Audacity 1.3.9 beta

Audacity 1.3.9 beta is an easy-to-use handy afree audio editor. You can record sounds, play sounds, import and export WAV, AIFF, and MP3 files, and more. Use it to edit your sounds using Cut, Copy and Paste (with unlimited Undo), mix tracks together, or apply effects to your recordings. It also has a built-in amplitude envelope editor, a customizable spectrogram mode and a frequency analysis window for audio analysis applications. Built-in effects include Bass Boost, Wahwah, and Noise Removal, and it also supports VST plug-in effects.

Major Features:

1. 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.
2. 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.
3. 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.
4. 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
5. 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.
6. 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.
7. Analysis
   • Spectrogram mode for visualizing frequencies.
   • “Plot Spectrum” command for detailed frequency analysis.
8. Free and Cross-Platform
   • Licensed under the GNU General Public License (GPL).
   • Runs on Mac OS X, Windows, and GNU/Linux.

Enhancements:

• Bug fixes for:
• • Crash, slow launch or excessive CPU/memory use arising from automatic VST support:
  • • VST instrument plug-ins should now be correctly ignored
    • VST effects now scanned only at start of first session that detects them, then cached
    • Effects are now not loaded or opened until needed
    • New "Effects" tab in Preferences to enable/disable VST effects and enable VST rescan on next launch
  • Default View Mode now works
  • Chains now always apply their stored parameters rather than those last used in Effect menu
  • Non-MP3 files imported via drag or Recent Files caused crash if filter in file open window set to MP3
  • AAC exports (using the optional FFmpeg library) silenced
  • Generating audio always fitted the project in the window; fit now done only if generating in new track
  • View menu items/shortcuts incorrectly disabled when playing or recording
  • DTMF generator defaulted to zero duration on open
  • Unwanted interactions between linked audio and label tracks
  • (Windows XP)  Failure to launch on some machines due to "incorrect configuration" issue
  • (Windows)  Crash importing a stereo file while a screen reader such as JAWS is running
  • (Mac OS X) :
  • • Audio Units effects applied to all tracks in project even if not selected
    • QuickTime importer now handles files greater than 16-bit or 64000 Hz
  • Various other interface bugs
• Improvements:
• • Compressor: new option to compress based on peaks, improved attack and decay time support
  • Mixer Board: improved design, more responsive meters and now interacts fully with Track Panel in main window

Requirements: Windows 2000/XP/Vista