Here an incomplete list of the features of LAoE:

  1. readable filetypes: .ogg .mp3 .wav .laoe

  2. writable filetypes: .wav .laoe

  3. custom file format .laoe stores the separate layers, editing states and documentation

  4. multi-channel support (mono, stereo, 3 and more), number of channels limited by hardware and sound-system only

  5. multi-layer support (tracks containing multiple channels), number of layers limited by hardware only

  6. floating point sample processing

  7. one volume-mask per channel

  8. several standard editing functions like copy, paste, cut, move, duplicate, crop...

  9. unlimited undo-history with absolute view

  10. extended select functions with variable intensity curve to define smooth selections, and several selection manipulation functions

  11. layer-stack and channel-stack to manipulate these objects

  12. zoomable sample-curve view

  13. zoomable and configurable spectrogram-view

  14. analysis tools like spectrum view, measure tools, statistics, calculator...

  15. diverse waveform generators like signal-generator (rectangle, triangle, sinus...), harmonics generator, pitch generator, freehand generator with diverse interpolation features...

  16. divers amplitude functions like balance, divers fades, compress expand, distortion, autovolume...

  17. diverse sample-functions like constant and variable resampling , diverse math functions, convolution, forward and inverse fast fourier transform (yes, you can edit the freqeuncy domain!)...

  18. some filters like parameter-filter, equalizer, multi-notch filter, FFT filter...

  19. a great spectrogram-filter, which allows to edit in spectrogram-domain, using a brush or rectangle tool to select shapes

  20. many audio-effects like multiple reverbs, delay-echo, chorus-flange, multipitch, disharmony, pitch shift, time stretch etc...

  21. a disharmony-plugin to completely disharmonize a sound in several ways

  22. some plugins (effects and functions) accept a function curve as parameter, to perform variations in time of a parameter of that effect or function

  23. uniform clip concept allows to perform all these effects and function on usual time-domain audiosamples, frequency-domain spectrums (magnitude, phase) or any parameter curve

  24. graphic objects may be drawn onto the clip, for documentation purpose

  25. extensible plugin architecture


LAoE today?

Today LAoE is quite stable enough to perform plenty of audio editing works in  productive environments.

Ok it is still incomplete in many aspects. LAoE has still strong limitations in supported audio file formats, particularly for export. The quality of some plugins and effects is not satisfactory .

Hopefully the development of LAoE will keep going on.

LAoE is written in java, running on JRE6 or higher on most common operating systems like OS X, linux and windows.


The LAoE menu card is a double-side printed card, containing global information when working with LAoE, like details of the most common plugins, menu-structure, key-shortcuts and mouse-shortcuts. Download it, and make a paper-print.

The LAoE tutorial serie is available here. The LAoE tutorial serie is a serie of articles focussed to LAoE users. These articles have been written with the idea to bring LAoE to a larger public, maybe because LAoE isn't straight forward to use without documentation.

  1. first steps, august 2002 (pdf 1.5M)

  2. how to use selections, april 2002 (pdf 0.9M)

  3. how to use layers, april 2002 (pdf 2.6M)

(c) 2001-2011 oli4, switzerland

Menu card (old stuff)

Tutorial serie (old stuff)