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Piezo Release Notes

Piezo 1.9.5

Released on December 17, 2024

  • Missing applications are now removed from the “Recent Applications” list in Piezo’s “Source” menu.

  • Piezo now better handles long filenames, preventing file names from being longer than 230 characters.

  • Interface updates have been made, to better respect MacOS’s optional “Reduce Motion” setting.

  • An alignment correction has been made in the “Settings” window.

  • Piezo 1.9.5 Is for MacOS 14.4 and Higher
    This variant of Piezo supports MacOS 14.4 and higher. On MacOS 11 through 14.3.1, a different variant is automatically used, with no action required on your part.

Piezo 1.9.4Full MacOS 15 Support

Released on September 10, 2024

  • Full Support for MacOS 15 (Sequoia)
    Piezo now offers full support for MacOS 15 (Sequoia), with no known incompatibilities.

  • The license unlock sound now plays via the “systemsoundserverd” process, which correctly respects the system’s alert volume and device preference.

  • A rare crash when using devices with mismatched sample rates has been fixed.

  • Audio will now mute as expected when running the latest versions of SoundSource alongside Piezo.

  • Piezo 1.9.4 Is for MacOS 14.4 and Higher
    This variant of Piezo supports MacOS 14.4 and higher. On MacOS 11 through 14.3.1, a different variant is automatically used, with no action required on your part.

Piezo 1.9.3Preliminary MacOS 15 Support

Released on September 10, 2024

  • Preliminary Support for MacOS 15 (Sequoia) Betas
    Piezo will no longer warn every launch when run on MacOS 15 (Sequoia). There are no known issues on Sequoia at present, but do note that these betas remain in flux. To avoid problems, we always encourage users to stick with Apple’s official (non-beta) OS releases.

  • The “What’s New” notes will once again properly display on the first launch of a new version. This fixes a regression introduced in version 1.9.2.

  • Piezo 1.9.3 Is for MacOS 14.4 and Higher
    This variant of Piezo supports MacOS 14.4 and higher. On MacOS 11 through 14.3.1, a different variant is automatically used, with no action required on your part.

Piezo 1.9.2

Released on May 16, 2024

  • Capture of audio played to secondary devices by VoIP applications has been improved.

  • If you’re running the latest version of Piezo when you check for an update, the resulting information screen now provides a helpful “View Release Notes” button.

  • Waking after sleep no longer incorrectly stops audio capture, fixing a recent regression.

  • Volume levels have been improved when performing stereo to mono downmixing.

  • Accessibility improvements have been made for the “Permissions” window.

  • Piezo 1.9.2 Is for MacOS 14.4 and Higher
    This variant of Piezo supports MacOS 14.4 and higher. On MacOS 11 through 14.3.1, a different variant is automatically used, with no action required on your part.

Piezo 1.9.1

Released on March 27, 2024

  • Piezo’s audio capture has been updated to correctly capture audio from Xcode Playgrounds.

  • Piezo will no longer unexpectedly activate unused input devices (such as Continuity microphones like iPhones) when a VoIP app is targeted.

  • The “Check for Updates” button in the “Settings” window now works correctly.

  • Re-selecting the current application in the “Source” menu while recording no longer incorrectly stops recording.

  • The “Show/Hide Settings” option previously found in the “Record” menu has been renamed “Show/Hide Recording Options”, to avoid confusion with the app’s “Settings” window (formerly “Preferences”).

  • Artwork tweaks have been made to provide the most realistic needle drawing possible.

  • Piezo 1.9.1 Is for MacOS 14.4 and Higher
    This variant of Piezo supports MacOS 14.4 and higher. On MacOS 11 through 14.3.1, a different variant is automatically used, with no action required on your part.

Piezo 1.9.0Requires MacOS 14.4 or Higher

Released on March 11, 2024

  • A Powerful New Audio Capture Backend
    Piezo now uses a new audio capture backend called Audio Routing Kit, or “ARK” for short. Thanks to ARK, Piezo can be set up on a new Mac in seconds, with no restarts or passwords required.

