This may more properly belong in a Rockbox forum, but…:
Rockbox 3.7 for Clip+ appears to offer a pitch adjustment, but Rockbox manual says this tweak disappears when the unit is powered off…however the manual also says pitch setting resides in a bookmark, and it says somewhere else that a bookmark may be assigned to playlist, and it says somewhere else that a folder (aka directory) is one type of entity that may be assigned a bookmark, and finally it says somewhere that a bookmark may be made persistent (i.e. through power cycling).
So, it appears that pitch may be adjusted in a bookmark assigned to a root folder containing ALL music on the Clip+ internal memory and/or added micro SDHC card, and this pitch adjustment may be configured to persist through power off/on cycles unless user changes it, if I connect the dots correctly here.
Can anyone describe the exact details of how to use Rockbox to configure a “permanent” pitch adjustment for Clip+ that persists through power cycling, affecting ALL music files on the Clip+? This would be THE solution to the Clip+ pitch bug. Rockbox manual does not describe this adequately…
The 0.25% pitch error in Clip+ factory firmware/etc may be undetectable to some, but if there is a way to reduce the error to 0.05% for all music on the Clip+ or less then why not do that? Sonic fidelity is my goal…“good enough” is NOT good enough if there is an economical way to get better.