Selections from the toolkits of our librarians
A digital audio workstation (for recording, editing and producing audio files) "featuring both a multitrack, non-destructive mix/edit environment and a destructive-approach waveform editing view" [Wikipedia].
Audacity is a free, cross-platform audio editing program available online or via free download. Audacity facilitates audio imports, recording, editing, working with multiple tracks, and exporting.
GarageBand enables music creators to record, edit, mix, and share audio tracks. Create your own songs from scratch, or make combinations using GarageBand's digital samples.
Available for MacOS and iOS devices.