Audacity 2.3.2 Audio Editor for PC Windows

# Numerous bug fixes

* Crashes on Windows when clicking in the track or in effects dialogs.
* Crashes on OS X when closing or quitting.
* Warning (on by default) now provided when importing uncompressed audio files and when read-directly uncompressed files are missing.
* Full support added for later versions of the optional FFmpeg library up to current FFmpeg HEAD. More compatible U-Law/A-Law exports.
* VST effects processing restored to full speed. Hang fixed when launching on OS X 10.5 PPC with VST effects present.
* (OS X) Files imported from iTunes could create invalid characters in the .aup project file. See here for help re-opening older projects that have this error.
* (Linux) Crashes or stalled recordings using the pulse device. Crashes using Play-at-Speed if Audacity was configured with libsamplerate.

# Changes and Improvements

* Control Toolbar renamed to Transport Toolbar. Input/output selection moved from Mixer Toolbar to improved Device Toolbar (on by default).
* New "Sync-Lock Tracks" feature (turned on in the Tracks menu).
* Equalization now supports importing and exporting curves. Noise Removal improvements including new option to isolate noise.
* Improved Automatic Crash Recovery with all project changes autosaved.
* New "Extended Import" Preferences for specifying audio file importers.
* (Windows and Linux) Close button now quits on closing the last window while File > Close clears to a new, empty project.

# Bug fixes for:

* Imports and Exports:
- AAC files could not be exported at 48000 Hz
- When importing multiple native file formats using FFmpeg, all files after the first reverted to using the native importer
- FFmpeg custom export window too large on 800 x 600 resolution monitors
- Projects froze if files imported via On-Demand were no longer available
- (Linux) WAV/AIFF exports were corrupted if overwriting an aliased file which had been imported using the command line
* Labels:
- Cutting or deleting a region in the waveform and label track did not move the labels in advance of the cut
- Incorrect behavior snapping to labels and boundaries with Snap To enabled
- Labels can now be reversed if included with the audio selection using the command line
* Other bug fixes:
- When using non-English languages, Generate effects truncated the selected region
- Mice with high-precision scroll-wheels could cause a crash
- Changing recording preferences using the Transport menu did not update the menu in other open projects
- (Windows 7) Clicking in a file open or save dialog caused files or folders to disappear from the list, and file filtering was broken

# Changes and improvements:

- A hover tooltip is now provided if the Mixer Toolbar input selector cannot control the system slider for the selected input.
- More intuitive behavior when moving and resizing labels by dragging
- Support added for importing lists of files (LOF) containing relative paths
- Export Multiple: new option to use a numerical prefix before existing label or track names; "Success" dialog now resizable
- New Equalization preset "Inverse RIAA", with new button to invert other curves
- Timer Record now remembers last scheduled duration
- Meter Toolbar can now be made much narrower, and so more suitable for vertical orientation
- New Preferences choice for "System" language which is used on first run instead of asking user to choose language
- Warning now provided if WAV/AIFF exports are not successfully completed
- (Linux) Improved icon set in compliance with freedesktop.org Icon Theme Specification 0.6

# Bug fixes for:

* Imports and Exports:
- Bug when exporting partial selections caused too much audio to be exported is fixed
- Fix corrupt files exported through FFmpeg when metadata included (metadata is now exported correctly in M4A files)
- Prevent saving a new Audacity Project over an existing one as this could corrupt both projects
- Improved help for files that cannot be imported because the relevant optional library is missing

* Effects:
- Allow effects which change the length of the audio they work on to also be applied to selected label tracks, thus keeping them synchronized
- Fixed inability in Nyquist plug-ins to add labels to an existing label track
- (Mac) Equalization window was corrupted after Preview
- (Linux 64-bit) Fixed crash Generating Click Track

* Audio Devices:
- Fixed bug causing recording to stop short when the recording sample rate is not supported by the sound device and libsamplerate is used for resampling
- Fix crash when opening Preferences on a machine where there are no available audio devices
- Fixes for bugs using Timer Record and Sound Activated Recording

