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| 20 May 2008 |
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58 new Users added. |
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Making the total number of ActiveTwo users listed on the BioSemi users page 240 |
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| 20 March 2008 |
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Vista drivers released |
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| BioSemi acquisition drivers now also suitable for Windows Vista. |
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| All is available at the download page. |
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| 09 August 2007 |
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ActiView 6.04 released |
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| ActiView is now compatible with direct interfacing with 'Jazz' eye tracker system model 'novo' (the Jazz novo model has increased sample-rate and extra X&Y gyro channels to determine head position) |
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| All is available at the download page. |
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| 29 March 2007 |
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ActiView 6.03 and 4 x tool released |
| 01 February 2007 |
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New Accessory |
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Light detector for direct connection to the Ergo input.
The sensor consists of a sensitive PIN diode with integrated trans impedance amplifier. This sensor can be used for measuring visual stimuli simultaneously with the physiological data (EEG). This allows checking the timing accuracy of the used stimulus setup. |
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| More information available on the accessory page. |
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| 01 February 2007 |
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New Accessory |
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Extra Aux connector with bi-polar analog input for isolated sensors.
Bi-polar analog input on the front of the AD-box for all kinds of general isolated auxiliary signals (e.g. custom made GSR measurement device, microphone, photo sensor). DIN 5-pole input connector on AD-box front-panel. Single 5 Volt power supply available (300 mA max)
- Including 2 ADC channels.
- Input range: +/- 1 Volt. |
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| More information available on the accessory page. |
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| 07 July 2006 |
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ActiView 6.00 released |
| 04 July 2006 |
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ActiView CORE released |
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Acquisition-core of the ActiView program. Made with LabVIEW 8.0.1
This allows LabVIEW developers to built their own acquisition program by just using the basic acquisition core of ActiView. The core just reads the ring-buffer and provides the incoming data and trigger/status channel as array ready for further processing. The code also gives insight in the basic setup of ActiView.
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| 29 March 2006 |
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ActiView 5.37 released |
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Bug repair: missing offset labels in speed mode 8
Bug repair: touchproof offset graphs showed wrong channels in speedmode 8
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| Download the latest ActiView on the ActiView page. |
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| 24 February 2006 |
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43 new Users added. |
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Making the total number of ActiveTwo users listed on the BioSemi users page 182 |
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| 26 January 2006 |
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Free GSR upgrade available. |
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Following up on a forum discussion about various GSR measurements methods, we have developed an alternative for the 'high-frequency' GSR method that we have used so far. The GSR module can now be delivered with either 16 Hz or 512 Hz excitation current. (Automatic detection in ActiView). The 16 Hz version displays and saves in nanoSiemens, whereas the 512 Hz version displays and saves in Ohm as before.
Read everything about it on the forum. |
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| 25 January 2006 |
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ActiView 5.36 released |
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ActiView now able to acquire data from the Jazz eye tracker and from the AIB (Analog Input Box) at the same time. |
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| Download the latest ActiView on the ActiView page. |
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| 26 September 2005 |
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ActiView 5.34 'Multi box' released |
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ActiView acquisition software is now capable of recording data simultaneously from a maximum of 4 'daisy chained' AD-boxes. This enables studies on up to 4 subjects with 128+8+sensors channels per subject. The total data output of 608 channels is interfaced by a single PC and stored into a single data file for further analysis. The daisy chain setup ensures that the data from the 4 subjects is fully synchronized. This unique feature (this technology is currently only offered by BioSemi), allows the exploration of a new field of research on multiple subjects. |
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| Download the latest ActiView on the ActiView page. |
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| 21 July 2005 |
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ActiveTwoClient added to download page. |
ActiveTwoClient is a LabVIEW program capable of receiving the data being sent over TCPIP by ActiView.
