I exported my files to 48 kHz as I always read 48 kHz is better so my whole setup from PC/DAW is set to 48 kHz but now someone said he needs the files in 44.1 kHz, I dont want to export all my music tracks from the DAW again as it takes some time. I see Wavelab has a batch conversion but will it change anything to the material when I convert them? like pitch, stretch, distortion etc.?
Well, when you do a sample rate conversion with WaveLab, the rendered result will be at 32 bit float bit depth (or 64 bit float, if set in your preferences). So dithering afterwards might indeed be recommended / needed, unless you save the resampled file as appropriate floating point file.
Don’t need dithering.According with that picture you’re gonna export with a new sample rate with no problems. The pitch change happens if you play an original sample rate in a project with a different sample rate (e.g. importing in a 44.1 kHz project a 48 kHz file) but Cubase and Wavelab prompt for it and conversion.