search

openyou / emokit

Open source driver for accessing raw data from the Emotiv EPOC EEG headset
http://www.openyou.org
Other
522 stars 236 forks source link

Sampling rate too low #192

Closed pranaydeeps closed 7 years ago

pranaydeeps commented 7 years ago

Using the device with the EPOC Headset, All packets are processed and none are lost, the device sampling rate is still too low. Close to around 50-55Hz. Could there be a configuration mistake? Or is the device faulty?

ghost commented 7 years ago

Are you running the example or something else? Also, what OS are you using?

pranaydeeps commented 7 years ago

I have tried running various codes, one of them was the example. No luck with any of them. I am on Ubuntu Gnome 16.04 and using the hidraw bindings. Also, I have tried running it on another system so, I don't think it is a system specific issue. Thanks for the help

ghost commented 7 years ago

If you could use the code that is mentioned above and tell me what it says the sampling rate is.

I can confirm on my system that it should be 128.

Packets Received: 1880 Packets Processed: 1880 Y Reading: 0 Quality: 0 F3 Reading: 314 Quality: 8 F4 Reading: 773 Quality: 16 P7 Reading: 195 Quality: 0 FC6 Reading: 911 Quality: 0 F7 Reading: 80 Quality: 8 F8 Reading: 1038 Quality: 16 T7 Reading: 349 Quality: 0 P8 Reading: -90 Quality: 16 FC5 Reading: 1114 Quality: 24 AF4 Reading: 466 Quality: 8 Unknown Reading: 111 Quality: 24 T8 Reading: 625 Quality: 16 X Reading: 1 Quality: 0 Z Reading: ? Quality: 0 O2 Reading: 210 Quality: 16 O1 Reading: -41 Quality: 8 AF3 Reading: 109 Quality: 0 Battery: 93 Sample Rate Rx: 128 Crypto: 128

ghost commented 7 years ago

Did you happen to see if this gave you a value other than 127-128 after running for a few seconds?

ghost commented 7 years ago

If you're still seeing abnormal performance please open another issue.