Release Notes

SoundSource 4.1.4

Released on September 5th, 2019

  • MacOS 10.15 (Catalina) Support
    SoundSource now has preliminary compatibility with MacOS 10.15 (Catalina). However, please note that Apple now requires third-party Audio Unit plugins to be properly signed and notarized. As a result, many older plugins will not load in SoundSource on Catalina (nor in any other modern audio application). The developers of these individual plugins will need to issue properly signed updates to their plugins.

  • ACE Updated to v11
    The backend Audio Capture Engine (ACE) has been updated to 11.0.0, with preliminary MacOS 10.15 (Catalina) compatibility as well as other fixes and improvements.

  • SoundSource now allows custom presets to be overwritten with new settings.

  • An issue where Magic Boost could cause a brief glitch in initial audio playback has been corrected.

  • Closing SoundSource's main app window with the escape key or command + W now returns focus to the app which previously had it.

  • The balance slider now correctly returns to 0 when adjusting via the arrow keys. Its read-outs when using VoiceOver have also been improved.

  • A VoiceOver press of the menu bar icon now works as expected.

  • Several other small bugs have been fixed, including a problem where the history of audio devices could be lost, an issue with the Knowledge Base article for Super Volume Keys not opening as expected, and a flicker when adjusting the menu bar icon.

  • SoundSource now requires MacOS 10.12 (Sierra) or higher. If you're still on 10.11 (or lower), be sure to see our Legacy page.

  • SoundSource's wizard for installing, updating, and removing ACE (among other things) has been overhauled, with many small improvements and enhancements. Update notes are now presented on the first launch of a new version, and the wizard will now intelligently warn if uninstalling will impact other applications.

  • The previous SoundSource 4.1.3 release was withdrawn approximately 20 hours after its release, due to issues loading third-party audio plugins. Its changelog items have been migrated to this subsequent 4.1.4 release.

SoundSource 4.1.3

Released on August 30th, 2019

  • SoundSource 4.1.3 was withdrawn approximately 20 hours after its release, due to issues loading third-party audio plugins. Its changelog items were migrated to the subsequent 4.1.4 release.

SoundSource 4.1.2

Released on July 23rd, 2019

  • SoundSource's Audio Capture Engine (ACE) backend has been updated to 10.1.1, fixing for a rare audio capture issue and providing the most stable audio capture possible.

  • A -999 error has been fixed, allowing the new Release Notes window will now appear as expected on MacOS 10.13 and lower.

  • A minor memory leak has been plugged, as all memory leaks should be.

  • The main popover will no longer incorrectly appear when uninstalling.

  • Small improvements have been made when in Dark Mode, including an update to the License window.

  • SoundSource's Help manual has been improved and streamlined.

SoundSource 4.1.1

Released on July 10th, 2019

  • SoundSource now offers better support for Fast User Switching, allowing each user to run their own instance of the application.

  • Dark Mode support is now more comprehensive, with changes made to all windows across the app when in Dark Mode.

  • The main window will now appear if the icon is double-clicked in the Finder, or clicked in the Dock.

  • The headphone mix from Apogeee Maestro's software will no longer be muted undesirably.

  • The sample rate selector once again correctly shows rates above 192 kHz when relevant.

  • We've corrected an issue where the trial mode warning (but not the actual trial mode limitations) could incorrectly appear early.

  • SoundSource now includes a useful new Release Notes window, so you can see changes across all versions from right inside the app. The Options menu has also been re-sorted for clarity and ease of use.

  • The application now does a better job alerting the user when the software is being run on an unsupported OS.

SoundSource 4.1.0

Released on May 28th, 2019

  • SoundSource now offers support for Dark Mode on MacOS 10.14 (Mojave), with a new Dark theme, and a default “Match System” option. It's also possible to specify which theme is used, independent of the system.

  • It's now easy to adjust audio from the Finder, as well as the OS's “Text to Speech” functionality. Just select these sources from the new “Special Sources” section found in the updated “Add App” Source selector, and you'll be able to control and adjust the audio.

  • SoundSource now offers full Undo support, enabling you to easily revert changes you've made within the app.

  • SoundSource's backend, Audio Capture Engine (ACE), has been updated to 10.1. This update includes several fixes and improvements, for the most stable audio capture possible.

  • Several issues which could cause SoundSource to pinwheel or crash have been fixed. These issues were fortunately quite rare, but also difficult to track down. If you previously experienced anything along these lines, please be sure to update to the latest SoundSource. If any similar problems persist, please let us know!

  • An issue where SoundSource's backend could lock up due to rapid sample rate changes has been fixed.

  • Redirecting audio to Bluetooth devices should now be vastly more reliable (as reliable as Bluetooth can be, anyhow).

