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README.txt
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Audacity(R): A Free, Cross-Platform Digital Audio Editor
WWW: http://audacityteam.org/
We welcome feedback on Audacity, suggestions for new or improved features,
bug reports and patches at:
Personal support with Audacity is not provided by e-mail, but on our Forum:
http://audacityteam.org/forum/ .
Audacity is copyright (c) 1999-2015 by Audacity Team. This copyright notice
applies to all documents in the Audacity source code archive, except as
otherwise noted (mostly in the lib-src subdirectories).
The documentation for Audacity is licensed under the Creative Commons
Attribution 3.0 license:
http://creativecommons.org/licenses/by/3.0/legalcode .
"Audacity" is a registered trademark of Dominic Mazzoni.
Version 2.1.1
Contents of this README:
1. Licensing
2. Changes since version 2.1.0
3. Known Issues at Release
4. Source Code, Libraries and Additional Copyright Information
5. Compilation Instructions
6. Previous Changes going back to version 1.1.0.
--------------------------------------------------------------------------------
1. Licensing
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version. The program source code is also freely
available as per Section 4 of this README.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU General Public License
along with this program (in a file called LICENSE.txt); if not, go
to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html or write to
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307 USA
-------------------------------------------------------------------------------
2. Changes since version 2.1.0:
Changes and Improvements:
* Effects:
* Built in effects now support presets.
* New Limiter effect replaces Hard Limiter effect.
* New Crossfade Clips effect to apply a simple crossfade to a selected
pair of clips in a single audio track.
* Can now add/remove effects from Generate and Effects menus.
* New version of Vocal Removal Effect.
* Classic Filters' now included as an opt-in effect.
* Interface:
* Much faster editing with larger projects, thanks to a faster method
for storing the autosave recovery file.
* Performance improvements for Draw Tool and zooming of Spectrogram views.
* Zero-padding Spectrograms Preference smooths the image for short
window sizes.
* Scrubbing and Seeking, including backwards play.
* Quick-Play from Timeline enhancements, particularly for looping.
* (Windows) Language of Audacity user interface is now set in installer.
* More VI usability enhancements for track focus & navigation.
* Other Changes:
* Upgraded to Nyquist 3.0.9 and libflac 1.3.1.
* Upgraded LV2 libs, LV2 GUIs on Linux, LV2 factory Presets.
* Crash report integration.
* Modules can be enabled in Preferences. Mod-nyq-bench available as an
experimental module (but not in the default download).
Bug fixes:
* Crashes
* Crash using Undo while dragging sample points
* Crash using File > Close on project window when Screenshot Tools was
open.
* FFmpeg Custom Export: Crashes importing presets.
* (OS X) Crash closing Track Gain or Pan adjustment box.
* (OS X) Crash closing project window between save project dialogues
* (Linux) TAL VST (but not other VST's) crashed if previewing built-in
effect
* (Linux) SPACE could not be used/could crash in context menus that have
a checkbox.
* Interface
* LV2 effects did not use parameters when using Chains.
* Built in Generators were not usable in Chains.
* Plot Spectrum could not change values without losing focus.
* Track dropdown menu settings could affect other tracks.
* Slight mismatch of vertical scale with linear spectrogram view.
* RTP effect Play/Stop button remained deactivated after built-in preview
ended.
* Contrast: "Move forward or backward through active windows" did not
refocus Contrast.
* LADSPA and LV2 generate plug-ins failed when white space selected.
* Mac OS X
* Confusing behaviour importing / exporting AU presets. In particular,
Apple Audio Units silently applied an imported preset.
-------------------------------------------------------------------------------
3. Known Issues in 2.1.1:
For known issues at release of 2.1.1 please see:
http://wiki.audacityteam.org/wiki/Release_Notes_2.1.1#known
Please also check:
http://wiki.audacityteam.org/index.php?title=Known_Issues
for details of any issues that have been identified after release of
this version.
-------------------------------------------------------------------------------
4. Source Code, Libraries and Additional Copyright Information
Source code to this program is always available; for more information visit
our web site at:
http://audacityteam.org/download/source
Audacity is built upon other free libraries; some of these libraries may have
come with Audacity in the lib-src directory. Others you are expected to install
first if you want Audacity to have certain capabilities. Most of these libraries
are not distributed under the terms of the GPL, but rather some other free,
GPL-compatible license. Specifically:
expat: BSD-like license.
