Erwan,
Thanks for the great informational post and your analytical "dissection" of the various ingredients of holosync.
I have only used the free sample they send out, but I was very impressed with the quality of the recording (without an opinion about the validity of the underlying theraputic value). It is obvious to me that it was probably done with high quality microphones and mixing equipment, and had a much better sonic quality than most environmental sound CDs (such as what Alex mentioned on an earlier post).
I am curious, though, as to why your reproductions did not sound quite as good as the originals. Could it be the conversion to a .wav file, which is often described as a "lossy" conversion (like mp3 - unless I'm mistaken) - causes a noticeable deterioration of the sound quality?