  • Sources which have any audio effects applied to them will now be marked with a small “FX” badge.

  • When the mouse pointer is over a slider, it is now possible to swipe or scroll to adjust it.

  • SoundSource's main window now visibly dims when it's in the background, for better clarity.

  • SoundSource now attempts to track USB audio devices across ports. If a device is unplugged from one port and plugged in to a different port, it is now more likely to continue working as desired.

  • SoundSource now offers a helpful secondary menu when right-clicking its menu bar icon.

  • Applications can now be added to SoundSource's list by dragging them into the window. If SoundSource is not currently visible, dragging to the menu bar icon will make the main window appear, and the application can be dropped into the list.

  • SoundSource will now show a warning if a combination of Audio Unit effects will cause 100 ms of latency or more, as this will lead to an audible delay in hearing audio.

  • The “Add App” Source selector has been updated, with interface improvements and other modifications.

  • The behavior of the mute control for Sound Effects has been updated to avoid user confusion.

  • A small number of poor-performing Audio Units are now blocked by default in SoundSource. For more details, please see this support article.

  • SoundSource now remembers up to the last 20 devices, rather than an unlimited (bottleneck-inducing) amount.

  • Plugin windows can now be closed with Cmd-W.

  • Window management and positioning has been improved in several ways. Plugin windows are now smarter about where they appear, and will move as necessary if SoundSource's main window is moved. As well, if SoundSource's app icon is not visible, and its hotkey is pressed, SoundSource now appears in a more logical location.

  • A launching crash which would occur when an in-use Audio Unit plugin was removed from the system has been fixed.

  • When multiple devices with identical names are present, device changes are now better handled.

  • SoundSource should now behave better on setups with multiple screens and/or multiple spaces.

  • A glitch in audio that would occur when audio streams came and went has been fixed. This prevents an undesired issue where Magic Boost could behave in unexpected ways.

  • Scanning for Bluetooth devices has now been greatly improved, fixing a problem where opening a device selector could cause a CPU spike.

  • SoundSource's menus and windows now behave better when using your Mac in full-screen mode and when switching between spaces.

  • An audio dropout which could occur when a large number of plugins were present has been fixed.

  • A cosmetic issue where a highlight on various controls could lag has been fixed.

  • Another cosmetic issue where slider knobs could incorrectly lose their shadows has been fixed.

SoundSource 4.0.2

Released on April 11th, 2019

  • Previously, audio from certain sites (including and might not be correctly adjusted if it was playing in a second audio-producing tab in Chrome. This now works as expected.

  • SoundSource's audio redirection back-end has been modified to only re-direct audio headed for the default system output. This means an app which has its own output selector will not be redirected, if that selector is set to a non-default device. As well, SoundSource's default is now a “Don't Redirect” audio option. For nearly all users, everything should continue to work just fine. For a few users, things should now work as they previously expected.

  • All of SoundSource's volume sliders have been adjusted to better match the system's volume curve.

  • Audio adjustments now sound better when the system output device changes, thanks to some quick and clever audio fades.

  • Several small but worthwhile tweaks have been made to the interface. The floating behavior of all windows has been improved and simplified, and pop-up menus are now properly grayed out when no devices are available. These also include fixes for menu heights and corrections to pop-up menu alignments.

  • When Super Volume Keys are in use, we now mimic the system in all ways, including playing volume feedback (or not) and making smaller adjustments with a Shift-Option-Volume key press.

  • The interface now better explains how a user should proceed when they have no applications in their list for per-app control.

  • The level meter is now dimmed when a source is muted.

  • Some Audio Unit plugins which did not previously load their interfaces properly now will.

  • Compatibility improvements have been made for Apogee Duet hardware (and likely other Apogee devices).

  • Improvements have been made to better handle toggling VoiceOver off or on.

  • Rare crashes on slower machines are now avoided, thanks to arcane changes to the dispatch queue.

  • Other crashes related to misbehaving Audio Units have been worked around.

  • SoundSource's installation procedure has been slightly modified, to better follow standards set by other Rogue Amoeba apps.

  • In order to prevent both audio issues and possible crashes, SoundSource now specifically works to avoid any interference with other audio adjustment software , such as “Boom” or “menuBUS”.

  • The Home app is currently not compatible with SoundSource, and so is now excluded from SoundSource's list of Running Applications.

  • Tidal has been removed from SoundSource's default apps list, as their “hog mode” doesn't play well with, well, much of anything else.

SoundSource 4.0.1

Released on March 28th, 2019

  • Several rare, but undesirable, crashes have been fixed.

  • An issue were SoundSource could incorrectly apply multiple volume adjustments to input devices has been corrected.

  • Volume adjustment blips, (optionally) heard when adjusting the default device volume via the keyboard, will now be heard fully and correctly. Previously, these blips were cut off, leading to confusion about volume levels.

