Hello,
Indeed, for the moment only the stimulations, signals and matrices are implemented and as you say the streamed matrix do the job. But you're right, we should see to add the spectrum .... It's not planned yet but I add it to the list.
Thibaut
Search found 264 matches
- Mon Jul 18, 2022 5:15 pm
- Forum: Boxes
- Topic: Python Box - Spectrum output
- Replies: 1
- Views: 7321
- Mon Jun 20, 2022 4:34 pm
- Forum: Designer
- Topic: .csv and .bdf file reader
- Replies: 3
- Views: 10146
Re: .csv and .bdf file reader
Hi, You have the possible Header of csv here : https://gitlab.inria.fr/openvibe/meta/- ... values-csv
Thibaut
Thibaut
- Thu Jun 16, 2022 8:14 am
- Forum: Designer
- Topic: .csv and .bdf file reader
- Replies: 3
- Views: 10146
Re: .csv and .bdf file reader
Hi,
the csv must have a specific shape to work. Maybe if you can save in gdf it's a standard format, you can use it after in OV
Thibaut
the csv must have a specific shape to work. Maybe if you can save in gdf it's a standard format, you can use it after in OV
Thibaut
- Thu Jun 16, 2022 8:10 am
- Forum: Discussion about OpenViBE
- Topic: LSL4Unity Latency
- Replies: 5
- Views: 9023
Re: LSL4Unity Latency
Technically no
- Wed Jun 01, 2022 9:44 am
- Forum: Discussion about OpenViBE
- Topic: Streamed matrix multiplexer output order
- Replies: 4
- Views: 8108
Re: Streamed matrix multiplexer output order
Hi,
The streamed matrix multiplexer sends your multiple inputs in a single stream. The only limitation is the dimension of your streams which must be identical. If you have several inputs on the same date, they will come out in the order of the inputs on N lines (you can see with a csv).
Thibaut
The streamed matrix multiplexer sends your multiple inputs in a single stream. The only limitation is the dimension of your streams which must be identical. If you have several inputs on the same date, they will come out in the order of the inputs on N lines (you can see with a csv).
Thibaut
- Mon May 30, 2022 8:34 am
- Forum: Acquisition server and drivers
- Topic: Acquisition server with Micromed
- Replies: 4
- Views: 8193
Re: Acquisition server with Micromed
Hi, I am not a network protocol expert. But in principle your piepline is good. But if you have the acquisition server on the micromed PC, I don't see why you don't have OV? Otherwise install the headset driver on the PC which already has OV. This intermediate step is mainly to test the headset and ...
- Mon May 30, 2022 8:26 am
- Forum: Discussion about OpenViBE
- Topic: LSL4Unity Latency
- Replies: 5
- Views: 9023
Re: LSL4Unity Latency
Hi,
When I got bothered with arduino. I did a lot of tests, among other things, sent a burst of information to see what exactly he received and when. and I tested different methods to forcibly flush the buffer.
Thibaut
When I got bothered with arduino. I did a lot of tests, among other things, sent a burst of information to see what exactly he received and when. and I tested different methods to forcibly flush the buffer.
Thibaut
- Wed May 18, 2022 9:14 am
- Forum: Acquisition server and drivers
- Topic: Acquisition server with Micromed
- Replies: 4
- Views: 8193
Re: Acquisition server with Micromed
Hi, For me the first step is to test everything on the same machine. If it works without problem, we can deport certain processes. However, I would recommend the use of LSL which is less restrictive for beginners (no IP addresses or other to manage just the name of a stream and must be on the same n...
- Wed May 18, 2022 9:05 am
- Forum: Discussion about OpenViBE
- Topic: LSL4Unity Latency
- Replies: 5
- Views: 9023
Re: LSL4Unity Latency
Hi,
I haven't this latency. So I can't say where is the problem.^^
THe only time I have this latency is when I communicate with other protocol (for example with arduino) and the answer was you must flush buffer but LSL example make that alone.
Thibaut
I haven't this latency. So I can't say where is the problem.^^
THe only time I have this latency is when I communicate with other protocol (for example with arduino) and the answer was you must flush buffer but LSL example make that alone.
Thibaut
- Mon May 02, 2022 8:20 am
- Forum: Designer
- Topic: Temporal filter box - Band Stop filter order (Notch)
- Replies: 1
- Views: 7787
Re: Temporal filter box - Band Stop filter order (Notch)
HI Valeria, I'm not sure Butterworth Temporal Filter is optimized for HIgh FIlter, I have test with an order of 30 it works for me (crash at 33). But the filter is "stable" (fully operational) after 40s of signal, as it takes the last signals it's good if signal is constant not the case in EEG. In o...
- Fri Apr 22, 2022 9:43 am
- Forum: Scenarios and BCI design
- Topic: OpenViBE output to Python
- Replies: 2
- Views: 7702
Re: OpenViBE output to Python
HI,
You have on Web Site Tutorial for Python Box : http://openvibe.inria.fr/tutorial-using ... -openvibe/ you can make tutorial and see how to receive/send datas
Thibaut
You have on Web Site Tutorial for Python Box : http://openvibe.inria.fr/tutorial-using ... -openvibe/ you can make tutorial and see how to receive/send datas
Thibaut
- Mon Apr 11, 2022 2:50 pm
- Forum: Scenarios and BCI design
- Topic: Feature extraction in MI-CSP
- Replies: 11
- Views: 13658
Re: Feature extraction in MI-CSP
HI,
1) 500 Samples (Depends of your epoch size).
2) It's the base of classification, The dataset change all. Too much, not enough, bad input.....
Thibaut
1) 500 Samples (Depends of your epoch size).
2) It's the base of classification, The dataset change all. Too much, not enough, bad input.....
Thibaut
- Mon Apr 11, 2022 9:50 am
- Forum: Discussion about OpenViBE
- Topic: mi-csp-3 number of features
- Replies: 1
- Views: 7118
Re: mi-csp-3 number of features
Hi Sophia, Your chunk compute is false, you must have 1s entierely so it's not (16*4) 64 but (16*3+1) 49. But It's strange because to have 1080 features vectors, it's with 54 chunks by trials (1080/20) You have 100 chunks too many. You can Test to wirte a csv with Features of one side with Stimulati...
- Mon Apr 11, 2022 9:31 am
- Forum: Scenarios and BCI design
- Topic: Feature extraction in MI-CSP
- Replies: 11
- Views: 13658
Re: Feature extraction in MI-CSP
Hi, 1)19x19 is bevause you have 19 features (channels) 2) 20 Chunks is because 20 trials with a size of 500 so you have 10000 sample (500*20) 3) You have 2160 features vector (1080 and 1080) with 6 features. (the CSP have reduce the feature number from your signal in fact 19 to 6) 4) Because it's th...
- Mon Apr 04, 2022 8:36 am
- Forum: Scenarios and BCI design
- Topic: Error in xDAWN Spatial Filter for P300 Speller
- Replies: 2
- Views: 7095
Re: Error in xDAWN Spatial Filter for P300 Speller
HI,
This bug were corrected in new version Of OpenViBE (coming soon^^) but you can use the other xdawn box (deprecated) while waiting or if you build from source code get the last developpement commit on all branch.
Thibaut
This bug were corrected in new version Of OpenViBE (coming soon^^) but you can use the other xdawn box (deprecated) while waiting or if you build from source code get the last developpement commit on all branch.
Thibaut