Provides XML parsing. Included with Audacity.
FFmpeg: GPL or LGPL (according to how you obtain/configure it)
Provides decoding/encoding of additional formats. Optional separate
download.
libid3tag: GPL
Reads/writes ID3 tags in MP3 files. Optional
separate download as part of libmad.
libflac: Xiph.Org BSD-like licence (the parts we use)
Decodes and Encodes Free Lossless Audio Codec files. Optional separate
download.
libmad: GPL
Decodes MP3 files. Optional separate download.
libnyquist: BSD-like license.
Functional language for manipulating audio; available
within Audacity for effects processing.
libogg: BSD-like license.
Optional separate download, along with libvorbis.
libsndfile: LGPL
Reads and writes uncompressed PCM audio files.
Included with Audacity.
libsoxr: LGPL
The SoX Resampler library performs one-dimensional sample-rate conversion.
libvamp: new-style BSD
Plug-in interface and support library for audio analysis plug-ins.
Included with Audacity.
libvorbis: BSD-like license.
Decodes and encodes Ogg Vorbis files. Optional
separate download.
lv2: a merging of the lilv (ISC license), lv2 (LGPL), msinttypes, serd (ISC),
sord, sratom, and suil libraries to support LV2 plug-ins.
portsmf: BSD-like license.
library for reading and writing midi files. Included with Audacity
sbsms: GPL v2
Pitch and tempo changing library. Included in Audacity
SoundTouch: LGPL
Changes tempo without changing pitch and vice versa.
Included in audacity
Twolame: LGPL
Encodes MPEG I layer 2 audio (used in DVDs and Radio). Optional separate
download.
wxWidgets: wxWindows license (based on LGPL)
Cross-platform GUI library - must be downloaded and
compiled separately.
For more information, see the documentation inside each library's
source code directory.
--------------------------------------------------------------------------------
Additional copyright information:
--------------------------------------------------------------------------------
Nyquist
Copyright (c) 2000-2002, by Roger B. Dannenberg
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
Redistributions of source code must retain the copyright notice, the
list of conditions, and the disclaimer, all three of which appear below under
"COPYRIGHT AND LICENSE INFORMATION FOR XLISP."
Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
Redistributions in binary form must reproduce the copyright notice, the
list of conditions, and the disclaimer, all three of which appear below under
"COPYRIGHT AND LICENSE INFORMATION FOR XLISP," in the documentation
and/or other materials provided with the distribution.
Neither the name of Roger B. Dannenberg, Carnegie Mellon University, nor the
names of any contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
COPYRIGHT AND LICENSE INFORMATION FOR XLISP (part of Nyquist):
Copyright (c) 1984-2002, by David Michael Betz
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
Neither the name of David Michael Betz nor the names of any contributors may be
used to endorse or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--------------------------------------------------------------------------------
5. Compilation instructions
First you must download wxWidgets. Audacity 2.1.1 requires wxWidgets 2.8.12
from:
http://www.wxWidgets.org/ .
The libsndfile library is also required and is included in Audacity obtained
from SVN.
CMake ( http://www.cmake.org/ ) is required to build the local copy of
libsoxr (Audacity's default resampling library) unless you install
libsoxr-dev and use that system library.
Installation of other libraries is optional, see:
http://wiki.audacityteam.org/wiki/Developing_On_Linux#optional .
If you install libraries using a package management system like Apt or RPM,
you need to install the "dev" (development) packages for each library.
To compile on Linux, Mac OS X and other Unix systems, execute these
commands:
./configure
make
make install # as root
To see compile-time options you can set, you can type
./configure --help
If you want to do any development, you might want to generate a configure cache
and header dependencies:
./configure -C
make dep
To compile on Windows using MSVC++, please follow the instructions in
win\compile.txt in the source code.
To compile using Xcode on Mac OS X, see the instructions in mac/compile.txt.
For more information on compilation, please visit:
http://wiki.audacityteam.org/wiki/Developer_Guide#Platform_Specific_Guides
or ask at:
http://forum.audacityteam.org/viewforum.php?f=19 .