Source code in LabView and an executable are available for download at the download page. |
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| 22 may 2005 |
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ActiView 5.32 |
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| ActiView is now also available for the modern 1920x1200 resolution. This allows clear display of all 256 channels simultaneously on large high resolution monitors. |
| New feature: Tab page for Jazz eye tracker added. |
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| Download the latest ActiView on the ActiView page. |
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| 15 April 2005 |
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New Accessories |
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| Microphone to record audio stimuli and responses. A highly effective built-in spherical filter minimizes wind and breath 'pop' noise. Connects directly to the standard BioSemi ActiveTwo Ergo input on the AD-box. |
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| More information available on the accessory page. |
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| 08 April 2005 |
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ActiveTwo AD-box updated to 280 channels. |
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| The addition of 3 extra octal amplifier/converter modules brings the total number of channels of the ActiveTwo system to 280. (up from 256 on the previous version) |
| This allows the system to be configured for 256+8 electrodes and 7 additional sensors on 2 kHz. For example, you can now use the system with a 256 channel headcap + 8 FLAT electrodes + 7 sensors. In addition, the amount of available channels in higher sample rate modes (4,8 and 16 kHz) was also increased substantially. |
| The update opens even more opportunities in high density EEG and BSPM recordings. |
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| 07 April 2005 |
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ActiView 5.30 released. |
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| The Following changes have been made: |
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New feature: Suitable for ActiveTwo Mk2 (280 channels), downwards compatible with ActiveTwo Mk1. |
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New feature: Continuous battery indication on all Mk2 AD-boxes. |
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New feature: line width and cursor type selectable in CFG |
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New feature: Ergo display low-pass filter can now be switched on and off. |
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New feature: TCP/IP server added. Data can be streamed real time on the network/internet. |
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| 05 April 2005 |
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New Accessories |
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Response switches for direct connection to the AUX (front) connectors on the AD-box.
The setup with the response switches connected directly to the AD-box ensures accurate timing of the response moments (pulse is mixed directly with the incoming EEG signals) as well as optimal isolation of the subject (no grounded equipment near the subject). |
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| More information available on the accessory page. |
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| The Presentation cable connects the stimulation PC (parallel port) with the trigger input/output connector (37 pin female sub-D) of the BioSemi USB receiver. |
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| More information available on the accessory page. |
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| 21 March 2005 |
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New scientific papers added on the research page. |
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| 2 new papers by Peter Praamstra (university of Birmingham) added to our research site. During 4years of using ActiveOne and ActiveTwo systems, Peter Praamstra's research resulted in no less then 8 papers. If you want your paper about research involving BioSemi products added to our website, please do not forget to sent us the reference. |
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| 08 February 2005 |
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New Accessory: Jazz Eyetracker. |
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The Jazz eye tracker system is a development of a Polish academic research group, led by Prof. Ober.
A special 'synchronic' version has been made on OEM basis for BioSemi for interfacing directly with the ActiveTwo.
More info about the Jazz Eyetracker can be found on the accessory page. |
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| 19 January 2005 |
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25 new Users added. |
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Making the total number of ActiveTwo users listed on the BioSemi users page 84 |
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| 10 November 2004 |
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New utility to decimate (downsample) .BDF files available for download. |
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This utility can be used to decimate (downsample) your BDF file into a smaller file.
Sample rate and bandwidth can be reduced by a factor of 2 or 4 or 8. A third order sinc filter is used to prevent aliasing. |
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| 10 July 2004 |
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28 new Users added. |
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Making the total number of ActiveTwo users listed on the BioSemi users page 87 |
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| 09 July 2004 |
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Pictures of 128 and 256 channel caps added on the headcap page. |
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| 06 July 2004 |
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Electrode position coordinates file available for download. |
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Polar coordinates for all standard electrode caps (16, 32, 64, 128, 160, 256) are now downloadable in excel file format.
You can use these coordinates in your software to process BDF files. |
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| 28 June 2004 |
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ActiView 5.21 released. |
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| The Following changes have been made: |
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Compiled in new version LabVIEW 7.1 |
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New feature: Decimate option enabled in all speedmode's (previously only available in mode 0 and 4) |
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New feature: Front panel connected response switches (connected to Aux/ERGO) can be routed to Trig 9 and 10 by a setting in the CFG file (RespSwitch = 0 or 1) |
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New feature: 1V, 2V and 4V options added to Y-scale selector on AIB tab page |
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| 18 May 2004 |
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ActiView 5.19 released. |
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| The Following changes have been made: |
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New feature: Open ActiView+CFG file with a Windows shortcut. With this new feature, it is possible to make Windows shortcuts which automatically open ActiView with a specific CFG file. |
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Bug repaired: When only GSR1 was selected and a CFG file with this setting is saved and loaded again, then the 'Aux chart' was wrongly disabled. |
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Bug repaired: When the 'Aux chart' was disabled (by editing the CFG file manually), then with saving the sensors 'as displayed', the triggers were saved in channel 2 instead of in the trigger channel (last channel). Contact BioSemi for having your files repaired, if needed. |
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AIB offset graph scaling bug repaired. |
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| 23 April 2004 |
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New FAQ question added. |
| 01 April 2004 |
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BioSemi discussion forum online. |
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The new BioSemi discussion forum is now on-line at http://www.biosemi.nl/forum
We hope that the forum will quickly grow into a lively platform for discussions related to scientific research with BioSemi products. In the mean time, we would appreciate all your suggestions for improvements to the forum web site, please do not hesitate to email your comments. |
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| 25 March 2004 |
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New dealer for Russia: Polus Ltd. |
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BioSemi is proud to announce our new dealer in Russia. |
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| 02 February 2004 |
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ActiView 5.16 released. |
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| The Following changes have been made: |
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High Resolution version introduced for 1600x1200. (This version only displays correctly on monitors with a resolution of 1600x1200 or larger). The Low Resolution version (1280x1028) has the same functionality and remains also available. |
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New option to automatically start a new file, when the selected file limit is reached.
