How To Speed Up Multiple Files?

Hello everyone,

I just downloaded Audacity 2.3.0 for MacOS High Sierra.

I would like to speed up about 40 mp3 files that I have to 2X speed.

I was hoping to follow the procedure outlined here:

https://lifehacker.com/5458052/how-do-i-speed-up-hundreds-of-audio-files

but I can’t find the File > Edit Chains that they mention.

Kindly assist.

“Chains” were a kind of cut down version of “macros”.
We’ve now called them macros, and extended what they can do.
The Macro commands are in the new “Tools” menu.

Information about what macros are and how to use them: https://manual.audacityteam.org/man/macros.html

Great!

Thanks so much!