Audacity for Mac はオープンソースのクロスプラットフォームのオーディオエディタとレコーダーです。 Audacity はサウンドの録音や再生、WAV、AIFF、MP3、OGG ファイルの読み込みと書き出しが可能です。カット、コピー、ペースト機能（無制限の元に戻す機能）、トラックのミキシング、またはエフェクトの録音を使用してサウンドを編集します。 Audacity for Mac には...
What's new in this version:
- New feature Dropout detection is controlled from a setting in Recording Preferences called "Detect dropouts"
- When this setting is "on" (default setting) Audacity will detect dropouts (brief gaps in the recording) and will insert zeroes into the recording to keep the other good parts synchronized. These silent spans will make the dropouts more obvious, but keep the duration of the recording correct. Dropouts may be caused by a disk drive that cannot keep up with the recording. This can happen, for example, with a slow USB or network drive, or if antivirus software is slowing writing to disk, or if other activity on the computer is slowing the computer down
- When recording stops, a Warning message is shown and a label track, called "Dropouts", is added showing the lost parts, labeled with consecutive numbers
Zooming with the mouse wheel - Mouse wheel zooming has been changed so that the focus for the zoom is:
- With the mouse pointer outside the selection, the leftmost or rightmost edge of the current selection, (if a selection exists)
- Mouse pointer position will be used as the zoom focus if the mouse position is inside the current selection, (if a selection exists)
- If no selection is present, zoom focus is as it was before and is taken as the mouse pointer position
- A new command has been introduced, Zoom Toggle, accessed by a new button or by View > Zoom > Zoom Toggle (shortcut Shift + Z)
- Zoom Toggle toggles between two pre-defined zoom levels. These presets are user selectable in Tracks Preferences
- Defaults are normal Default Zoom level and 4 Pixels per Sample (which shows a fraction of a second of audio as samples)
- Either of the two presets can be changed in Tracks Preferences using the dropdown menus
Vertical zooming changes:
Simple Vertical Scrolling:
- A context menu has been introduced for the Vertical Scale. This is activated by right-clicking in the Vertical Scale
Advanced Vertical Zooming:
- Left-click, and click&drag, in the Vertical Scale remain available as a user-selectable option. The default setting is "off",
- You can turn on advanced mode for vertical zooming from Edit > Preferences > Tracks Behaviors and selecting Advanced Vertical Zooming
- A new Extra menu has been created from consolidating the Ext-Bar and Ext-Command menus that were introduced in the previous 2.2.1 release
- In dark theme, the change in appearance of sliders when you hover over them is greater than before
- In light and dark themes, buttons such as 'pause' and 'pin' now highlight when you hover over them and they are down. Previously there was no visible change
- The hover effect for buttons when they are up has been changed to work better in conjunction with this change
- In dark theme the microphone and speaker icons are now brighter and not dulled as they were before
- For menu commands that are enabled (not grayed-out) if you hold the Shift key and click on the sub-menu item, instead of executing the command the Keyboard Preferences pop open at the chosen command. You can then change that (or any other) shortcut binding
- Interface Preferences has been upgraded so when selecting languages the proper spelling of these languages is shown with accented and special characters
- The Index page in the Manual has been upgraded - so that now any item that can be clicked on/through in the front page imagemap now has a corresponding text entry in the index (this is primarily as an aid to VI (Visually Impaired) users) Additionally the Index has been divided into alphabetic sections to aid readability
- For those who really have to know, the list of bugs fixed in 2.2.2 is here
- Multiple use of "Save As" to the existing open project can result in data corruption/loss
- Crash undoing during record, using Discard button of History window
- Exporting audio in compressed formats to device with insufficient space produces inconsistent/truncated results
- In Export Multiple, Cancel does not remove the file that is in progress when Cancel is chosen
- Crash using SBSMS pitch change at low sample rate
- Installer has old logo for 2.2.1 and 2.2.0
- (Mac) Equalization: "Telephone" curve displays a flat line, no sound on Preview