This allows experiments with more then 2GByte of data. In addition, you can choose to save an experiment in several smaller files. |
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Various code optimalizations for increased speed of saving to disk. |
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| 22 January 2004 |
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3 new utilities available for download. |
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BDF to EDF converter  
Some brain analyzing products are technical not capable of reading high resolution 24 bit BDF files with full DC data. You can use this utility for converting your BDF files to 16 bit AC (high-passed) EDF files. |
BDFreader
This simple file reader can be used to check your recorded BDF files. |
FileCropper
This simple utility can be used to crop your large BDF files into smaller files.
It also can be used to repair BDF files with a wrong length value written in the header. |
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| 08 January 2004 |
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New dealer for Japan: Mackie 3M Specialties. |
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BioSemi is proud to announce our new dealer in Japan. |
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| 07 January 2004 |
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ActiView 5.14 released. |
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| The Following changes have been made: |
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During saving, the number of mono polar displayed channels could still be changed with the keyboard shortcuts (Page up/down). In 5.14, the Page up/down keyboard shortcuts have been disabled during saving. |
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To prevent the user from accidentally closing the acquisition during saving, the ActiView program window has been made "not closeable" as long as ActiView is acquiring data. This prevents corrupted header errors (-1, unknown length) and failures from closing the USB drivers not properly. |
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Keyboard shortcuts disabled when ActiView window is not active. |
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Keyboard shortcuts disabled when a numerical control is active. |
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Several LabVIEW code improvements: (Code in orange panel 2 simplified, Code cleaned up: error initialization constants were hidden behind outer while loop). |
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With the function keys F1-F8 it is now possible to set markers during acquisition.
The function keys F1-F8 have been "orred" with triggers 9-16, so the external triggers still work.
Function keys can thus be used to set markers in the file |
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| 04 December 2003 |
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New FAQ question added. |
| 03 December 2003 |
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13 new Users added. |
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Making the total number of ActiveTwo users listed on the BioSemi users page 59 |
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| 24 November 2003 |
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ActiView 5.13 released. |
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ActiView versions 5 and higher are based on LabVIEW 7.0 and the new USB2 receiver.
The Following changes have been made: |
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- On/off switch for "DC reset at screen start" added to AIB chart.
- Bug in "Pause Save" button repaired (this button needed multiple clicks on very fast PCs). |
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| 31 October 2003 |
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ActiView 5.12 released. |
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ActiView versions 5 and higher are based on LabVIEW 7.0 and the new USB2 receiver.
The Following changes have been made: |
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Keyboard shortcuts added:
"Enter" --> Start the acquisition.
"Home" --> Baseline reset (display only).
" Arrow up/down" --> Higher/lower gain.
"Arrow left/right" --> Tab-page to the left/right.
"Page up/down" --> Next/previous group of channels. |
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"No reference" pop-up window notice has been replaced by flashing Reference selection window. |
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AIB Tab-page can display/save the data in mono polar or bipolar mode. |
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| 28 October 2003 |
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2 New FAQ questions added. |
| 08 October 2003 |
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Research page papers updated. |
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| On the Research-Papers page it's now possible to view and download published papers from researchers who use BioSemi equipment. |
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| 24 September 2003 |
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G-Tec now supports .BDF file format. |
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All the software from G-Tec is now able to read the BioSemi .BDF file format.
g.BSanalyze is an interactive environment for multimodal biosignal data processing in the field of life sciences. The investigation of patterns and signal features of biosignals allows to observe non invasively brain, heart- and muscle functions and disfunctions. |
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| 29 August 2003 |
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New dealer for Switzerland/Australia/New Zealand: Neurospec |
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BioSemi is proud to announce this new dealer for EEG, EMG and ECG products. |
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| 27 August 2003 |
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NEW PRODUCT: USB2 receiver |
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As usual, BioSemi is the first in introducing innovative products.
