Full disclosure: I work on OnePassApps.

A voice note, a podcast intro or a screen recording usually leaves you with a file bigger than it needs to be. The usual fix is to upload it to an online converter and download the result, which means your recording sat on somebody else's server on the way. Audio Studio in OnePassApps does the same job inside the browser tab: the file is decoded and re-encoded locally, and the copy you save is built on your own machine.

Audio Studio has four tools - Convert, Compress, Trim and Extract. This one is about Compress.

What the Compress tool does

You drop one audio file on the stage and the tool checks it before anything else happens.…