  • New “System Audio Access” Permission
    The “Permissions” window has been updated, with a new “System Audio Access” permission. This permission enables you to use Piezo to record audio from applications you specify.

  • Standard User Accounts Welcome
    Standard MacOS user accounts can now record audio with Piezo, without needing any help from an Administrator account.

  • Erroneous Microphone-In-Use Indicators, Begone!
    Previously, when Piezo was playing audio to a device that also has input channels, or capturing from any application on MacOS 14.2 and higher, MacOS would erroneously display its orange microphone-in-use indicator. With changes in Piezo’s audio capture backend, that is no longer the case, and we’re very glad about it.

  • Corrections have been made to the default applications listed under “Recent Applications” on first launch.

  • On launch, Piezo will now always interact as expected with previously selected sources.

  • The “Recent Applications” section of the “Sources” has been improved to include apps dragged and dropped into Piezo, and to ignore apps that have been rejected.

  • The “Sources” menu has been updated to alphabetize using the on-disk name, which ensures apps like “Ableton Live” appear where you’d expect.

  • Assorted drawing bugs associated with updates to MacOS 14 have been corrected.

  • The “Quick Tour” will no longer unexpectedly display scroll bars.

  • The main window’s default location on first launch has been improved.

  • Using the “Factory Reset” option in the “Debugging” window now correctly visually updates the “Hidden Settings” section.

  • The “Uninstall ACE…” button in the “Debugging” window will now only appear if ACE is currently installed.

  • Piezo now provides a new “Limit audio capture to default output” hidden preference, for use with apps that play audio to multiple audio devices.

  • Piezo now includes an automated re-downloader, to ensure you have the proper variant for your MacOS version.

  • Piezo’s “About” box now shows the details about the audio engine it’s using.

  • Piezo 1.9.0 Is for MacOS 14.4 and Higher
    This variant of Piezo supports MacOS 14.4 and higher. On MacOS 11 through 14.3.1, a different variant is automatically used, with no action required on your part.

Piezo 1.8.2For MacOS 11 through MacOS 14.3.1

Released on March 11, 2024

  • Corrections have been made to the default applications listed under “Recent Applications” on first launch.

  • On launch, Piezo will now always interact as expected with previously selected sources.

  • The “Recent Applications” section of the “Sources” has been improved to include apps dragged and dropped into Piezo, and to ignore apps that have been rejected.

  • The “Sources” menu has been updated to alphabetize using the on-disk name, which ensures apps like “Ableton Live” appear where you’d expect.

  • Assorted drawing bugs associated with updates to MacOS 14 have been corrected.

  • The “Quick Tour” will no longer unexpectedly display scroll bars.

  • The main window’s default location on first launch has been improved.

  • Piezo now includes an automated re-downloader, to ensure you have the proper variant for your MacOS version.

  • Piezo’s “About” box now shows the details about the audio engine it’s using.

  • Piezo 1.8.2 Is for MacOS 11 through MacOS 14.3.1
    This variant of Piezo supports MacOS 11 through MacOS 14.3.1. On MacOS 14.4 and higher, a different variant is automatically used, with no action required on your part.

Piezo 1.8.1Full Support for MacOS 14

Released on October 17, 2023

  • Full Support for MacOS 14 (Sonoma)
    Piezo now has full compatibility with MacOS 14 (Sonoma), with no known issues.

  • Improvements in ACE 11.9.6
    The Audio Capture Engine (ACE) has been updated to 11.9.6, with improvements to provide even more reliable audio capture.

  • The look of the default “Select a source” view has been improved.

  • Piezo will now launch and run as expected on MacOS 14.1.

  • The celebratory sound effect heard when unlocking Piezo will now correctly play through the Mac’s configured “Sound Effects” device. After all, sound effects play through a separately configured output in MacOS.

  • It’s now possible to control-click in the “Name” and “Code” fields of the “License” window, making it possible to copy and paste in data.