* User Interface:
- Sizes of some dialogs adjusted to ensure they fit on the screen
- Fix for supposedly "hidden" items appearing on screen with large monitors
- Various keyboard shortcut and translation fixes

* Other bug fixes:
- Several timing-dependent crashes and minor incorrect behaviours have been fixed
- Windows installer now installs correctly over previous versions of Audacity

# Changes and improvements:
- (Windows) Better icon file with higher resolution and transparency
- New SoundFinder plug-in to label regions of audio between silences, so allowing silences between tracks to be excluded when exporting multiple

# Bug fixes for:

* Imports and Exports:
- Freeze importing audio files when Default View Mode set to Pitch (EAC)
- Simultaneous On-Demand imports sorted incorrectly
- WAV or AIFF files imported as noise if Preferences set to copy in the data at 24-bit quality
- WMA exports corrupted if they contained metadata
- Metadata Editor appeared before the Export window when exporting to any format

* Effects:
- Crash or hang using Equalization on longer tracks
- Reverse did not reverse clip boundaries
- Nyquist:
- Excessive memory consumption led to slow processing or crashes
- Values appearing in text boxes not always the default or previously entered values
- Errors running in European locales where comma used as decimal separator
- VST effects remained in Effect menu even when re-scanned and no longer available
- Truncate Silence produced incorrect results if silences spanned a block boundary

* Other bug fixes:
- Spurious "not writable/disk full" errors when saving projects
- Playing, rendering or exporting multiple tracks led to desynchronized playback or loss of audio data
- Crash opening Preferences when no recording and/or playback devices enabled or connected
- Preferences window: OK button did not respond to ENTER when a tab selected in left-hand panel
- Mixer Board solo button handling
- (Windows) After a period launching correctly, Audacity sometimes did not come up on top at launch
- (Mac OS X) Correctly installed Help folder could not be found
- (Mac OS X and Linux) Output slider could affect VU playback meter which then did not reflect actual waveform volume level
- (Linux) Undoing or redoing a label edit could cause a crash

# Changes and improvements:
- Linked audio and label tracks disabled until a future Beta version so they can be bug fixed
- Input volume slider will be disabled if it doesn't have proper control of system slider; use the system slider instead
- Proper support for copying/pasting label-with-audio including label text; new Edit > Paste Text to New Label menu item to paste system clipboard
- Contrast Tool now modeless, more intuitive handling of multiple project windows, various other minor improvements

Bug fixes:

* Crash, slow launch or excessive CPU/memory use arising from automatic VST support:
o VST instrument plug-ins should now be correctly ignored
o VST effects now scanned only at start of first session that detects them, then cached
o Effects are now not loaded or opened until needed
o 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) :
o Audio Units effects applied to all tracks in project even if not selected
o 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

New Features
Effects and Analysis:

* VST Effects now display GUI by default
* Faster Equalization and Noise Removal; improved Truncate Silence and Click Track
* Chains applied to files now clear temporary data after processing each file
* Updated Nyquist implementation with support for SAL syntax and improved memory management
* Plot Spectrum now analyzes up to 237.8 seconds of audio, with separate windows for each project and improved display; new preferences for Spectrograms
* Contrast Analysis tool now modeless for easier use

Interface:

* Draft Manual/Quick Help included in Windows and Mac installers
* New "Mixer Board" view with per-track VU meters
* Mute, solo, gain, pan and track height saved in projects
* More compact Preferences window with easier-to-use Keyboard tab and new toolbars shortcuts
* New Screenshot Tools and improved screen reader support

Other:

* Record more than 16 channels (hardware/drivers permitting)
* Improved support for non-mmap ALSA devices such as PulseAudio
* 32-bit float data over 0 dB now handled without clipping
* "Stop" option when importing preserves already imported data
* AMR NB export now supported if the optional FFmpeg library is installed
* Faster waveform drawing and better response in multi-track projects