--------------------------------------------------------------------------------
6. Previous Changes going back to version 1.1.0
Changes in version 2.1.0:
Bug fixes:
* Interface:
* Typing "j" or "k" in a label track activated the "move cursor" shortcut.
* Spectrogram log (f) view displayed incorrectly until vertically zoomed.
* Fixed crash after zooming out on vertical scale beyond +/-1.0.
* Selections made with Selection Toolbar were not restored after Undo.
* Undo could fail silently if a selection included/touched a clip boundary.
* Imports and Exports
* If there were invalid FFmpeg libs in system PATH this prevented Audacity
recognising the installed FFmpeg or the FFmpeg specified in audacity.cfg.
* Mac OS X:
* Fix uninitialized buffer - this should correct playback buzz or crackle
where the upper of multiple tracks started with or contained white space.
* Device names were corrupted when using system language other than English.
* Fixed crashes using (external program).
* Waves v9 Audio Units should now work correctly.
* GNU/Linux:
* Fix "Audacity already running" error when using the command-line or
context menu to open multiple or further files.
* Fix segfault exporting an FFmpeg format to an unwritable folder.
* Fix silent failure exporting FFmpeg, MP2 or OGG to an unwritable folder.
* Fix ENTER activated an effect when OK button was greyed out.
* Operating system and sound device support:
* (Windows) Audacity 2.1.0 requires Windows XP SP3 (32-bit) or XP SP2
(64-bit), Vista, Windows 7, Windows 8 or 8.1.
* (Windows) Audacity is now compiled using Visual Studio 2013.
* (Windows) Recording with WASAPI host now includes experimental support
for physical inputs (up to 24-bit depth) as well as loopback recording.
* (OS X) 10.10 (Yosemite) is now supported including Apple Audio Units.
* Please report any issues with WASAPI recording/playback or Yosemite
to http://audacity.sourceforge.net/contact/#feedback .
* (Linux Ubuntu) Under Unity, keyboard shortcuts are not visible in the
Audacity menus. Keyboard shortcuts are visible if you install the classic
GNOME Flashback interface or under Unity if you open Audacity with the
UBUNTU_MENUPROXY=0 environment variable. Audacity compiled from source
will ship with src/audacity.desktop.in set to UBUNTU_MENUPROXY=0 but it
will remain up to distributions to use this desktop file.
Changes and Improvements:
* Effects:
* LADSPA, VST and Audio Unit (OS X) effects now support real-time preview,
save/load of user presets and saving effect settings across sessions.
Note: Real-time preview does not yet support latency compensation.
* VST effects now support import/export of FXB preset banks.
* Shell VST effects that host multiple plugins are now supported.
* All Effect Menu items (built-in or plugin) can now be used in a Chain.
* Items in the Effect, Generate or Analyze Menus can be sorted or grouped
by name, publisher or class of effect.
* Noise Removal is improved and renamed to "Noise Reduction".
* Change Speed has new time controls for current and new length. You can
now enter the speed change as a multiplier e.g. "2" is twice as fast.
* New "Crossfade Tracks" effect can be used for crossfading two tracks.
This replaces Cross Fade In and Cross Fade Out.
* Nyquist Prompt and most shipped Nyquist effects now have Preview button.
* Interface:
* Redesigned Meter Toolbars: The default shows separate Record and Playback
Meters, half-height so they can be wider while docked, in gradient style.
* A frequency selection can now be made (and spectral edit effects applied
to those frequencies) when in a spectrogram view. You can also create
or adjust frequency selections in a new "Spectral Selection Toolbar"
(available at View > Toolbars).
* Transcription Toolbar (Play-at-speed) can now loop play and cut-preview.
* Timer Record now saves recordings automatically into an existing project.
* New Armenian translation.
Changes in version 2.0.6:
Bug fixes for:
* Interface:
* Region Restore did not restore the region after using Preferences.
* Dragging selections with the keyboard or Selection Toolbar digits
was very slow.
* (Windows) Help > About Audacity crashed when run in Magyar language.
* (OS X) Some full and reduced Menu Bar items were not translated.
* (OS X and Linux) Fixed various interface crashes.
