Your comments

Thanks Sergey, 

For this driver I summed 4 consecutive single byte values (0-255 for each byte).  A JS summing function is matching the 0-1023 data range output from the device.  Everything looks good in terms of parsing but I still need to work out the timing of the data stream to get the best graphic effect as there are 8-simultaneous audio channels to monitor.   Thanks again for the response.

Best Regards,