property RecordPosition: Int64;
Set and get position in samples.
Returns: Int64
Remarks:
Set RecordPosition in samples to position the read cursor within the current record and load Length samples from the Channel. Read Recordosition to determine the current position of the read cursor within the current record. If the record is multiplexed, the position is defined for sample count per single channel. Setting RecordPosition will also open file, if not already open.