Piezo 1.8.0Initial Support for MacOS 14

Released on September 12, 2023

  • Initial Support for MacOS 14 (Sonoma)
    Piezo now has initial compatibility with the forthcoming MacOS 14 (Sonoma), with no known issues.

  • Improvements in ACE 11.9.4
    The Audio Capture Engine (ACE) has been updated to 11.9.4, with compatibility for MacOS 14 (Sonoma), correct capture of audio from Xcode Playgrounds, and many smaller improvements for even more reliable audio capture.

  • New “Permissions” Window
    The “Piezo” menu now includes a new “Permissions” window, to easily enable the “Microphone Access” permissions. These permissions are required for Piezo to record audio from microphones and other input devices you specify.

  • Nextiva VoIP Capture Support
    The Nextiva desktop app is now supported as a VoIP audio source, making it easy to record both halves of a conversation.

  • Piezo’s “About” box now shows the version of MacOS upon which it is currently running.

  • Piezo now requires MacOS 11 (Big Sur) or higher. If you're still on 10.15 (or lower), be sure to see our Legacy Software page.

Piezo 1.7.13

Released on April 24, 2023

  • Updates to VoIP Capture Support for Cisco Webex
    Changes have been made to ensure Piezo can capture from Webex.

  • Improvements in ACE 11.9.3
    The ACE audio capture engine has been updated with minor changes.

  • Piezo’s “Source” menu once again uses a single down arrow, the correct look for a pull-down button.

  • Work has been done to avoid an issue where new ACE installations could incorrectly show an “Almost Ready” screen after restarting.

  • A new “Uninstall ACE” option has been added to the “Debugging” window, accessible (by holding Option) before the app has fully launched.

Piezo 1.7.12

Released on December 19, 2022

  • Full MacOS 13.1 Compatibility
    Piezo now provides full audio capture on MacOS 13.1, with no known issues.

  • Improvements in ACE 11.9.2
    The ACE audio capture engine has been updated to provide full audio capture on MacOS 13.1.

Piezo 1.7.11Full Support for MacOS 13

Released on November 17, 2022

  • Full MacOS 13 (Ventura) Compatibility
    Piezo now has full compatibility with MacOS 13 (Ventura), with no known issues.

  • Improvements in ACE 11.9.1
    The ACE audio capture engine has been updated with several small bug fixes for improved performance.

  • On MacOS 13 (Ventura) and up, Piezo’s “Preferences” window is now called “Settings”, to match the new MacOS convention.

  • If the “Check for Test Releases” hidden preference is enabled, checks will now run regardless of the status of the “Software Update” preference/setting.

Piezo 1.7.10Initial Support for MacOS 13

Released on October 17, 2022

  • Initial MacOS 13 (Ventura) Compatibility
    Piezo now has initial compatibility with MacOS 13 (Ventura), with no known issues.

  • Improvements in ACE 11.9
    The Audio Capture Engine (ACE) has been updated to 11.9, with compatibility for MacOS 13 (Ventura) and many improvements for even more reliable audio capture.

  • TeamTalk and Gather VoIP Capture Support
    The TeamTalk and Gather Mac apps are now supported as a VoIP audio sources, making it easy to record both halves of a conversation.

  • A channel mapping issue which could affect devices containing both inputs and outputs when capturing from VoIP apps has been corrected.

  • Piezo now requires MacOS 10.15 (Catalina) or higher. If you're still on 10.14 (or lower), be sure to see our Legacy Software page.

Piezo 1.7.9

Released on June 29, 2022

  • Improvements in ACE 11.8.2
    The Audio Capture Engine (ACE) has been updated to 11.8.2, with many improvements for even more reliable audio capture. This includes a workaround for issues with FaceTime volume when using the built-in microphone, as well as an improvement in dealing with poorly implemented Audio Units. Tracking of audio device sample clocks also now works better when the device is providing erroneous information. CPU usage has been reduced in many common audio flows, clock synchronization across devices has been improved, and persistent device tracking has been improved.

  • StarLeaf VoIP Capture Support
    The StarLeaf Mac app is now supported as a VoIP audio source, making it easy to record both halves of a conversation.