  • A rare issue where certain apps with their own audio device selectors would see incorrect volume jumps has been fixed.

  • SoundSource's Sound Effects volume slider now correctly maps to the system's Sound Effects volume slider.

  • Several bugs have been fixed related to Audio Unit effects, including properly remembering the order of effects between launches, and always opens the right effect when selected.

  • Multiple issues have been corrected with displaying on setups with multiple monitors.

  • SoundSource now properly respects an output device's selected stereo pair, rather than incorrectly being locked to channels 1 & 2.

  • A visual display issue where plugins could appear to be receiving a mono stream of audio has been fixed.

  • SoundSource no longer incorrectly allows multiple copies to launch at the same time.

SoundSource 4.0.0

Released on March 26th, 2019

  • Per-Application Volume Controls Adjust volume levels for each of your applications, all in one place. Make one app louder or softer than others, or even mute it entirely.

  • Per-Application Output Redirection Control exactly where audio plays. Route music from one app to your best speakers, while everything else is heard via your Mac's built-in output.

  • Audio Effects on Any Audio Make any audio sound great, with SoundSource's easy-to-use built-in effects, as well as advanced Audio Unit support. You can apply effects to audio from individual applications, or your entire system.

  • Magic Boost Turn on Magic Boost to boost quiet audio so you can hear it, while louder audio is left untouched. Get richer, fuller sound from any source.

  • Renowned 10-Band Lagutin Equalizer The 10-band Lagutin Equalizer has been a staple in Rogue Amoeba’s audio software for nearly two decades, helping countless users get better sound. It features almost two dozen presets, and the ability to save your own as well. Configure the EQ once to get the exact sound you want, any time you play audio.

  • Fast Access to System Devices Access all the settings for your Mac's Output, Input, and Sound Effects audio devices right from your menu bar. Quickly adjust volume and input levels, balance, and even sample rate.

  • Keyboard Volume Keys for All Too many audio output devices fail to support the volume keys found on Mac keyboards. SoundSource's “Super Volume Keys” setting makes those keys work with any outputs you have! Now you can adjust the volume of any and all audio devices, right from your keyboard.

  • Easy Access SoundSource lives right in your menu bar, for fast and easy access to all your essential audio controls. You can also pin it to your screen, so it floats above everything else, or even set a global keyboard shortcut to pull it forward without needing the mouse.

  • Stupendous Keyboard Control SoundSource can be controlled entirely from your keyboard. Now, you can make lightning-fast audio adjustments without ever needing to touch the mouse.

  • Accessible for All We made SoundSource fully accessible with Apple’s VoiceOver, so users who are visually impaired can get the most from their audio.

  • Handy Level Meters See the levels for your output and input audio devices, as well as individual applications.

  • Much More to See Users of older versions of SoundSource should be sure to visit our New in SoundSource 4 page.

SoundSource 3.1.2

Released on February 8th, 2019

  • SoundSource now uses smarter, less redundant device names.

  • The support form in SoundSource's Support menu has been updated.

SoundSource 3.1.1

Released on September 7th, 2018

  • Custom error reporting has been added for the audio device permission system newly added in MacOS 10.14 (Mojave).

  • Resampled audio quality has been improved.

  • Another update to License window has been made.

  • SoundSource now has compatibility with MacOS 10.14 (Mojave).

  • SoundSource now requires MacOS 10.11 (El Capitan) or higher. If you're still on 10.10, be sure to see our Legacy page.

SoundSource 3.1.0

Released on April 17th, 2018

  • SoundSource's Play-Thru window now has full channel support for multi-channel devices.

  • The main menu now includes a System sub-menu, providing fast access to both the Sound system preference and MacOS's bundled Audio MIDI Setup application.

  • SoundSource now works around device visibility issues caused by incorrect behavior seen in apps such Boom.

  • CPU usage has been improved when the SoundSource Play-Thru window is closed.

  • The “Track” options for Input and Output devices in the Play-Thru window have been made more robust, to better handle instances where MacOS does not report a default device.

  • The License window has been updated and improved.

SoundSource 3.0.3

Released on January 16th, 2018

  • SoundSource now has full compatibility with MacOS 10.13 (High Sierra).

  • An issue where playing back audio from a device could accumulate additional latency over time has been fixed.

  • Audio playback with single-channel devices has been corrected to properly provide both channels.

SoundSource 3.0.2

Released on March 3rd, 2017

  • We've corrected an issue where the global menu could draw incorrectly on machines with no input devices.

  • The latency of audio coming in via Play-Thru has been greatly reduced.

  • The layout of the Preferences window has been adjusted, to fix display issues, particularly on older OSes.

