header.format = 'Open Ephys Data Format'; 
header.version = 0.3; 
header.header_bytes = 1024;
header.description = 'each record contains one 64-bit timestamp, one 16-bit sample count (N), 1 uint16 recordingNumber, N 16-bit samples, and one 10-byte record marker (0 1 2 3 4 5 6 7 8 255)'; 
header.date_created = '21-Jul-2015 145012';
header.channel = 'CH30';
header.channelType = 'Continuous';
header.sampleRate = 30000;
header.blockLength = 1024;
header.bufferSize = 1024;
header.bitVolts = 0.195;
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