  • An issue where upsampling of certain low sample rates could sometimes produce audio artifacts has been resolved.

  • When the full version of Piezo has been unlocked, the “License” window now subtly shows the application's version number.

  • Fussy typography improvements have been made to the mailing list sign-up window shown at the fifth launch for new users, as well as the “Release Notes” window shown at the first launch of a new version, which you might be looking at right now!

  • Software Update checks now occur only after the Welcome Window has been closed.

Piezo 1.7.8

Released on February 25, 2022

  • Updates to ACE 11.7.8
    The Audio Capture Engine (ACE) has been updated to 11.7.8, with several small improvements for even more reliable audio capture.

  • As a result of changes to MacOS, the Shortcuts app erroneously showed non-functional Shortcuts for Piezo. This has been corrected, and those invalid Shortcuts will no longer appear.

Piezo 1.7.7Full Support for MacOS 12

Released on December 8, 2021

  • Full MacOS 12 (Monterey) Compatibility
    Piezo now has full compatibility with MacOS 12 (Monterey), with no known issues.

  • Updates to ACE 11.7.7
    The Audio Capture Engine (ACE) has been updated to 11.7.7, with several small improvements for even more reliable audio capture.

Piezo 1.7.6

Released on October 15, 2021

  • MacOS 12 (Monterey) Improvements
    Several small improvements have been made for Piezo's support for MacOS 12 (Monterey).

  • Updates to ACE 11.7.6
    The Audio Capture Engine (ACE) has been updated to 11.7.6, with small improvements for MacOS 12 (Monterey), as well as a fix for capture issue with Catalyst-based (and AVFoundation-based) apps.

  • Signal VoIP Capture Support
    The Signal Mac app is now supported as a VoIP audio source, making it easy to record both halves of a conversation.

Piezo 1.7.5Initial Support for MacOS 12

Released on September 16, 2021

  • Initial MacOS 12 (Monterey) Compatibility
    Piezo now has initial compatibility with MacOS 12 (Monterey), with no known issues.

  • Fixes and Improvements in ACE 11.7.2
    The Audio Capture Engine (ACE) has been updated to 11.7.2, with fixes for several rare issues.

  • Sample rate matching (clock synchronization) for audio devices has been improved.

  • Piezo now requires MacOS 10.14 (Mojave) or higher. If you're still on 10.13 (or lower), be sure to see our Legacy Software page.

Piezo 1.7.4

Released on June 24, 2021

  • Fixes and Improvements in ACE 11.7.1
    The Audio Capture Engine (ACE) has been updated to 11.7.1, with fixes for several rare issues.

  • Enhancements to Piezo's Built-In Updating
    Piezo's updating code has been overhauled and improved. It is now based on Sparkle 1.26.0, with several customizations.

        • To avoid possible issues, Piezo will no longer offer to “Install on Quit”. Automatic background updating has been removed as well, placing the user in charge of all updates.

        • The update interface has been improved, with several design and text enhancements.

        • Finally, the new “Skip for Now” button allows you to delay updating if desired.

    As always, we strongly recommend leaving the “Automatically check for updates” option enabled.

  • Piezo's manual is now provided online, rather than being built in to the application. The application's “Help” menu has also been modified and streamlined, to get you assistance as quickly as possible.

  • Piezo has been updated to prevent rare issues with its main window failing to appear on screen.

  • Many debugging improvements have been made:

        • Available logs have been cleaned up.

        • Active logs are now listed in the logging files.

        • Machine details are no longer needlessly included in copied errors.

        • Logs are now activated with simple checkboxes.

        • When a log is activated, it will also collect recent crash logs, to better understand any issues.

        • A “Quit and Relaunch for Debugging” option has been added, accessed by pressing option in the Help menu.

        • Command-line debugging options have been added.

  • It's now possible to access several relevant menu items while the initial Quick Tour is open.

  • The “Purchase” button in the License window now uses a better link to get to the Buy page.

  • The Update window's width has been tweaked, to handle longer titles.

