is there a software that reverses all my WAV files?
is there a software that reverses the sounds of all my WAV files (to be saved in a different folder)...

would be very nice i guess, easy effect sounds

 

I remember in one of the discussions I said that people choose any path except the right one. Choosing the right way is the hardest thing. Now in your case, the reverse path.

 

Audacity supports batch operations, that would do what you want

 

I'm pretty sure dbPowerAmp Converter can do this very fast and with many files at once.

So deep... sensei!!!
Hey, perhaps the OP just wants to look for satanic messages. That's a commendable path.

 

with Audacity:

Tools>Macros

once the Macros window is open:

New (give the macro a name and select it)

on the right side of the window:

insert>Export as WAV (press OK)

insert>Reverse (press OK)

check that "Export as WAV" is placed after Reverse command on the right side of the Macro window

on the lower side of the window:

Apply Macro to: Files

Select all the files inside the same folder (multiple folders not supported)

press OK

Files will be saved on a subfolder called "macro-output"

 

every decent DAW has a reverse function. Then just save it as a .wav file