LED
channel active
indicator
B. BNC socket
channel input
C. XLR/Jack
dual socket
D. Video input
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Figure 4 Connecting WinEPG
4. Run ‘Articulate Assistant™’ software on the PC.
Important : Note that the XLR Jack and BNC sockets for each channel
are wired together. Only one socket should be used for a given channel.
If WinEPG is connected to channel 1 via the sync socket on the rear
then nothing should be connected to channel 1 on the front panel.
Close any program you have running on your computer. Insert the ‘Articulate Assistant™’ CDROM Use ‘Windows Explorer’ or similar to find the install.exe file on your CDROM Drive and double click. The software will load automatically.
Notice : For convenience, be sure to install the Articulate Assistant™
software (either Standard or Advanced version) before connecting the
USB key.
To install the software, place the Setup CD in the CD player of your PC and run ‘Setup.exe’ from your CDROM drive. This will install the Articulate Assistant™ software under the C: drive in a folder named ‘ArticAsst’. The program can be run from the Windows Taskbar Start Menu (‘ Start:Programs:ArticAsst:ArticAsst ’).
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-------Version 2.09 and above no longer require a registration code--------
Articulate Assistant™ software must be registered before it can be used. To register, run ‘ArticAsst.exe’ and click on the ‘ Help:Registration... ’ menu to show the following dialogue box.
Then, if you agree to the license terms, click on the Register button to bring up the Registration Dialogue box (Figure 5).
Figure 5 Registration Dialogue Box
Type into the ‘Name’ box the name of the individual, company or institution to which this copy of the program will be registered. Then contact the manufacturer at the email address given at the end of this manual to obtain the registration ‘Number’. Note: The Name and Number must typed in exactly as provided by the manufacturer.
Switch on the SPI by operating the switch on its rear panel. Observe the front panel LED (Figure 3 J ) marked ‘POWER’ to confirm that the SPI is powered. Observe the similar LED on the front panel of the EPG3 scanner to confirm that the EPG3 scanner is powered.
Run ‘Articulate Assistant Advanced™’ software. The display should look similar to Figure 6.
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Figure 6 Record Task Window
The contact area should provide live feedback of contact between the tongue and the EPG palate. If the display does not respond, check that the handgrip is plugged in and being gripped by the client. Try pressing the BLACK RESET button on the rear of the SPI. You should hear a beep after 6 seconds and the palate display should go live. If there is still no response it may be that the communication port parameters supplied with the software are incorrect and need to be changed.
To change the communication port setting: The COM port needs to be set to the same value as determined shown in Windows Device manager for the ‘ Prolific USB-to-Serial Comm Port ’.
A. Caption bar
B. Menu/Task
bar
D. Waveform
display
C. Prompt
display
E. Palates
display
F. Prompts list
G. Button bar
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Figure 7 Windows Device Manager showing COM4 is active.
Select the menu option ‘Options’ then select the submenu option ‘Comms...’. Set the ‘COM port’ to the same setting as found in the device manager e.g. For the example in 7 ‘COM4’. Alternatively, try setting the ‘COM port’ to COM4. If it reads ‘No port’ then try ‘COM5’.. If it still reads ‘No port’ then try ‘COM6’,’COM7’ and ‘COM8’. ...’COM20’.
Figure 8 Com port selection dialogue
TIP: If an EPG palate is not available it is possible to check
that the system is working by stroking the multiplexer
socket with a coin whilst holding the chrome handgrip.
If the EPG display remains unresponsive after following the instructions above then please contact Articulate Instruments for advice.
Once the EPG display is configured and responds to tongue contact, observe the display when in use by an EPG palate wearer. The contacts should switch on and off cleanly as the tongue makes and breaks contact. If the contacts appear to flicker or stay on after the tongue is removed from the palate then
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follow the instructions for an on-site calibration check in the Technical Details section 3 of this manual.
To select and configure the 8 A/D channels select menu “Options|Audio...”. The audio dialogue (Figure 9) allows either an ordinary soundcard or the ADLINK DAQ 2213 A to D card to be selected for audio (and additional signal
inputs)
Once the DAQ 2213 has been selected the A to D tab can be selected providing the following options and displays.
- Sample rate: Can be set to any value but note that there is only one A/D converter in the DAQ 2213 and each of the 8 channels is multiplexed into this single converter. The maximum sample rate of the converter is 250kHz so if all 8 channels are used the maximum sample rate for each channel is 31.25kHz.
- Actual Value: Shows the rate the software will sample at. This value will differ from the requested sample rate (above) if the rate is selected to be too high (sample_rate > 40,000,000/(160 x Number_of_channels) or too low (sample_rate < 40,000,000/16777215) or if the chosen rate is not an exact divisor of the 40MHz A/D clock.