Bug fixes for:

* Export Multiple: failed if empty label encountered; files silenced if overwriting imported WAV files without copying them in
* Metadata Editor hidden if it was on a now unavailable second monitor
* Misaligned audio after "Split New" or Noise Removal effect
* Incorrect label movement and paste with linked audio and label tracks
* Equalization, Cut Preview and Advanced Mixing Options dialogue
* (Linux) Mixer Toolbar should now adjust levels and select input sources properly
* "Audio cache" preference caused crashes - data is now only cached in memory if available RAM is above a level defined in preferences
* Various other crashes

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/

New in Audacity 1.3.5

Recording / Playback
* Several bugs fixed so that latency correction should be better, and more devices work correctly.
* Problems with invalid sample rates under Linux should be much rarer.
* Newer version of Portaudio library.
* New feature to record onto the end of an existing track (hold Shift while clicking Record).

Import / Export
* Updated versions of Libogg, Libvorbis, Libflac, Libsndfile and Twolame libraries.
* Handling of unsupported file formats more informative.
* Handling of file names with slashes on OS X improved.
* New dialog allows replacement of illegal file name characters on all platforms.

Interface
* Improved scaling and layout for rulers and VU meters.
* Envelope fixes/improvements including full control of undo/redo.
* New keyboard shortcuts and improved menu navigation.
* Preferences:
o More intuitive tab arrangement.
o New options for mute/solo and Metadata Editor behavior.
o Language can now be changed without restart.
* Expanded Build Information tab.

Effects
* New Vocal Remover plug-in, improvements for Generate effects.

Compilation
* Fixes when building Audacity with libraries disabled.
* Improvements to make Mac and Solaris builds easier.

Security
* Full fix for issue CVE-2007-6061 on systems where temporary directories can be changed by other users (thanks to Michael Schwendt).

Miscellaneous
* Updated translations for many locales.
* Several stability improvements.

Changes in 1.3.4:
New Features
* New Welcome Screen with introduction to Audacity.
* Enhanced Windows Shell integration, so Audacity shows up in lots of Windows places such as "Open With".
* New keyboard command: 'Mix and Render to New Track' (bound to Ctrl+Shift+M).
* New keyboard shortcut: "Shift-A" starts playback when stopped, or performs "Stop and Select" when playing.
* Added support for VAMP audio analysis plug-ins.
* Solo button solos only one track at a time, and a track cannot be both mute and solo.

Interface:
* Keyboard shortcuts for making short/long jumps along the timeline.
* Added 'Snap To' in the Selection Bar.
* Made keyboard navigation easier when multiple menu items with the same first letter exist.
* Enhanced interface for label editing.
* Layout of OK/Cancel buttons consistency improved.

Preferences:
* "Select all audio in project, if none selected" (on by default).
* "Beep on completion of longer activities" (system bell, not main output).
* Other preferences cleaned up and explanations improved.
* Envelopes: Many fixes when copying / pasting / repeating.
* Many translation updates.
* Track height fixed in several cases.
* CleanSpeech mode switching without closing and re-opening fixed.

Opening/saving formats:
* Metadata editor added for OGG, FLAC and WAV/AIFF exports, and general improvements in this area.
* Import of metadata improved.
* Muted tracks are no longer audible in the exported mix.

Effects:
* Truncate Silence: support for multiple and stereo tracks.
* Dtmf Generator:
* Added support for keypad letters.
* Added an amplitude control.
* Compressor: Variable decay time added.
* Equalization:
* Clicks at start/end prevented
* Improvements to saved curves being found
* Preview works correctly
* 'Merge' command appears in Undo history.
* Clipping detected more reliably.
* Nyquist plug-ins reviewed and enhanced.
* Better (and more) progress bars.
* Canceling effect always restores previous audio.
* Several improvement to effects in batch mode.

Recording / Playback:
* Improvements to latency correction.
* Updated version of portaudio-v19 library. Note that Help is no longer built in, but accessible on the Web via links in Audacity.

