ocenaudio 3.20.5

ocenaudio is a free audio editor for Windows, macOS and Linux.

It is free to download and free to keep, with no trial timer and no paid edition holding features back.

Download ocenaudio 3.20.5 - around 48 MB, released 19 August 2026.

Is this the official ocenaudio download?

The file here is the developer's own installer, mirrored and version-matched to the current release, and scanned before listing. Nothing is repackaged, wrapped or bundled.

The developer's own site is ocenaudio.com, and taking it from there is equally fine. What you should avoid is the third result down that offers a "download manager" first.

ocenaudio is freeware rather than open source. It is free for personal and commercial use, but the source is not published, which is the main thing that separates it from Audacity.

What changed in ocenaudio 3.20.5

Most of this release is plugin repair work, and it matters if you use VST3 or Audio Unit effects. Applying an effect for real, rather than previewing it, used to shift your audio slightly and clip the end, and that is fixed.

• The Signal Generator can now produce a frequency sweep, with a linear or logarithmic scale and a preview of the curve before you commit.
• Applying VST3 and Audio Unit effects destructively no longer shifts the audio, adds silence at the start or truncates the end.
• VST3 plugins keep their settings when you apply an effect, and "Default Settings" genuinely resets the parameters again.
• A misbehaving plugin no longer takes the whole program down with it, since crashes are now contained.
• The VST3 plugin editor is sized correctly on high-density displays.
• Opening a file of unknown size as raw PCM no longer crashes, and on Windows, dragging external files into the window no longer crashes either.
• Flattened peaks no longer reappear in the waveform when you zoom out.

Version history: 3.20.0, 3.20.1 and 3.20.2

If you are still on a 3.19 build you are several steps behind, and 3.20.0 is the release that changed the most.

3.20.0, 9 July 2026. The significant one.

• VST3 plugin support arrived, with a native editor and real-time preview, alongside a redesigned plugin manager.
• Trim Silence strips leading and trailing silence in one click, and new tools select silent stretches for you.
• DSD import for DSF and DFF files, and DDP output with CD-Text, ISRC and pregap markers.
• Read support widened to Dolby TrueHD, MLP, MPEG-4 ALS, TAK, RealAudio and xWMA, and WMA export was added.
• You can drag audio straight out of ocenaudio into Explorer or Finder to export it.

3.20.1, 24 July 2026. Opening and saving over SSH and SFTP, multi-track subtitle export as SRT, and a faster engine for loading files over HTTP. It also fixed VST plugins going missing from some packages.

3.20.2, 1 August 2026. The plugin fixes listed above, and the frequency sweep generator.

Formats ocenaudio opens and saves

The everyday list is unremarkable and complete: MP3, WAV, FLAC, OGG Vorbis, AAC and M4A, AIFF and WMA, in the usual bit depths and sample rates.

The interesting part is what 3.20 added underneath. DSD files in DSF and DFF open directly, which matters if you work with high-resolution audio, and read support now covers Dolby TrueHD, MLP, MPEG-4 ALS, TAK, RealAudio and xWMA.

DDP output with CD-Text, ISRC codes and pregap markers is the one that surprises people in a free editor, since that is the format a replication plant expects.

If you only need a format change rather than an edit, you do not need any of this. Our Online Audio Converter does it in the browser, and FFmpeg handles it from a command line.

What ocenaudio is genuinely good at

The multi-selection tool is the feature people stay for. You can highlight several separate stretches of one file and treat them as a single selection.

That turns an awkward job into a quick one: normalising only the parts of an interview where your subject is actually talking, for example, and leaving the interviewer untouched.

• Large files open quickly. ocenaudio does not load the whole file into memory first, so a long recording is usable within seconds.
• The spectrogram updates live. Change the display settings and the view redraws as you drag, which makes finding a hum or a click far easier than reading the waveform alone.
• Effects preview in real time. You hear the processed audio while you move the controls, instead of applying, listening, undoing and guessing again.
• Plugins are properly supported. VST2, VST3 and, on macOS, Audio Unit effects all run with the same live preview as the built-in tools.

The screenshots show the spectrogram and the editing view, which is worth a look if you have only used a waveform-only editor before.

Who should look elsewhere

Here is the tell: if you catch yourself wanting to stack a vocal over a backing track and slide one against the other, ocenaudio is the wrong shape of tool. It edits one file at a time and does not arrange or mix multiple tracks on a timeline.

For multitrack recording and mixing, REAPER is the serious option and Audacity is the free one most people land on.

If all you want is to shave the ends off an MP3 without re-encoding it, mp3DirectCut does that job in a 322 KB download, and CUE Splitter handles splitting an album image by its cue sheet.

There are more options in Audio Editors if none of those fit.

Tools that pair well with it

Editing is one step in a chain, and these are the neighbours worth knowing about.

• Exact Audio Copy for getting audio off a CD accurately in the first place, with the CD ripping guide covering the settings.
• LAME and Opus for encoding once you are finished, or FLAC if you are keeping it lossless.
• Mp3tag for metadata, and MP3Gain for evening out volume across an album without re-encoding.
• foobar2000 for listening back and for batch conversion.

The wider sets are in Audio Encoders and Audio Codecs.

If you are still deciding what to save as, the FLAC vs MP3 guide is the place to start.

Quick questions

Download ocenaudio 3.20.5 and see how it handles your files, or tell us how you got on if you have used it before.