* Effects:
* Reverb and Paulstretch were missing from Chains.
* Analyze > Contrast could report very inaccurate rms levels.
* Noise Removal: Attack and decay times were half as long as set.
* (OS X and Linux) Nyquist effects ran much more slowly than on Windows.
* Click or drag on the Timeline after Loop Play continued to loop.
* Transcription Toolbar did not play slower than 0.1x speed.
* (Linux) Audacity did not build if python 2 was not available.
* Projects did not reopen correctly if they contained tracks having
2^31 samples or greater of audio (just over 13.5 hours at 44100 Hz).
Changes and Improvements:
* Interface:
* Redesigned, searchable Keyboard Preferences with Tree, Name and Key views.
* Edit Menu: "Cut" and "Delete" are now in the top level of the menu.
* Transport Menu now includes "Play/Stop" and "Play/Stop and Set Cursor"
(use Keyboard Preferences to create shortcuts for "Play" and "Stop").
* Tracks Menu now includes "Mix and Render to New Track".
* Track Drop-Down Menu now has Move Track To Top and Move Track To Bottom.
* New right-click menu choice "Delete Label" to remove single labels.
* "Snap To" now offers choice of snap to the "closest" or "prior" position.
Note: the previous "Snap To On" keyboard shortcut will no longer work.
* "Snap To" settings are now independent for each project.
* Effects:
* Truncate Silence: redesigned with simpler option "Truncate Detected
Silence" to shorten to the specified length without compressing silence.
* VST effects: New "Settings" dialog lets you specify buffer size (for
faster processing) and enable buffer delay compensation (to prevent
inserted silence). Compensation may cause a crash in a few plug-ins.
* VST effects now support standard FXP presets.
* LV2 effects are now supported on all platforms (textual interface only).
* Import or export using FFmpeg now requires FFmpeg 1.2 or later (or libav
0.8 or later). For recommended downloads of recent FFmpeg please visit:
http://manual.audacityteam.org/o/man/faq_installation_and_plug_ins.html#ffdown .
* New Tamil translation (largely complete).
* (Windows) FLAC exports can now exceed 2 GB in size.
* (OS X) Easier Audacity installation using the DMG: drag the Audacity folder
to the /Applications shortcut.
* (OS X) Audacity 2.0.6 will not officially support OS X 10.10 Yosemite when
released (in particular, Apple Audio Units may not open in Audacity).
* (Linux) Self-compiled builds of Audacity now search for system LADSPA
effects in /usr/lib/ladspa.
Changes in version 2.0.5:
Bug fixes for:
* Shaped dither was corrupted and too loud on all stereo exports except FLAC.
* Keyboard Preferences: some Edit and Align commands for different sub-menus
showed the same name.
* Recordings stopped with "Stop and Set Cursor" shortcut could not be undone.
* In locales that use comma for decimal separator:
* Text boxes with slider in Nyquist effects only produced whole numbers
when using comma to enter a fractional number. Text boxes without
slider still have this problem.
* Built-in generators produced silence after running a Nyquist effect.
* (Windows) When first changing to Windows WASAPI host, the input volume slider
in Mixer Toolbar was enabled when it should have been permanently disabled.
* (Windows) On some machines, launching Audacity then recording from the current
Device Toolbar input would not record until the input was reselected.
* (OS X) Frequent crashes occurred on importing audio files on some machines.
* (OS X) Files did not open using Finder "Open with", double-clicking the
file or dragging the file to the Audacity icon.
* (Linux 64-bit) Fixed a crash when using Equalization.
* (Linux) It was not possible to open an effect or other dialog then navigate
through the dialog using TAB.
* (Linux) The Play shortcut did not play a read-directly WAV, AIFF or FLAC
import if the warning for importing uncompressed files appeared.
Changes and Improvements:
* Tracks Menu:
* The separate commands that aligned track start or end with the cursor or
with selection start are combined into "Cursor/Selection Start" commands.
* "Align and Move Cursor" renamed to "Move Selection when Aligning".
* Label Tracks:
* Labels Editor now allows empty labels to be saved on closing the editor.
* TAB and SHIFT+TAB when the label track has focus now always move forwards
or backwards respectively to the nearest label.
