Free and open source audio editor for your Mac
Audacity allows you to record sounds, play sounds, import and export WAV, AIFF, and MP3 files, and more.
Built-in effects include Bass Boost, Wahwah, and Noise Removal, and it also supports VST plug-in effects.
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.
Requirements:
LAME MP3 Encoder Library
at least 64 MB RAM and a 300 MHz processor
What's New in This Release:
Cross-platform Bug Fixes:
Muting/soloing caused incorrect channel results in exported stereo files
Noise Removal and all Nyquist effects pasted the original unmodified audio at the end of the modified region
Noise Removal inserted a tail of low level noise at the end of the modified region
Nyquist and Compressor plug-ins did not display moving bars in progress dialogue and over-estimated "Remaining Time"
Cancelling Nyquist effects deleted unprocessed audio
Change Speed and Change Tempo failed to modify the original selection length
Cut lines invisible
Fixed various bugs importing multi-stream files via FFmpeg
File > Export as WAV could be corrupted if overwriting an imported WAV read direct from the file
Export multiple "Other uncompressed files" choice always produced 16-bit PCM audio irrespective of chosen options.
MP3 export usually produced a 128 kbps constant bit rate file irrespective of chosen options; reported length often incorrect
MP3 ID3 Genre tag misread on import if the genre list in Metadata Editor was opened and saved
Exported metadata tags in MP3, OGG and FLAC often not seen by player software - now substantially improved
WMA exports (via FFmpeg)corrupted if metadata tags included
Some multi-channel recording devices that previously recorded more than two channels no longer did so
Generated audio did not fit in window
No warning was given when saving an empty project
Beep on completing longer process did not work on many systems
fixed crashes importing lists of files (.LOF), in Meter Toolbar and Change Speed
Platform-specific Bug Fixes:
Windows Vista: crash opening Preferences with no sound devices enabled and connected
Mac OS X and Linux:
Spurious clipping at start of playback
Labels did not accept certain legal characters
Shortcuts did not work after running effects
Project Rate did not change to respect rate of first imported file if that rate was unsupported
Mac OS X only:
Crash resizing project window
Menu items became inactive or visibly corrupted
File > Open dialogue did not always work on OS X 10.4
Impossible to set independent Command and Control shortcuts that shared the same key
Freeze importing uncompressed files via On-Demand (please report any remaining instances of this to: feedback@audacityteam.org)
Portable settings were not picked up, instead settings were taken from the default location
Fixed unavailability of FFmpeg installer
New Features:
F11 Full Screen mode
High-quality "Sliding Time Scale/Pitch Shift" effect
Audio Contrast Analyzer for testing audio on the internet for WCAG2 accessibility compliance.
Windows: sound devices can now be opened using the more efficient DirectSound API
Other changes:
Latency correction should be improved for many users by employing a fixed rather than variable correction
Grouping of Effects into categories turned off until a way is added for users to do so themselves
Numerous minor interface improvements such as Metadata Editor navigation, new "hh:mm:ss + hundredths" selection format
Note: Windows users wanting to export MP3 files will require the latest version of the LAME encoder from http://lame.buanzo.com.ar/
Mac Categories
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