Search found 27 matches

by RadhaKumari
Tue Mar 19, 2019 12:59 pm
Forum: Acquisition server and drivers
Topic: Emotiv EPOC
Replies: 1
Views: 915

Emotiv EPOC

I am using the 32-bit Open Vibe 2.2.0 on my 64 bit Windows Machine, and the emotiv SDK community edition 3.3.3 to connect to Emotiv. While the connection is successful, the acquisition server stops responding after I press play. The error is the following: Screenshot (220).png Now, having read throu...
by RadhaKumari
Tue Feb 26, 2019 6:42 pm
Forum: Acquisition server and drivers
Topic: device drift is too high
Replies: 2
Views: 1282

device drift is too high

I am using LSL for accepting LSL stream from Open BCI GUI. The drift is too high and keeps increasing, doesn't stop increasing, can go to 1700ms and still increases. What is the problem here? And is there a solution? I assumed LSL is good for time-synchronization, but this demonstrates otherwise. My...
by RadhaKumari
Fri Jan 18, 2019 4:32 pm
Forum: Boxes
Topic: display discontinuous data
Replies: 1
Views: 692

display discontinuous data

I am acquiring data , epoching it , processing it (epoch again, power, average etc etc) and finally saving it. When I try to visualize the processed data from a signal display box or oscilloscope box, the box waits for a long time(possibly the time of first epoch of >1min duration) and then shows me...
by RadhaKumari
Thu Jan 17, 2019 3:43 pm
Forum: Boxes
Topic: python animation
Replies: 1
Views: 733

python animation

I have a gauge animation indicating the power received. Ideally it should work in real-time. But, after initializing it and expecting it to change value as the program proceeds , I am stuck because the stimulations won't start until I close the figure(which was supposed to change values as the progr...
by RadhaKumari
Thu Jan 10, 2019 10:14 am
Forum: Box and application development
Topic: Player cannot reach real time(Python)
Replies: 4
Views: 1187

Re: Player cannot reach real time(Python)

To clarify my problem more, here is my process function: def process(self): for chunkIndex in range( len(self.input[0]) ): #print 'chunk Index' , chunkIndex if ( (len(self.store) % 30) == 1 or len(self.store)==0): self.active=0 if(type(self.input[0][chunkIndex]) == OVSignalHeader): #print 'type 1' s...
by RadhaKumari
Thu Jan 10, 2019 10:08 am
Forum: Box and application development
Topic: Player cannot reach real time(Python)
Replies: 4
Views: 1187

Re: Player cannot reach real time(Python)

Hi
My problem is I cannot send the instructions at the time specified because it takes 10 seconds to run the whole sequence, but chunks are coming in so before these set of commands get executed, the script would run again as chunks keep coming.
by RadhaKumari
Wed Jan 09, 2019 4:45 pm
Forum: Box and application development
Topic: Player cannot reach real time(Python)
Replies: 4
Views: 1187

Player cannot reach real time(Python)

I have a python script that sends commands over serial protocol to an external device after certain conditions have been fulfilled. The commands are sent over a period of 10 seconds at particular times. Naturally, the python code would not stop and rather run on every chunk received, making the task...
by RadhaKumari
Wed Dec 19, 2018 7:33 pm
Forum: Box and application development
Topic: Video in open vibe
Replies: 1
Views: 975

Video in open vibe

I am creating a BCI scenario where I play a video after a certain stimulus, and close it on another stimulus, using Run Command. The video generally plays in full screen. I want to see the powers associated with different events in the video, and have the signal display. But, since the video plays i...
by RadhaKumari
Wed Dec 19, 2018 10:38 am
Forum: Box and application development
Topic: Communicate with an external device over serial protocol
Replies: 2
Views: 1111

Re: Communicate with an external device over serial protocol

Hey ! I went with the latter. I just wondered if there was something else I didn't know about.

Thank You
by RadhaKumari
Wed Dec 12, 2018 3:44 pm
Forum: Box and application development
Topic: Communicate with an external device over serial protocol
Replies: 2
Views: 1111

Communicate with an external device over serial protocol

I have an external device that can receive instructions over serial protocol. I have a C++ code , whose functions can be used to send instructions to the device(the code encodes parameters to bits and corresponding recognizable commands and has functions to send instructions directly taking in param...
by RadhaKumari
Wed Dec 12, 2018 10:33 am
Forum: Help for building the software
Topic: Build error: Windows 10, 64 bit, Visual Studio Express 2013
Replies: 4
Views: 1489

Re: Build error: Windows 10, 64 bit, Visual Studio Express 2

Before seeing this message, I installed dependencies and built again, with Python 3 in my environment variables first.
Launching through cmd works without glitches. Thanks. However, the sound player doesn't work with 64 bit windows 10, have posted it as other problem before.
by RadhaKumari
Tue Dec 11, 2018 12:05 am
Forum: Help for building the software
Topic: Build error: Windows 10, 64 bit, Visual Studio Express 2013
Replies: 4
Views: 1489

Re: Build error: Windows 10, 64 bit, Visual Studio Express 2

I was able to install dependencies and build, following your steps. But, running open vibe acquisition server gives me the error: Screenshot (78).png Also, running open vibe designer runs Open Vibe 0.0.0 and also many boxes are red(I suppose not installed): I downloaded the source files from here:ht...
by RadhaKumari
Sun Dec 09, 2018 10:59 pm
Forum: Help for building the software
Topic: Build error: Windows 10, 64 bit, Visual Studio Express 2013
Replies: 4
Views: 1489

Build error: Windows 10, 64 bit, Visual Studio Express 2013

I am trying to build Open Vibe from source. I was able to install dependencies successfully. However , building it gives me errors. I tried to play with environment variables to rectify errros. But it doesn't seem to work. Am I missing something? I have gone through posts on different forums , but d...
by RadhaKumari
Sun Dec 09, 2018 6:54 pm
Forum: Help for building the software
Topic: Windows 10 - ninja: error: loading 'build.ninja' : No
Replies: 18
Views: 11429

Re: Windows 10 - ninja: error: loading 'build.ninja' : No

I am facing the same errors, I have Visual Studio enterprise 2017