Bug fixes for:

Interface:

Excessive delay occurred when typing into labels in long projects.
Last digit of TimeText controls could not be manipulated in some formats.
(Windows, OS X) Play and Record shortcuts did not work after clicking in Device Toolbar.
(OS X, Linux) Crash occurred if Toolbars were reset during playback or recording.

Imports and Exports:

MP2 files were not importable without FFmpeg library or an import rule.
Files that could only be imported using FFmpeg imported as noise with no error message if FFmpeg was not available.
Files containing PCM audio but an incorrect extension (such as MP3) caused a freeze.

Effects and Analysis:

An empty command could be added to a Chain which then displayed a Nyquist error message when run.
Plot Spectrum didn't preserve signal level if multiple tracks were analyzed.

Other bug fixes:

Audacity has been provisionally fixed so that it can no longer create block files longer than the sample format or project format allows, and can no longer delete these, which led to data loss. Any overlong blocks found are preserved but "orphaned", so will appear as silence.
Orphan block files were wrongly reported if cutting or copying to the clipboard then reopening the project in the same session.
Fixed some crashes and incorrect movement of audio when dragging tracks.
(Windows) Data loss is now prevented when encountering a corrupted .aup file created in ANSI builds.
(Linux) Restore building if USE_PORTMIXER is not defined.

Changes and Improvements:

Normalize: Faster processing and improved interface. Left-right balance in unsplit stereo tracks is now preserved by default, with a checkbox option provided to process stereo channels independently.
Spectrograms now allow window sizes up to 32768 and frequencies up to half the sample rate (the maximum possible).
Mix and Render now preserves clip length by not rendering white space between time zero and first audio, and preserves audio before time zero. To retain silence before the audio starts, generate silence after render.
Grouped some Edit Menu items into "Remove Audio" and "Clip Boundaries".
CleanSpeech Mode removed from Interface Preferences (it still runs if it was enabled in a previous Audacity but can only be turned off there).
(OS X) Added support for AudioUnit MusicEffects (but no MIDI support).
(Linux) Set the per-user files directory per the program name set in configure.
(Linux) Changed the default location of the Audacity temporary directory to be in /var/tmp not /tmp, so preserving the directory between reboots.

Bug fixes for:

Interface:

* Cutting or copying from a track at a given sample rate into a track at another rate resulted in speed-changed audio.
* Generating inside a clip could modify the clip length or create spurious clips.
* Recorded stereo tracks were only half the height of imported or generated stereo tracks. Imported stereo files had a "1" appended to the track name.
* Edit > Region Save did not save the cursor position.
* (Windows) Projects crashed when clicking rapidly inside the interface or when applying repeated effects towards the end of audio tracks.
* (Windows) Some Unicode characters could not be typed into labels,or caused a freeze using some input methods.
* (OS X) Crash when quitting an empty project window, or when closing the main project window while a progress dialog was on screen.
* Numerous other interface fixes including Dependencies dialog, Keyboard Preferences and spurious lines drawn on waveform.

Imports and Exports:

* Support added for later versions of the optional FFmpeg library up to current FFmpeg HEAD. This should significantly improve FFmpeg support on Linux. FFmpeg downloads for Windows and Mac updated to v0.6. This fixes mono AAC files importing as stereo, though current 0.5 versions of FFmpeg will still work.
* Both FFmpeg and LAME should now be properly detected even when other versions of those libraries exist on the system.
* New warning (on by default) for importing uncompressed audio files. Better error messages when read-directly uncompressed files are missing.
* Imported ID3v2 metadata tags were removed when exporting without the Metadata Editor appearing (for example, when using an export command in Chains). Note: As a result of this fix, ID3v1 tags must now be written by exporting using (external program) and an installed LAME.
* U-Law/A-Law files with WAV headers now use the standard 18 byte fmt chunk, so should now be recognised by most telephony applications.
* Variable bit rate MP3s exported using "MP3 Files" were larger than necessary because using the bit reservoir was disabled.
* (OS X) Files imported from iTunes could create invalid characters in the .aup project file, causing an error when re-opening the project. Note: An error "reference to invalid character number" will still occur if re-opening a project created in previous Betas that contains such characters. To fix the issue, open a back-up copy of the .aup file in a text editor, turn off word wrap, then in the line indicated in the error message, remove the string of characters that starts with &# and ends with a semi-colon (;).

Other bug fixes:

* Nyquist effects: fixes for crashes, incorrect slider behaviour and better support for backslashes, double quotes and Unicode characters.
* (Windows and OS X) Processing of VST effects was substantially slower than in previous versions of Audacity.
* (OS X 10.5 PPC) A first-time installation of Audacity Beta would hang on launch if VST effects were detected.
* (Linux) Recordings made with the pulse device crashed or stalled when using overdub and/or software playthrough.
* (Linux) Play-at-Speed crashed at 0.08 speed or lower if Audacity was configured with libsamplerate.

Changes and improvements:

* Control Toolbar renamed to Transport Toolbar.
* Device Toolbar (on by default) now contains all input and output device choices, including host and recording channels. Input/output choices are no longer in Mixer Toolbar on Windows XP or some older operating systems. New Transport > Rescan Audio Devices menu item to refresh the device list.
* New "Sync-Lock Tracks" feature (turned on in the Tracks menu) to allow groups of audio and/or label tracks to retain synchronisation when the track length changes.
* Equalization: New "Manage Curves" dialog for importing and exporting curves.
* Noise Removal: New "Sensitivity" slider to adjust the noise threshold, and new option to isolate noise.
* New "Extended Import" Preferences for specifying different importers to open specific file extensions.
* Improved Automatic Crash Recovery with all project changes autosaved.
* MIDI tracks can be vertically zoomed, time shifted and display bar lines. Note: the channel selection buttons are not available in 1.3.13.
* (Windows and Linux) The window Close button and other system close or shutdown commands now quit on closing the last window. File > Close now always clears to a new, empty project.
* (OS X) Simpler installer with top-level "Audacity" folder.

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:
o Excessive memory consumption led to slow processing or crashes
o Values appearing in text boxes not always the default or previously entered values
o 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 for:
* 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/

* FFmpeg support (downloadable separately) permits import and export of a much wider range of file formats, including WMA, M4A and AC3, plus import of audio from video files
* On-demand loading of uncompressed files eliminates the wait before files can be played or edited
* Linked audio and label tracks allow labels to move with their corresponding audio when cutting, pasting or changing speed or tempo
* Hierarchical plug-in grouping for built-in plug-ins