This video is about a brief explanation of cost factors of hearing aids. Remember every brand is different, there wont be too much detail about software specifically, but this is to get the general idea across.
The video focuses on two main factors, the Software of the hearing device and the Channel and Bands. Please do contact the manufacture about your hearing aids technology and more advanced questions. This video is only to give you some insight on the area I think plays a big factor in the hearing aids costs.