Keywords: audio, editor, bit-perfect, free, open source

WaveShop is a free, open-source audio editor for Windows XP/Vista/7. Unlike many similar apps, WaveShop is bit-perfect, meaning samples aren't altered unless they need to be. Editing a portion of an audio file only affects that portion; the rest of the file is untouched. Blocks of audio can be cut and pasted without changing their contents at all. This is especially useful for patching a finished master without corrupting its dither. Note that 64-bit Windows users are strongly encouraged to install the 64-bit version of WaveShop, because it can load bigger files and/or more files at once without running out of memory. Waveshop's features include:

* Bit-perfect: samples aren't changed needlessly
* Very fast: all processing is done in memory
* 64-bit version can edit files exceeding 2GB
* Supports most file formats including AAC/MP4, MP3, FLAC and Ogg/Vorbis
* Clipboard: Copy/Cut/Paste/Insert/Delete
* Unlimited undo
* Normalize and/or fix DC offset
* Amplify (boost/attenuate)
* Fade in/out/custom, linear or logarithmic
* Peak statistics
* RMS statistics with histogram
* Reversal and inversion
* Find clipping with detailed report
* Extract channels to mono files
* Insert/delete/swap channels
* Change audio format
* Sample rate conversion
* Generate audio w/ envelopes and modulation
* Edit surround speaker assignments
* Find zero crossing
* Multiple Document Interface (MDI)
* Multithreaded processing
* Playback via DirectSound
* Peak-hold meters with surround support
* Real-time spectrum analyzer
* Recording with no limit but disk space