SoundSource 3.0.1

Released on February 17th, 2017

  • The global menu's volume level slider for the specified input device will no longer jump erratically.

  • The Play-Thru window's input device volume now correctly reflects the current device value at all times.

  • The “Start SoundSource at login” checkbox now correctly allows itself to be turned off.

SoundSource 3.0.0

Released on February 14th, 2017

  • SoundSource is back (read about SoundSource's history ) and better than ever! SoundSource 3 now includes all the audio device switching functionality of the old SoundSource, as well as the audio play-thru functionality from our previous LineIn application.

  • SoundSource will run in the Dock and the menu bar by default. Switch to menu bar only mode right from the Preferences window.

  • Make sure SoundSource is always available with the “Start SoundSource at login ” preference.

  • SoundSource now requires Mac OS X 10.10 (Yosemite)

SoundSource 2.3.0

Released on September 3rd, 2014

  • Latency build-ups be gone! We've made improvements to avoid latency build-ups during long audio device capture sessions, and also to prevent static and skips.

  • You can now toggle play-thru via the menu bar. Just look for the "Enable/Disable Play-thru" menu item.

  • Some small UI changes and improvements have been made.

  • An emergency update, necessitated by immediate changes Apple has made to their Gatekeeper system, restores compatibility on Mac OS X 10.9.5 and higher.

SoundSource 2.2.0

Released on June 25th, 2014

  • The LineIn window can now be closed, with a menu item to re-open it.

  • LineIn now requires Mac OS X 10.7 (Lion)

SoundSource 2.5.1

Released on July 4th, 2012

  • SoundSource is now fully compatible with Mac OS X 10.7 (Lion).

  • SoundSource now requires Mac OS X 10.6 (Snow Leopard)

  • Several bug fixes and improvements have been made.

SoundSource 2.1.1

Released on April 23rd, 2012

  • LineIn's has a new icon.

  • Several bug fixes and improvements have been made.

SoundSource 2.1.0

Released on September 22nd, 2011

  • LineIn now displays spectrum meters as well as level meters.

  • Several bug fixes for Mac OS X 10.7 (Lion) have been made.

  • LineIn now requires Mac OS X 10.6 (Snow Leopard)

SoundSource 2.5.0

Released on August 27th, 2009

  • Now runs as a standalone application, not a MenuExtra

  • Compatible with Mac OS X 10.6 (Snow Leopard)

  • Now requires Mac OS X 10.5 (Leopard) or higher

SoundSource 2.0.0

Released on March 3rd, 2008

  • Added volume sliders for each audio device

  • Hides devices which can't be selected

SoundSource 1.4.0

Released on September 5th, 2007

  • Full Mac OS X 10.5 (Leopard) support

SoundSource 2.0.3

Released on October 19th, 2007

  • LineIn now supports Mac OS X 10.5 (Leopard)

SoundSource 1.3.0

Released on September 5th, 2007

  • Added "Auto-Switch to Headphones" option for Mac Pro machines

  • Sleek new Menu Bar icon

SoundSource 1.2.0

Released on February 21st, 2007

  • Added "Open Audio MIDI Setup" menu item

  • Various minor bug fixes

SoundSource 1.1.0

Released on March 23rd, 2006

  • Official Intel Chip-Based Mac (ICBM) support

  • SoundSource now requires Mac OS X 10.3.9

SoundSource 2.0.2

Released on January 20th, 2006

  • LineIn is now a Universal Binary

SoundSource 2.0.1

Released on October 25th, 2005

  • Added Silence Input and Silence Output

  • Auverse/auline: fixed silence gen channels

  • Auverse/rbuffer: finally fixed the oldest crashing bug ever

SoundSource 2.0.0

Released on January 18th, 2005

  • LineIn has been completely revamped with a new interface and many new options.

SoundSource 1.0.5

Released on January 2nd, 2005

  • Minor updates for improved Mac OS X 10.4 (Tiger) compatibility

SoundSource 1.0.4

Released on October 12th, 2004

  • SoundSource now properly finds all available sources

SoundSource 1.0.3

Released on January 2nd, 2004

  • Full 10.3 support, with new MenuExtraEnabler 1.0.1

  • Fixed a namespace collision between AirPort menu and SoundSource

  • Turned off all debugging code

SoundSource 1.2.0

Released on October 20th, 2003

  • Full OS X 10.3 (Panther) support

SoundSource 1.0.2

Released on October 16th, 2003

  • SoundSource updated for initial Mac OS X 10.3 (Panther) support

SoundSource 1.0.1

Released on July 9th, 2003

  • Respects devices that announce themselves as not being capable of being the default system device, such as Apple's iSight

SoundSource 1.0.0

Released on April 3rd, 2003

  • First release - it's all new