Opening/saving formats:
* Import of audio from QuickTime (mov, aac, m4a) files is now
supported on OSX
* Metadata may be added to OGG files
* Improved export option selection
* Importing of Broadcast Wave Format (BWF) wave files now tolerated
* Additional export options added to MP3 and FLAC file formats
* Command line exporter now supported on Windows and OSX

Effects:
* EQ effect responsiveness improved
* Several enhancements to the EQ Effect
* Batch support added for the EQ effect
* New Auto Duck effect
* Added previewing to AudioUnit effects
* Much improved Noise Removal effect
* Effects previewing may now be canceled
* New DTMF Tone Generator effect
* Additional options available in Noise effect
* Improved the Tone Generation effects

Other features:
* New built-in screen capture utility
* Major speed improvement in Spectrogram rendering
* Increased support for drag and drop on OSX
* Support added for building against wxWidgets 2.8
* Support opening multiple Audacity Projects at once from Explorer on
Windows
* Improved main window sliders
* New support for snapping while selecting and sliding
* Improved track focus handling and visual feedback
* Speed improvements and handling of resizing/zooming in tracks
* Spectrum view may now be zoomed
* New internal file cache to improve handling of project files over
networks

Also:
* Many improvements to language specific translations
* Numerous stability improvements

Changes in 1.3.1 and 1.3.2:

o Improved accessibility for the visually impaired
+ Improvements for screen readers, accessibility of
tracks, and hot keys
o Usability improvements
+ New selection bar
+ New features for label tracks
+ Improved toolbar docking flexibility
+ Menu renaming and reorganization
+ Selection, ruler, and playback control improvements
o Auto-save and automatic crash recovery
o Many bug fixes and stability improvements
o Major improvements to some built-in effects (Repair, Equalization)
and fixes to others
o New features and bug fixes for Nyquist
o Restructured Preferences dialog
o Improved batch processing
o File format export improvements
o Timer recording
o Intel Mac support

* Fix memory leaks on Windows.
* Correct font size problems.
* Enable missing FLAC support.
* Fix Mac OS X screen redraw issues.

- An official Intel Mac version is now available.
- Fixed bug in Generate Silence which caused it to apply to all tracks instead of just the selected ones.
- Mac OS X: audio device opening code has been rewritten. First, it is much more conservative about changing device settings; it will not change settings when you open the program or close the preferences dialog anymore, and it will not change the settings when you begin playback/recording if the current settings are adequate. When it does change the settings, it should work much better on devices such as the Griffin iMic, ART USB Phono Plus, and Ion iMX02 USB.
- Mac OS X: added new Audio I/O preference that lets you tell Audacity to never change any audio device settings.
- Newer libsndfile supports FLAC import and export
- Updated soundtouch to current version which is faster and better quality
- Modified configure script prefers system libraries to local copies to reduce compilation times and memory usage.
- Minor updates to help files.
- New or updated translations: Bulgarian (bg), Galician (gl), Traditional Chinese (zh_TW), Simplified Chinese (zh), Slovenian (sl), Swedish (sv), Bangladeshi (bn), Slovakian (sk), Romanian (ro), Lithuanian (lt), Welsh (cy), and Turkish (tr).

- Improved accessibility for the visually impaired
+ Improvements for screen readers, accessibility of
tracks, and hot keys
- Usability improvements
+ New selection bar
+ New features for label tracks
+ Improved toolbar docking flexibility
+ Menu renaming and reorganization
+ Selection, ruler, and playback control improvements
- Auto-save and automatic crash recovery
- Many bug fixes and stability improvements
- Major improvements to some built-in effects (Repair, Equalization)
and fixes to others
- New features and bug fixes for Nyquist
- Restructured Preferences dialog
- Improved batch processing
- File format export improvements
- Timer recording

New features
- Collapse/Expand Tracks
- Multiple clips per track
- Selection Bar
- Improved Label Tracks
- QuickTime and Audio Units on Mac OS X