First, how can I check an audio (or music video) file to establish whether it is tuned to 432 Hz or 440 Hz pitch?
And, if it is tuned to 440 Hz, are there any tools I can use to change the pitch?
I'm looking for a simple tool to enable me to cut the last 30 seconds from a number of MP3 files I have. Something like Audacity is much too complicated for me.
I want to make changes in all of my .m3u playlist files as I copy them to a different computer. The copying part I have done, but I need to make the changes inside the files as well. How can this be done most easily?