Well, maybe I've solved the loud click between
wav tracks phenomenon ... !
If tested with various versions of
wav files with and without ID3 tag data.
Result:
wav files without any ID3 data (without any tag data at all) had no clicking noise (or almost inaudible which is currently "normal" according to support).
wav files with a whole lot of ID3 tag data like my first ones have a very loud click/crack noise at the end, intensity depending on the tag data ...
So to me it seems the part of the firmware streaming the
wav files sound data to the DAC also streams the tag data in the file or at least stops to late reading or whatever ... which results in this ugly loud click/crack.
I posted these findings to support. Let's see what they think.
P.S. Just found this:
http://www.hydrogenaudio.org/forums/lofiversion/index.php/t43135.html
"
... Breaks the standard of wav, wav is a container format and those id tags are written after the container. The Ironic thing is - by adding just 8 bytes before the id tag (I am assuming it is id3 at the end) they could be added into the container with a unique riff chunk, MusicMatch I think also are guilty of this. ..."
Well, I think that pretty confirms my assumption ...