Audacity 2.0 Review for Linux
Audacity for Linux is a free, easy-to-use and multilingual audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems.
You can use Audacity to:
- Record live audio.
- Convert tapes and records into digital recordings or CDs.
- Edit Ogg Vorbis, MP3, WAV or AIFF sound files.
- Cut, copy, splice or mix sounds together.
- Change the speed or pitch of a recording.
- And more! See the complete list of features.
Recording
- Audacity can record live audio through a microphone or mixer, or digitize recordings from cassette tapes, vinyl records, or minidiscs. With some sound cards, it can also capture streaming audio.
- Record from microphone, line input, or other sources.
- Dub over existing tracks to create multi-track recordings.
- Record up to 16 channels at once (requires multi-channel hardware).
- Level meters can monitor volume levels before, during, and after recording.
Import and Export
- Import sound files, edit them, and combine them with other files or new recordings. Export your recordings in several common file formats.
- Import and export WAV, AIFF, AU, and Ogg Vorbis files.
- Import MPEG audio (including MP2 and MP3 files) with libmad.
- Export MP3s with the optional LAME encoder library.
- Create WAV or AIFF files suitable for burning to CD.
- Import and export all file formats supported by libsndfile.
- Open raw (headerless) audio files using the “Import Raw” command.
- Note: Audacity does not currently support WMA, AAC, or most other proprietary or restricted file formats.
Editing
- Easy editing with Cut, Copy, Paste, and Delete.
- Use unlimited Undo (and Redo) to go back any number of steps.
- Very fast editing of large files.
- Edit and mix an unlimited number of tracks.
- Use the Drawing tool to alter individual sample points.
- Fade the volume up or down smoothly with the Envelope tool.
Effects
- Change the pitch without altering the tempo, or vice-versa.
- Remove static, hiss, hum, or other constant background noises.
- Alter frequencies with Equalization, FFT Filter, and Bass Boost effects.
- Adjust volumes with Compressor, Amplify, and Normalize effects.
- Other built-in effects include:
- Echo
- Phaser
- Wahwah
- Reverse
Sound Quality
- Record and edit 16-bit, 24-bit, and 32-bit (floating point) samples.
- Record at up to 96 kHz.
- Sample rates and formats are converted using high-quality resampling and dithering.
- Mix tracks with different sample rates or formats, and Audacity will convert them automatically in realtime.
Plug-Ins
- Add new effects with LADSPA plug-ins.
- Audacity includes some sample plug-ins by Steve Harris.
- Load VST plug-ins for Windows and Mac, with the optional VST Enabler.
- Write new effects with the built-in Nyquist programming language.
Analysis
- Spectrogram mode for visualizing frequencies.
- “Plot Spectrum” command for detailed frequency analysis.
Free and Cross-Platform
- Licensed under the GNU General Public License (GPL).
- Runs on Mac OS X, Windows, and GNU/Linux.
audacity-freeworld supports MP3!

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