* (Windows) On a very few machines, the Windows WDM-KS low latency audio host
introduced in Audacity 2.0.4 caused Audacity to hang or the computer to
crash. WDM-KS has been removed from 2.0.5 until it can be safely enabled.
* (Windows and OS X) Screen reader improvements for Install VST Effects dialog.
* (OS X) Audio Unit plug-ins detected by Audacity on launch are now not loaded
until chosen from the Effect menu. This should speed up launch and avoid
crashes at launch due to misbehaving Audio Units.
* (Linux) Update to PortAudio r1910 fixes memory and other bugs under ALSA.
* (Linux) Applied fix for wxGTK 2.8.12 bug which resulted in loss of Audacity's
menu bar (or visual corruption under Unity) on Debian-based systems.
Changes in version 2.0.4:
Bug fixes for:
* Keyboard Preferences: Shortcuts for Generators, Effects and Analyzers
were not exported. All imported shortcut changes were discarded.
* Equalization curves were corrupted in Graphic EQ mode after switching
to/from Draw Curves or after running the effect then reopening it.
* Change Pitch displayed corrupted values when reducing pitch or editing
"from" Frequency. Detection was very inaccurate at high sample rates.
* Bass Boost no longer clips if the track contains 32-bit audio.
* Auto Duck was excessively slow on older machines.
* (Windows) Exported MP3 comments tags were not seen by Windows programs.
* (Windows and OS X) Audacity crashed if you used system quit before
file import was complete.
* (Linux) Equalization crashed Audacity if the XML file was corrupted.
* (Linux) When configuring effect parameters in "Edit Chains", "Preview"
(not intended to be functional) caused a crash.
* (Linux) LICENSE.txt and README.txt were wrongly installed in
/usr/local/share/doc instead of /usr/local/share/doc/audacity/ .
* Accessibility: ENTER did not toggle selectedness of a label track unless
a label was selected.
* Numerous other interface fixes.
Changes and Improvements:
* New "Reverb" effect to replace GVerb, based on the original "Freeverb".
* New View > Go to Selection Start and Go to Selection End commands.
* New "Align End to End" command to append existing tracks to each other.
* Change Tempo now supports fractional BPM.
* Plot Spectrum now supports FFT sizes up to 65536.
* WAV files now support "Album Title", "Track Number" and "Genre" LIST INFO
tags and also support ID3 tags.
* Handle a bug in older iPods or some OS X applications that cause them to
refuse AIFF files whose metadata contains an uneven number of characters,
* (Windows) Added support for "Windows WDM-KS" host which can provide very
low latencies if you reduce "Audio to Buffer" in Recording Preferences.
* (Windows Vista and later) You can now record computer playback by choosing
the new "Windows WASAPI" host in Device Toolbar then a "loopback" input.
* (Windows and Mac OS X): VST scanning dialog now replaced with a dialog
for choosing which VST effects to load.
* (Linux) CTRL + ALT can now be used to smooth samples in Draw Tool.
* Modules Preferences replaced with a dialog on launch of Audacity
enabling you to choose which modules to load.
Changes in version 2.0.3:
Bug fixes for:
* Crash using Undo whilst time-shifting a track.
* Crash using Repair if the selection extended into an empty track.
* Export Multiple didn't prevent export if there was no audio or
all audio was muted. This allowed export of small invalid files.
* Time Track:
* Loop Play of a speeded-up track inserted silence.
* Playback and rendering was significantly inaccurate, creating
audible and visual glitches.
* Accessibility:
* The mnemonics character "&" was read out by screen readers in
most of the Preferences choices.
* NVDA did not read static text in most dialogs. Text can now be
read by using INSERT + B.
* JAWS and Window-eyes misread the "Duration" control in Silence
Generator.
* Toolbar buttons could not be pressed by ENTER
* Other interface bug fixes.
Changes and Improvements:
* The SoX Resampler library (libsoxr) has replaced libresample in
Audacity releases, offering both higher quality and greater speed. .
* Time Tracks new features:
* "Set Range" now changes only the range of the Time Track,
preserving the pitch/speed set by any existing warp points.
* Vertical scale added with options for linear and logarithmic
display and interpolation.
