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To download Fission from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.


By Rogue Amoeba Software

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Crop and trim audio, paste in or join files, or just rapidly split one long file into many. Fission is streamlined for fast editing. Plus, it works without the quality loss caused by other editors, so you can get perfect quality audio even when editing MP3 and AAC files.

If you need to convert formats, Fission can do that too, with simple export or batch conversion to the MP3, AAC, Apple Lossless, FLAC, AIFF, and WAV formats.

Fission makes audio editing fast and easy - get it now!

What's New in Version 2.2.5

* This version improves file support for several different file types. First up, loading of AAC and Apple Lossless is much faster.

* In addition, support for Apple Lossless files has been improved, with support for the rare 20-bit ALAC format.

* Tag support for FLAC files has also been improved.

* Rounding out our improved file support, chapterized AAC files are now better supported as well.

* Other minor fixes and improvements have been made.


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Customer Reviews

Excruciating editing, pops and clicks everywhere.

I regret spending real money on this software.

Selections and markers snap to .02s. Can’t position them accurately enough to find zero-crossings. This is a HUGE PROBLEM, since it doesn’t make any effort to place them near zero-crossings (or put in tiny fades) to eliminate pops. Every cut has a pop. Garbage. (I downloaded the trial version from their website, but that one puts long fade-ins on all the exported files, so I didn’t notice the pops until I’d paid.)

Shows stereo files as mono. Can’t tell if one of your channels is going to pop until you export.

No accuracy or sample editing to remove pops. Not enough accuracy to create a short enough fade.

No way to add markers at the beginning and end of a selection. Very frustrating, since you can drag the ends of a selection independently with good accuracy, but then can’t mark them. (There is “remove and split”, which is the exact opposite.)

Fundamentally broken, very disappointing, and certainly not worth $28.99 for export files that pop and click.

Two stars because it looks pretty, and has some good ideas about approaching the problem of slicing up a big file.

View in Mac App Store
  • $28.99
  • Category: Music
  • Updated:
  • Version: 2.2.5
  • Size: 13.9 MB
  • Language: English
  • Seller:

Compatibility: OS X 10.9 or later, 64-bit processor

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