BioSemi is the first company shipping it's systems with an USB2 interface. |
Plug&Play and easy driver installation. (no cards to install, just plug the USB2 cable in the PC)
The USB2 receiver makes higher data rates possible. (288 channels @ 4KHz samplerate 24bit/channel)
The new Receiver allows direct interface with notebooks. In combination with the compact, light-weight battery-powered ActiveTwo with Active Electrodes (eliminated the need for a Faraday Cage), this is the only real portable 256 channel EEG/ECG/EMG laboratory available. |
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| Also, as usual, BioSemi offers ActiveTwo customers attractive upgrade prices&possibilities. For 1400 Euro you can upgrade to USB2 and have all the advantages of doing acquisition on your notebook. |
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| 22 August 2003 |
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ActiView 5.03 released. (for new USB2 interface) |
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ActiView versions 5 and higher are based on LabVIEW 7.0 and the new USB2 receiver.
The Following changes have been made: |
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Version only compatible with USB2 interface |
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In the .CFG file an extra setting has been introduced: "ElecGain".
When the system has been equipped with modules with a gain of 31,25nV/bit then set "ElecGain=0" (standard)
When the system has been equipped with modules with a gain of 125nV/bit then set "ElecGain=1" (BSM applications) |
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Warning "for research only" added |
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File limit bug corrected (program could run into 2GB Windows file limit before internal limit triggered proper closing of the file) |
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Window resized to dimensions available in Windows XP (smaller height than classic look) |
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Handling of arrays changed for more efficiency |
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| 04 July 2003 |
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Persyst now supports .BDF file format. |
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All the software from the Persyst development corporation now is able to read the BioSemi .BDF file format. Also, all the trigger pulses generated by the BioSemi ActiveTwo system can be read straight into their software.
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| 25 June 2003 |
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ActiView 4.03 released. |
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ActiView version 4 and higher are based on LabVIEW 7.0 and thus need the new LabVIEW
RunTimeEngine 7.0. ActiView is the acquisition program for the ActiveTwo system. It is an open source program written in LabVIEW 7.0 New features are: |
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Source code upgraded to LabVIEW 7.0 (RunTimeEngine 7.0 or higher is needed to run
ActiView versions of 4.0 or higher). |
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Free channel selections now work with SHFT and CTRL, according to the standard
Windows convention. |
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Reset of LP filters at every screen start removed, processor load by filters decreased. |
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Low pass filter added to online average. |
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| 04 June 2003 |
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ActiView 3.44 released. |
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| ActiView is the acquisition program for the ActiveTwo system. It is an open source program written in LabVIEW 6.1 New features are: |
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Saving to file can now be started and stopped by 2 reserved trigger codes. |
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On-line ERP result calculation. |
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Selectable screen lengths. |
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15 May 2003 |
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"Pin-type" product page updated. |
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The BioSemi "Pin-type" Active electrode has been designed especially for mounting in BioSemi headcap's. The electrode has a sintered Ag-AgCl electrode tip, providing very low noise, low offset voltages and very stable DC performance. |
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| 24 February 2003 |
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Auditory Brainstem Response measurement ABR. |
| ActiveTwo Application example: Auditory Brainstem Response (ABR) measurement. |
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| The high sample rate, high resolution and precise trigger timing makes the ActiveTwo very suitable for the demanding ABR measurement. Yet another example of the ActiveTwo's versatility. Read more.... |
| 04 December 2002 |
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"Ultra Flat" product page updated. |
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The BioSemi UltraFlat Active electrode (11mm width, 17mm length, 4.5mm height) has been designed for all Body-surface applications. The flat shape makes the UltraFlat ideal for all EMG and ECG body surface measurements and also for EEG applications where the use of a headcap is less practical e.g.: sleep research. |
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| 12 November 2002 |
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NEW PRODUCT: Analog Input Box. |
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The Analog Input Box (AIB) is an extra option to acquire additional analog input signals which have to be kept isolated from the subject. For example mains powered equipment. Up to 32 channels can be acquired simultaneously with up to 256 channels from the AD-box connected to the subject. A first fiber carries the data coming from the subject connected AD-box to the AIB, then a second fiber with the combined data goes from the AIB to the receiver where the total 288 channels are processed. |
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| 06 November 2002 |
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New dealer for Spain. |
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Starlab Spain has been appointed as the dealer in Spain for BioSemi. |
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| 16 August 2002 |
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First full 256 channel ActiveTwo system installed. |
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The world's first 256 channel EEG system with active electrodes is now operational at the Biomedical Imaging Lab at the University of Houston. Director Prof. George Zouridakis has stimulated BioSemi to develop this technological breakthrough for his newly found laboratory. |
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| 13 March 2002 |
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BioSemi introduces BDF (BioSemi Data Format) |
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The BDF file format is the same as the EDF  file format except with 24 bit data records. |
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