- Toolbars: open undocked if previously not shown, unless Reset Toolbars first
- Analysis effects that create labels should give focus to label track
- Control value may be out of range when using FloatingPointValidator
- Analysis effects produce false indication that a label is open for editing
- Import Uncompressed File Dialog Incorrect Reference to Menu Item
- Wave Color not grayed out in TCP dropdown menu when in Spectrogram view
- Hover indication on note track channel toggle appears on all tracks (when they rerender)
- Unicode page encodings fixed
- Un-muting with a single track unnecessarily activates the Solo button
- Applying chain to file should zoom-to-fit
What's new in this version:
- You can optionally change the colorway of the waveforms displayed in your project. The setting is per track and not per project so you can have multiple colorways in the same project as in the image below
- Four colorways are available with the color selection made from the dropdown menu in the track's Track Control Panel
"Save Other" reverts to "Export" in the File menu:
- When we made the menu changes for 2.2.0 we introduced an entry into the File menu called "Save Other" which led to a sub-menu for exporting various audio formats
- Many users were confused by this change and found it hard to find where they could export audio from. So for 2.2.1 we have changed that menu entry to be File > Export.
- We fixed a bug on Mac that caused Audacity to crash with certain Chain files. Plus we fixed another Mac bug whereby opening a second project from Mac's Finder produced a second inaccessible instance of Audacity
What's new in this version:
- Four Selectable themes provided, with new 'Light' theme as default, plus option to customize
- Menus Reorganized
- Extended menu bar provided
- New keyboard commands for working with clips
- Help buttons ? in Preferences, Effects, Generators and Analyzers - and other places
- Non-Greying out of effects when no selection (and explanatory dialog with help button)
- Playback of MIDI (and Allegro) files imported into Note Tracks is now available
- 'Center' option in Selection Toolbar
- Stem plots
- Major overhaul to documentation/manual including many new images and streamlined text on landing pages for in-program help
- Append-record is now the default (use Shift + Record for old behavior, to record on a new track)
- The Esc key now cancels all click-and-drag actions. It also chooses among overlapping mouse click targets, which is especially useful in the Multi-Tool
- Sync-Lock button removed (use menu item or keyboard shortcut instead)
- New preferences and preference pages
Overhaul of much code:
- Overhaul of envelope handling code to deal with some anomalies
- Overhaul of exception handling for greater safety
- New Logo
- Major work on bug fixing. 198 bugs that were in 2.1.3 fixed for 2.2.0
- The most serious bug fixed this time round was bug 437 which was about what happens when Audacity is recording and runs out of storage
- The problems of incomplete support for macOs Sierra have been resolved (including bug 290, bug 1567, bug 1702, and bug 1703)
- Most of the bugs fixed were more minor, such as bug 463 which was about a case in which the numbering on the timeline could display incorrect times
What's new in this version:
- (Windows) Windows 10 is now supported (there should be no "Internal PortAudio Error" or failure to find any devices as long as the built-in audio devices are enabled)
- (macOS) We now support Trackpad and Magic Mouse horizontal scroll without SHIFT key and Trackpad pinch and expand to zoom at the pointer
- PortAudio upgraded to r1966 - includes Windows 10 fix
- Extensive work to eliminate memory leaks
- Pinned (fixed and centered) play/record head for playing and recording
New scrubbing features:
- Scrub Ruler
- Scrub Toolbar (off by default, enable it at View > Toolbars)
Effects and Generators:
- Effects, edits and other functionality are now not grayed-out when paused during playback or recording and thus the editing functions can be selected and performed
- New Distortion effect (replaces Leveller)
- Change Tempo and Change Pitch have new options to use the higher quality but slower SBSMS algorithm, which ensures the selection length does not change and no content is lost.
- Click Track generator updated and renamed to "Rhythm Track" with improved sounds and new "Swing amount" control for unequal beat duration.