  • Get Access to Test Builds
    Piezo now features a new “Check for test releases” hidden preference. When active, you may receive notice of pre-release versions of the software, ahead of its wide release. If you're interested to test updates, you can turn this option on in the Debugging window (accessible by holding option while viewing the “Help” menu, then selecting “Quit and Relaunch for Debugging”).

Piezo 1.7.3

Released on February 26, 2021

  • Major Updates in ACE 11.7
    The Audio Capture Engine (ACE) has been updated to 11.7. Its sample rate converter has been upgraded, drift correction has been improved, and several rare issues have been resolved.

  • Support for Xcode's Simulator
    It's now possible to record audio from Xcode's Simulator with Piezo.

  • The Quick Tour now properly supports the new “Speak items under the pointer” setting in MacOS 11 (Big Sur).

  • Improvements have been made for the Installer and Quick Tour, to present better on small resolutions, using scrollbars to make all content accessible.

  • When Piezo is unlocked by entering a valid license key, in addition to displaying an animation, it will now play a brief celebratory sound for visually impaired users.

Piezo 1.7.2

Released on January 26, 2021

  • ACE Updated to 11.6.3
    The Audio Capture Engine (ACE) has been updated to 11.6.3. This update has several fixes, and provides further handling for future MacOS updates running on Apple Silicon. As before, M1 Mac users should update immediately.

Piezo 1.7.1

Released on January 8, 2021

  • Fixes and Improvements in ACE 11.6.1
    The Audio Capture Engine (ACE) has been updated to 11.6.1, with several fixes, as well as a workaround for an incompatibility with future MacOS updates running on Apple Silicon. M1 Mac users should update immediately.

  • Full Compatibility with M Chip-Based Macs
    Piezo now has full compatibility with new Macs powered by Apple Silicon.

  • An issue where freshly-downloaded apps could cause an error on capture has been fixed.

Piezo 1.7.0Full Support for MacOS 11

Released on December 9, 2020

  • Initial Support for M Chip-Based Macs
    Piezo is now a Universal app, offering initial support for the new M1 chip-based Macs. Though there are no known issues, we do not yet recommend its use in critical productions. Further testing is ongoing, with more updates to follow.

  • Full MacOS 11 (Big Sur) Compatibility
    Piezo now has full compatibility with MacOS 11 (Big Sur), with no known issues.

  • ACE 11.6 Brings Audio Capture to Apple Silicon Macs
    The Audio Capture Engine (ACE) has been updated to 11.6, offering compatibility with Apple Silicon Macs.

  • Piezo now respects the user-specified system-wide “Accent” color on MacOS 10.14 (Mojave) and up. It also supports Big Sur's new “Multicolor” option, with an appropriate, app-specific brown.

  • Piezo will now capture both halves of conversations for users beta testing voice and video calls in the Whatsapp Desktop app.

Piezo 1.6.10

Released on November 12, 2020

  • Backend updates have been made for better future compatibility with the new M1 chip-based Macs. Additional updates with support for these machines will be forthcoming.

Piezo 1.6.9Initial Support for MacOS 11

Released on November 9, 2020

  • Initial MacOS 11 (Big Sur) Compatibility
    Piezo now has initial compatibility with MacOS 11 (Big Sur).

  • ACE 11.5 Brings Audio Capture to MacOS 11 (Big Sur)
    The Audio Capture Engine (ACE) has been updated to 11.5, offering initial compatibility with MacOS 11 (Big Sur).

  • Updates to the names of Loopback virtual audio devices are now immediately reflected.

Piezo 1.6.8

Released on October 28, 2020

  • Additional Audio Fixes in ACE 11.2.2
    The Audio Capture Engine (ACE) has been updated to 11.2.2, fixing several issues. Playback to Bluetooth devices has been improved, non-standard audio formats will again play as expected, and several regressions have been fixed.

  • Piezo's play-thru setting has been adjusted for clarity. Now entitled “Enable Play-Thru While Recording”, it applies solely when Piezo is actively recording from a source.

  • When Piezo re-names a file due to a leading dot, the magnifying glass will now properly reveal the recording, as expected.

