★★★★★
Audacity
| Windows/Linux/Mac OS28 Mb |
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надежный site.
OpenSource
The audio editor and recorder for Windows, Mac OS X, GNU / Linux, and other operating systems, live sound recording, film processing and recording of digital audio, edit Ogg Vorbis, MP3, and WAV audio files, various audio processing (copy, joint, speed change, the connection of audio tracks), import and export WAV, AIFF, AU, and Ogg Vorbis files ... for transfer to MP3 need lame_enc.dll (350 Kb), which can be downloaded here.
Analog of the paid
SoundForge