* Upper and lower speed limits will now be remembered when saving
and reopening a project in 2.0.3. Warp points in projects saved
by previous Audacity versions will be correctly restored in 2.0.3.
* Warp points saved in a 2.0.3 project will be preserved if opened
in previous versions but playback and display will be incorrect.
* New effects:
* Studio Fade Out (uses a filtered "S" curve).
* Adjustable Fade (accessible effect for creating partial fades
and adjustable fade shapes).
* Bass and Treble (replaces Bass Boost).
* Real sample rates up to 384000 Hz are now supported for playback
and recording in high resolution devices (the maximum is up to
192000 Hz for Windows DirectSound host).
* Labeled Regions in Edit Menu is renamed to "Labeled Audio" and now
allows splits to be placed at point labels. Labeled audio regions
that touch without overlapping are treated as separate regions.
Overlapping labeled audio regions are treated as a single region.
* Compilation: cmake is required in order to build libsoxr.
* New Croatian translation of Audacity.
Changes in version 2.0.2:
Bug fixes for:
* Interface:
* "Retain labels" Interface Preference did not retain labels for
a region that snapped exactly to both label edges.
* Projects did not save the track selected state.
* (OS X, Linux) Timer Record: Interlinking of the Start, End and
Duration controls was broken.
* (Windows) JAWS screen-reader did not read the "Draw curves" and
"Graphic EQ" radio buttons in Equalization correctly.
* Envelopes and Clips:
* Exporting (or any render operation) on a track containing
split lines could create clicks at the split lines.
* Dragging a clip into another track caused a crash if Sync-Lock
Tracks was enabled and there was also a label track.
* Effects and Analysis:
* Normalize could crash if the track name contained "%".
Changes and Improvements:
* Duration controls when generating at a point now default to
hh:mm:ss + milliseconds format. Selection Toolbar also defaults
to that format on first installation or resetting preferences.
* Toolbars visual improvements:
* "Snap To" in Selection Toolbar now has an explanatory tooltip.
* Device Toolbar tooltips now display the selected device.
* Increased default width of Device Toolbar and Meter Toolbar.
* Improvements and some bug fixes to Nyquist effects, including:
* Delay (new option to prevent duration change)
* Sample Data Export (new "L-R on Same Line" layout option)
* Risset Drum (new "Amplitude" slider).
* Importing a labels file writes the file name to the name of the
Label Track, and exporting a labels file offers the name of the
last Label Track in the project.
* Removed the "Audio cache" option from Directories Preferences
due to frequent crash reports. All data operations will now
be written to disk and not to RAM.
* Removed the FFmpeg "On-Demand" option from Libraries Preferences
(this fixes Audacity not building if configured --without-ffmpeg).
* Compilation: Progress on making the Modules feature mainstream.
Modules can now be individually enabled and disabled in Preferences.
Changes in version 2.0.1:
Bug fixes for:
* Interface:
* Selection Toolbar: a value for the previous whole second
displayed if the value was close to a whole second.
* Finding zero crossings could cause the selection to expand into
white space at either side of the clip.
* Clips did not drag to another track if mouse was over a selection.
* Mixer Board: Rendering four tracks resulted in a redundant Track
Strip followed by a crash.
* Imports, Exports and Files:
* Exporting to WAV or AIFF led to a "Libsndfile says" error or
corrupted output due to order of metadata in imported files.
* (Mac) Fixed crashes importing MP3 files on PPC machines.
* (Linux Ubuntu) .Aup files could not be associated with Audacity
(they opened in the web browser instead).
* Effects and Analysis:
* Normalize: Fixed issues where normalization could be to wrong
value if applied with DC offset correction, or if applied to
"read-directly" WAV and AIFF files before On-Demand completed.
* Sliding Time Scale: fixed an audible discontinuity at the
beginning of the processed selection; fixed a serious quality
problem on Linux 64-bit.
* Other miscellaneous bug fixes, including fix to prevent zooming
with mouse wheel or ball scrolling the content off-screen.
Changes and Improvements:
* Shortcuts can now be added in Keyboard Preferences to items in the
Generate, Effect or Analyze menus, including user-added plug-ins.
* Nyquist Effect plug-ins can now be added to Chains.