Piezo 1.6.7

Released on October 24, 2020

  • Critical Fixes in ACE 11.2.1
    The Audio Capture Engine (ACE) has been updated to 11.2.1, fixing a regression which would cause captured input audio to be improperly muted, as well as a crash which could occur with multi-output devices.

Piezo 1.6.6

Released on October 20, 2020

  • Audio Capture Improvements With ACE 11.2, Including Full Support for Catalyst Apps
    The Audio Capture Engine (ACE) has been updated to 11.2, with many backend enhancements. Catalyst apps like “Voice Memos” are now fully supported, aggregate devices now work better, and many other small improvements have been made.

  • VoIP Capture Support for Several Additional Apps
    Jamulus and Jami are now supported as a VoIP audio source, making it easy to record both halves of a conversation. Support for Cisco's various chat applications has also been improved.

  • Support for Chrome's “Progressive Web Apps”
    Audio will now be captured from Chrome web apps, also known as progressive web apps.

  • Leading periods in filenames are now replaced with dashes, to prevent recordings from being hidden.

  • Piezo is not yet compatible with MacOS 11 (Big Sur), but we expect to have an additional release with support in the very near future. Stay tuned!

  • Piezo now requires MacOS 10.13 (High Sierra) or higher. If you're still on 10.12 (or lower), be sure to see our Legacy Software page.

Piezo 1.6.5

Released on May 6, 2020

  • Improvements and Fixes With ACE 11.1.4
    The Audio Capture Engine (ACE) has been updated to 11.1.4, with many backend enhancements including additional fixes for device tracking, and work arounds for issues with Bluetooth.

  • Facebook Messenger VoIP Capture Support
    Facebook's Messenger app is now supported as a VoIP audio source, making it easy to record both halves of a conversation.

  • Webex VoIP Capture Support
    Cisco's Webex and Webex Teams apps are now supported as VoIP audio sources, making it easy to record both halves of a conversation.

  • Several other small changes have been made. Piezo's preferences window has been widened and the explanatory text for version checking has been indented. Several manual images were updated, and the License window has been modified slightly for better performance with VoiceOver.

Piezo 1.6.4

Released on February 21, 2020

  • ACE Update
    The Audio Capture Engine (ACE) has been updated to 11.1.2, with many backend enhancements, and bug fixes when dealing with aggregate devices.

  • A slight correction has been made to Piezo's welcome window, so it only states an ACE update is required when one actually is.

  • Small changes have been made to Piezo's preferences window, updating the explanatory text for version checking.

Piezo 1.6.3

Released on December 6, 2019

  • Full MacOS 10.15 (Catalina) Support
    At this time, Piezo now has full compatibility with MacOS 10.15 (Catalina).

  • Enhanced Audio Capture with ACE 11.1
    The Audio Capture Engine (ACE) has been updated to 11.1, with many backend enhancements.

  • Further improvements have been made to the tracking of USB audio devices.

  • A small change has been made to the Preferences window, to provide details on automatic checking and anonymous usage data.

  • A useful “Reinstall ACE” debugging option is now available by option-clicking the Piezo menu. This will uninstall and then immediately reinstall ACE.

Piezo 1.6.2

Released on October 10, 2019

  • Improvements for Recording From Input Devices
    Piezo's tracking of physical input devices has been overhauled and dramatically improved. It will now better handle issues caused by many USB audio devices, automatically tracking devices across restarts and between ports on your computer, so fewer adjustments are necessary.

  • ACE 11.0.1 Update
    The backend Audio Capture Engine (ACE) has been updated to 11.0.1. As part of this update, audio capture from Skype will again occur at the expected volume.

  • AAC Recording Fix
    An issue where AAC recording did not work correctly on MacOS 10.15 (Catalina) has been corrected.

  • Piezo's “wizard” window has received many backend updates and improvements.

Piezo 1.6.1Adds Support for MacOS 10.15

Released on August 27, 2019

  • Piezo now has preliminary compatibility with MacOS 10.15 (Catalina).