- Num channels: Select from 1 to 8 channels. If WinEPG is to be used with the multichannel system then the sync output from the EPG must be connected to Channel1/sync. Channels must be used sequentially. I.e. if 4 signals are to be recorded they must be connected to channels 1-4. NOTE: Always have an input for all of the selected channels. Unconnected inputs will record data from the previous channel causing confusion.
- Bits per sample: Always 16 bits
- Buf size: Size of the double buffer (in milliseconds) into which the data is recorded (Default 200ms). Try a smaller value to make the live waveform display smoother but beware of making it too small as this will result in lost waveform samples if the buffer fills up before the PC is ready to read it.
- Input range: Set the range of each of the selected channels individually
Highlight each channel and use the dropdown
listbox below to select the desired input range. Choose an option
ending “diff” as the breakout box is wired for differential input.
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NOTE: If WinEPG sync signal is used then channel 1
should be set to ‘–5..+5V diff’.
Tick the box next to the channel to remove (ZERO) the dc offset.
Figure 9 Audio dialogue box (A to D tab selected)
WinEPG system supplied with the Multichannel System is modified from standard. The WinEPG can provide either 100Hz or 200Hz sample rate. To manage the higher rate the RS232 communication operates at 57600 Baud. The EPG sample rate can be set in the “options|sync...” dialogue. Although the sample rate can be set to any value the nominal sample rate will be set to either 100 or 200 according to which is closest.
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Figure 10 Setting the EPG sample rate and sync method
The synchronisation option should be set to “ Sync to channel ”. If a soundcard is used instead of the multichannel A/D then refer to the WinEPG manual for connection options.
The system monitors to check for missed samples. If missing samples are
detected then the following dialogue box will appear. In this case, first check that the Channel 1 gain is set to ‘-5 to +5V diff’ Lower values may cause the signal to clip and cause errors. Also check that the EPG sample rate is set to 200.000 or 100..
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See the NuDAQ DAQ-2213/2214 User guide supplied with the card for technical details.
Figure 11 Breakout Box Block Diagram
The breakout box is wired with a BNC socket for each channel. The pin of the BNC socket is connected to AixH. The shell of the BNC socket is connected to AIxL and also to the Analogue ground (AIGND) on the DAQ2213 via a 100kΩ resistor. The first 6 channels are also wired to an XLR/Stereo Jack. The XLR/Jack is wired as follows: XLR Pin1 – Jack Sleeve - AIGND XLR Pin2 – Jack Tip - AIxH XLR Pin3 – Jack Ring - AIxL
4 Troubleshooting.......................................................................................
Q. After I’ve recorded a sentence, the prompt moves on to the next sentence. I want to record several repetitions of the same sentence. How do I get it to stop doing this? A. Find the checkbox marked ‘Auto Advance’ in the panel at the bottom of the Record Task Window and click on it so that the tick disappears.
Q. What is the clipboard. A. The clipboard is a bit of memory used by the Windows operating system to store images and text. The images and text are then available for ‘pasting’ into any application running on the PC.
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If you are experiencing problems with the hardware or software which are not covered in this manual, you can contact
Alan Wrench Articulate Instruments Limited Queen Margaret Campus Queen Margaret University Drive Musselburgh EH21 6UU
Tel: +44 131 474 0000 Fax: +44 131 474 0001 Email: [email protected] Www: http://www.articulateinstruments.com
The website provides downloads, a discussion board, details on a range of products and a customer support section (for which you need to use the password “WinEPGuser”) with updated manuals.
We are always pleased to receive suggestions for improving the Multichannel system and the Articulate Assistant™ software.
Revision Date Notes 1.04 30/09/09 Revised to be compatible with BRK2 model.
- Copyright 2003-2008 Articulate Instruments Ltd
- Copyright 2003-2008 Articulate Instruments Ltd
- 1 Preliminaries
- Definitions.....................................................................................................
- Warranty
- Inspection
- Computer Recommendations
- Safety
- Sound card
- Video display
- Memory......................................................................................................
- Hard disk
- Data backup device
- CE Marks on electrical devices.....................................................................
- General EMC (Electromagnetic Compatibility) Guidelines
- Shielded serial cable
- Electromagnetic Interference.....................................................................
- Safety Precautions
- Some Do’s and Don’ts on the Safe Use of the WinEPG™ System
- 2 Getting Started
- Hardware System Features
- Multichannel System Description..................................................................
- DAQ 2213 A/D card
- Breakout Box
- Installation
- Multichannel Hardware
- Software Installation
- System Setup
- Installing Articulate Assistant™ Software
- Registering Articulate Assistant™ Software
- Checking the Multichannel display function and accuracy.......................
- Setting Multichannel inputs......................................................................
- WinEPG Supplementary information
- 3 Technical Details
- ADLink DAQ 2213 A to D card
- Multichannel Breakout box
- 4 Troubleshooting.......................................................................................
- Frequently Asked Questions.......................................................................
- Contact
- Copyright 2003-2008 Articulate Instruments Ltd
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