Anti Aliasing Filters for EMG application
abheekbose
Singapore
in Hardware
Hello Everyone
We are trying to sample EMG data of face muscle movements during normal speech.
I
understand from this document (
https://delsys.com/Attachments_pdf/download/tutorials/01_fundamental-concepts-in-emg-signal-acquisition.pdf
/ Heading 2.5 page 13) that EMG signals data usually range upto 500Hz.
understand from this document (
https://delsys.com/Attachments_pdf/download/tutorials/01_fundamental-concepts-in-emg-signal-acquisition.pdf
/ Heading 2.5 page 13) that EMG signals data usually range upto 500Hz.
Therefore the proper sampling must be at least 1000Hz
Based on the above I have two questions:
a.
Can OpenBCI achieve higher sample rates with WiFi over 1000 Hz. If so:
how? (I know we can sample higher with SD card, but I am looking at near
real time data transfer)
Can OpenBCI achieve higher sample rates with WiFi over 1000 Hz. If so:
how? (I know we can sample higher with SD card, but I am looking at near
real time data transfer)
b. Is there a possibility to include an anti-aliasing filter BEFORE ADC in order to filter out any signal beyond EMG frequencies?
Any suggestions, redirects and responses would be highly apprecaited
Thanks in advance
Cheers
Abheek
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