  • 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. ACE is now required to use Piezo. If it is not currently installed, you'll be prompted to install it at launch.

  • On MacOS 10.14 (Mojave) and higher, Piezo now offers general Dark Mode support on windows throughout the app.

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

  • Piezo's Help menu now includes a useful new Release Notes window, so you can see changes across all versions from right inside the app.

  • Small interface changes have been made, including changes to the Message windows used to convey certain information to the user.

  • The About box has been updated to provide additional version information in an easy-to-read fashion.

  • A new wizard has been added to Piezo for installing, updating, and removing ACE (among other things). It includes a new “Quick Tour” to provide a helpful overview of the application. It will also present update notes on the first launch of a new version, and intelligently warn if uninstalling ACE will impact other applications.

  • The “old-style hijacker” option has been removed from Piezo's Hidden Preferences.

Piezo 1.6.0

Released on May 7, 2019

  • The reliability of audio recording under heavy loads has been increased.

  • Improvements and interface modifications have been made to Piezo's Source selector, as well as the audio device icon.

  • The Audio Capture Engine (ACE) backend has been updated to 10.0.1, for the most robust and reliable audio capture.

  • An issue where Piezo's popover could incorrectly display multiple connectors on MacOS 10.14 (Mojave) has been corrected.

  • A ridiculously rare bug (known internally as the “wiggle freeze”), where jiggling windows with skillful timing could cause the Settings popover to get stuck out of position, has been fixed.

Piezo 1.5.12

Released on March 28, 2019

  • Audio Capture Engine (ACE) has been updated to 10.0, for the most robust and reliable audio capture.

  • Some small improvements have been made for those using VoiceOver. The Source popup menu now reads out the currently selected Source, and a readout of the current recording filename is also now available to VO users.

  • The support form in Piezo's Help menu has been updated.

Piezo 1.5.11Full Support for MacOS 10.14

Released on October 18, 2018

  • Audio Capture Engine (ACE) has been updated to 9.1.2, with full MacOS 10.14 (Mojave) compatibility and a fix for capturing audio from Voice Memos and other ports from iOS to Mac (“Marzipan” apps).

  • Piezo now better handles error reporting when attempting to capture from apps which require the ACE extra.

  • Piezo's source selector now behaves better with sources requiring ACE.

  • VoiceOver has been updated to work around a change Apple made on MacOS 10.14. Menu items will again properly reflect the most recent action taken.

Piezo 1.5.10

Released on September 10, 2018

  • Audio Capture Engine (ACE) has been updated to 9.1.0, with initial MacOS 10.14 (Mojave) compatibility.

  • Piezo now has full VoIP capture support for “Linphone”, “Telegram”, and “Zoiper 5”.

  • Changes made by Spotify have led to ACE being required to capture audio from the Spotify app. Piezo now alerts the user to this requirement when necessary.

  • The VU meter needles have been updated to appear better on Retina displays.

  • Another update to License window has been made.

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

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

Piezo 1.5.9

Released on April 17, 2018

  • Audio Capture Engine (ACE) has been updated to 9.0.2, to fix several small issues related to installation.

  • Piezo's MP3 encoder (LAME) has been updated to version 3.100.

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

Piezo 1.5.8

Released on March 23, 2018

  • An issue which prevented Piezo 1.5.7 from installing ACE has been corrected in Piezo 1.5.8.

  • Small License window tweaks have been made.

Piezo 1.5.7

Released on March 22, 2018

  • Audio Capture Engine (ACE) is the new name for Rogue Amoeba's audio capture backend (formerly called “Instant On”). ACE has been updated to version 9.0, with several small fixes and improvements.

  • Piezo now has full VoIP capture support for “LINE.app”.

  • VoIP support for GoToMeeting has been updated to support all versions, including new versions from LogMeIn.

  • The License window has been updated and improved.

Piezo 1.5.6

Released on January 16, 2018

  • Instant On has been updated to version 8.4.5, with important compatibility fixes for Skype 8, along with other small fixes.

  • Piezo now has full VoIP capture support for “Scopia Desktop”.