- New Generator for Sample Data Import
New and changed shortcuts:
- ALT + RIGHT to Move to Next Label and ALT + LEFT to Move to Previous Label. These shortcuts allow the name of the label and its order in the labels in that track to be read by screen readers. As well as moving the edit position, these shortcuts jump playback to the requested label.
- The shortcut for Play/Stop and Set Cursor has changed from SHIFT + A to the more easy to use X.
New and changed menu items:
- New Edit Menu items "Store Cursor Position" and "Select > Cursor to Stored Cursor Position" (during transport, the position of the playback or recording cursor is stored)
- > Edit > "Region Save" and "Region Restore" renamed to "Store Region" and "Retrieve Region" respectively
- New Tracks Menu item "Type to Create a Label (on/off)" (turning it off prevents shortcuts accidentally creating labels in the focused label track)
New options and preferences:
- New option when exporting MP3 to mix to mono
- New recording preferences for naming of recorded tracks
New Timer Record features:
- Options on completion e.g. Save and/or Export, quit Audacity, shut down (on Windows)
- More informative dialogs, including warnings on disk space
- Protection against accidental canceling
- (Linux) On Linux only, Audacity now supports FFmpeg/libav up to avformat/avcodec 57.x.x, which is compatible with current FFmpeg 3.x.x releases
- (Mac) On Mac, audacity.app is now added to /Applications/ directly rather than adding a folder there
- Audacity is now digitally signed on Mac and Windows (but not Windows XP).
- Added Audacity Tour Guide to Manual
- Added New features in this release to Manual
- Incorrect calculation of free disk space when using 24 bit audio
- (Windows) ReaPlugs plugins froze Audacity upon interacting with the plugin
- In 2.1.2, closing an effect window using the red close button at top left rather than the button on the dialog led to a crash
- (Mac and Linux) Nyquist effects were excessively slow when a label track was present. This fix has also speeded up Nyquist effects generally compared to Audacity 2.1.2
What's new in this version:
- 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.
- 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.
- 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).
- 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.
- 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.
What's new in this version:
- 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.
- 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.
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.
- (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.
- 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.
- 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.
What's new in this version:
- Interface: Redesigned, searchable Keyboard Preferences with Tree, Name and Key views.
- Interface: Edit Menu: "Cut" and "Delete" are now in the top level of the menu.
- Interface: Transport Menu now includes "Play/Stop" and "Play/Stop and Set Cursor" (use Keyboard Preferences to create shortcuts for "Play" and "Stop").
- Interface: Tracks Menu now includes "Mix and Render to New Track".
- Interface: Track Drop-Down Menu now has Move Track To Top and Move Track To Bottom.
- Interface: New right-click menu choice "Delete Label" to remove single labels.
- Interface: "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.
- Interface: "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.
- Effects: 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.
- Effects: VST effects now support standard FXP presets.
- Effects: 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.
- (Linux) Self-compiled builds of Audacity now search for system LADSPA effects in /usr/lib/ladspa.
- Interface: Region Restore did not restore the region after using Preferences.
- Interface: Dragging selections with the keyboard or Selection Toolbar digits was very slow.
- Interface: (Windows) Help > About Audacity crashed when run in Magyar language.
- Interface: (OS X) Some full and reduced Menu Bar items were not translated.
- Interface: (OS X and Linux) Fixed various interface crashes.
- Effects: Reverb and Paulstretch were missing from Chains.
- Effects: Analyze > Contrast could report very inaccurate rms levels.
- Effects: Noise Removal: Attack and decay times were half as long as set.
- Effects: (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.
What's new in this version:
- 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.
- Frequent crashes occurred on importing audio files on some machines.
- Files did not open using Finder "Open with", double-clicking the file or dragging the file to the Audacity icon.
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.
-> TabB and Shift+Tab when the label track has focus now always move forwards or backwards respectively to the nearest label.
- 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.