How do I set up the Windaq/Pro software to record EMG data?
You need to make sure that the Windaq/Pro software is sampling the data fast enough – this is controlled by two settings: more ยป Edit:Preferances:Maximum Sample Rate needs to be set to the highest rate that you are likely to need – somewhere in the 50000 to 80000 range works well in most cases. For example, if you are recording 10 channels of EMG + 2 event switch channels then this works out at a per channel sample rate of 50000/12 (just a bit over 4,000 samples per channel). Edit:Sample Rate can now be set to the actual rate that you want to capture data at – this can be anything up to the Maximum Sample Rate that you set above. This rate (like the maximum rate) is the overall throughput rate for the ADC so you count up the number of channels that you are collecting from (we’ll assume four channels for this example) and multiply it by the signal bandwidth that you use (controlled by the Bandwidth switch on the BPU – let’s assume you have set this to #6 or 500Hz) – then double the resu