Everything Audacity does to a single file, done in half the clicks and with live effect previews. The catch is the missing multitrack.
Ocenaudio is what happens when someone looks at Audacity, agrees with the feature list, and disagrees with the interface. It is free, cross-platform, and built by the team behind the Ocenaudio audio library at a Brazilian research institute. It has no multitrack timeline and it is not trying to have one. It is a fast, precise editor for working on one file at a time, and at that job it is more pleasant than anything else free.
In most free editors, applying an effect is a loop: open dialog, guess a value, click OK, listen, undo, repeat. In Ocenaudio the audio keeps playing while you drag the slider, and you hear the change as you make it. Filtering out a hum, finding the right amount of compression, dialling in an EQ curve: all of it becomes a five-second job instead of a five-minute one.
That single design decision changes how you work more than any feature list can convey. It is the reason people who own Audition or REAPER still keep Ocenaudio installed for quick tasks.
Recording is straightforward: choose the device, set the sample rate and bit depth, press record. Levels are shown clearly, you can record into an existing file at a chosen position, and it writes as it goes. There is no punch-in, no overdub-against-a-backing-track workflow, no take management. One file, one take, edit afterwards.
Like most desktop tools it cannot see system audio on its own. On Windows you can route output through VB-Audio Cable and record that; on macOS, BlackHole does the same job. Once the loopback device exists, Ocenaudio treats it as an ordinary input.
The toolbox covers what most people need without being overwhelming:
It handles very large files unusually well. Opening a two-hour WAV is close to instant because the program streams from disk rather than loading everything into memory, and scrolling stays smooth. Anyone who has waited on a lecture recording to open elsewhere will notice immediately.
No multitrack is the headline limitation. You cannot record a second voice onto a separate track, you cannot layer music under narration, and you cannot mix. For podcast production with more than one participant, this rules it out as your only tool.
It is also closed source. Free to download and use, but you cannot inspect it or fork it, and its future depends on the goodwill of the team behind it. For some people that is irrelevant; for others it is the reason to stay with Audacity.
Finally, effects are applied destructively, and there is no project format holding a non-destructive edit history. Undo works well within a session, but you are editing the audio itself, so keeping an untouched copy of your original recording is essential discipline.
The most enjoyable free audio editor to actually use, and the right recommendation for anyone who found Audacity offputting. If your work is one file at a time (trim it, clean it, convert it, send it), Ocenaudio will be faster every single day.
The moment you need two tracks playing together, install Audacity alongside it or step up to REAPER.