* New "Paulstretch" effect for extreme slowdown without pitch change.
* New "Sample Data Export" Analyze effect for exporting a file
containing amplitude values for each sample in the selection.
* New Preference (off by default) to import files On-Demand (without
seek ability) when using the optional FFmpeg library.
* New Preference (off by default) to retain labels when deleting a
selection that snaps to the label without extending past it.
* (Windows installer) New option to reset Preferences on next launch.
* (Mac) Audacity now has excellent compatibility with the VoiceOver
screen reader. For details, please see:
http://manual.audacityteam.org/help/manual/man/accessibility.html#mac .
* CleanSpeech Mode (no longer supported) will not now be enabled
even if it was enabled by an earlier version of Audacity.
* Added Serbian (Latin and Cyrillic) translations.
Changes between version 1.3.14 Beta and 2.0.0:
Bug fixes for:
* Interface:
* Fixed playback speed and synchronization problems when dragging
clips or tracks between tracks having different sample rates.
* (Windows) Removed a crash risk where shortcuts could be
used to record or import in one project while importing or
exporting in another.
* Imports and Exports:
* Fixed crashes when changing the sample format of read-directly WAV
or AIFF files using the Track Drop-Down Menu.
* Fixed a crash importing MP3 files that had duplicate metadata tags
(this is a bug in current libsndfile which has been patched in
Audacity; MP3 files mislabeled as WAV which have duplicate tags
will still crash Audacity on Linux if Audacity has been compiled
against an affected version of system libsndfile).
* Fixed an issue where excessively high or corrupted sample values in
the audio could corrupt exports from the start of the problem for
the rest of the file, and could corrupt the rest of the project.
* (Linux) Fixed Audacity could not be compiled against FFmpeg
0.7.x and 0.8.x.
* Effects and Analysis:
* Fixed crash on launch when using "Ambisonic Decoders (PC)" VST
plug-ins and other plug-ins that enable additional floating point
exceptions.
* Fixed Plot Spectrum background could be transparent on some machines.
* Bug fixes for Click Track, High Pass, Low Pass and Vocal Remover.
* Chirp, Tone and Silence generators now remember their settings.
* Other miscellaneous bug fixes.
Changes and Improvements:
* New Interface preference to show the track name in the display (this
is off by default).
* Longer default Playback preference for effects preview and preview
before cut.
* Restored use of Page Up and Page Down to scroll horizontally.
Summary of bug fixes and new features between 1.2.6 and 2.0.0:
* Bug Fixes:
* Labels now accept lower case "z".
* (Windows Vista/7) Pressing Stop after recording could cause a crash.
* (Mac OS X) Fixed shortcut keys activating when typing in file open or
save windows.
* (Mac OS X) Audacity 2.0.0 fully supports Unicode, which fixes an
issue where Audacity could not work with folders having non-English
characters in their name.
* (Linux) Playing existing tracks while recording in mono could cause
recordings to be distorted or low-pitched.
* New features: There are dozens of new features in 2.0.0, including:
* Many effects significantly improved, especially Equalization, Noise
Removal and Normalize. Vocal Remover now included plus GVerb on
Windows and Mac. VAMP analysis plug-ins now supported.
* Improved label tracks with Sync-Lock Tracks feature in the Tracks Menu.
Multiple clips per track. Tracks and selections can be fully
manipulated using the keyboard. Many more keyboard shortcuts.
* New Device Toolbar to manage inputs and outputs. Timer Record feature.
New Mixer Board view with per-track VU meters.
* Automatic Crash Recovery in the event of abnormal program termination.
* Fast "On-Demand" import of WAV/AIFF files if read directly from source.
FLAC now fully supported. Added support for optional FFmpeg library
for import/export of AC3/M4A/WMA and import of audio from video files.
Please visit http://audacity.sourceforge.net/about/features for a full
list of features in 2.0.0. You can click Help > Manual (in web browser)
in the program to read more.
Changes in version 1.3.14 Beta:
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.
Changes in version 1.3.13 Beta:
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.
Changes in version 1.3.12 Beta:
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 when Snep To
was enabled
* Labels can now be reversed if included with the audio selection
* Other bug fixes:
* When using non-English languages, Generate effects truncated the