  • Audio capture now works as expected when a device with very high sample rates (above 192 kHz) is in use.

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

  • Piezo's popover now behaves as expected on MacOS 10.13 (High Sierra).

Piezo 1.5.5Full Support for MacOS 10.13

Released on September 28, 2017

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

  • Piezo's popover now behaves as expected on High Sierra.

  • Piezo's updated audio capture engine now works as expected with single-site browser (SSB) apps such as those made by Epichrome.

Piezo 1.5.4

Released on July 24, 2017

  • Instant On has been updated to version 8.4.4, with important crash fixes for MacOS 10.13, as well as improved logging.

  • We've fixed an issue where play-thru of application sources did not function correctly if Instant On was not installed.

  • Enhancements: Several important improvements have been made to improve the way Piezo behaves for VoiceOver users.

  • Piezo's preliminary compatibility with MacOS 10.13 (High Sierra) has been improved. We still strongly recommend users stick with a fully supported version of MacOS for now, but if you're on High Sierra, make sure you update to the latest Piezo (and the latest Instant On).

  • Visual and reliability improvements have been made to our Extras installer window.

Piezo 1.5.3

Released on July 7, 2017

  • Piezo now has full VoIP capture support for Amazon Chime, Jabber, Microsoft Teams, QQ, and WeChat.

  • Instant On has been updated to version 8.4.3, with improvements to audio capture from VMWare Fusion, FaceTime, and Flash running in Safari.

  • Play-thru of audio from app sources has been modified to reduce latency. The Play-Thru menu item has also been improved for better clarity.

  • The audio capture backend has been updated to be more robust, and this new style capture is now used by default when Instant On is installed. Users shouldn't notice any changes.

  • Piezo now has (extremely) preliminary compatibility with MacOS 10.13 (High Sierra). We still strongly recommend users stick with a fully supported version of MacOS for now.

  • Many small improvements have been added to make reading the Help manual easier.

  • Piezo now requires MacOS 10.10 (Yosemite) or higher. If you're still on 10.9 (or lower), be sure to see our Legacy Software page.

Piezo 1.5.2

Released on October 4, 2016

  • Adjustments have been made to enable FaceTime to be captured on MacOS 10.12 (Sierra).

  • Several minor corrections have been made for the “Install Extras” window when using Full Keyboard Access.

  • Due to changes made by Apple, capturing audio from iTunes now requires Instant On. Piezo has been updated to handle this as needed.

Piezo 1.5.1Adds Support for MacOS 10.12

Released on August 16, 2016

  • Instant On has been updated to version 8.3, with preliminary support for MacOS 10.12 (Sierra).

  • Piezo now has full VoIP capture support for Slack, Discord, and Avaya Softphone.

  • Minor Enhancement: The “Install Extras” window has been modernized.

  • Additional minor fixes and improvements have been made.

Piezo 1.5.0

Released on February 12, 2016

  • Piezo now uses the Instant On extra to capture audio from already-running apps, as well as difficult to capture apps like Safari, FaceTime, and more.

  • Animation of the VU meters has been improved.

  • The software update mechanism (powered by Sparkle) now runs securely over HTTPS.

  • Other minor fixes and improvements have been made.

  • Piezo is now available exclusively via direct download. We have chosen to cease distribution of Piezo through the Mac App Store at this time. Piezo now includes details for users who purchased via the Mac App Store to migrate to the direct version, free of charge.

Piezo 1.2.9Adds Support for MacOS 10.11

Released on September 11, 2015

  • Some minor interface adjustments were made, to better suit the newest versions of Mac OS X.

  • Other minor fixes and improvements have been made.

  • Piezo now requires Mac OS X 10.9 (Mavericks) or higher. If you're still on 10.8 (or lower), be sure to see our Legacy Software page.

  • This release is only available as a direct download, due to issues with Mac App Store submissions.

Piezo 1.2.8

Released on July 30, 2015

  • A bug in Piezo 1.2.7, caused the Reveal File button not to properly appear after recording. This is fixed in Piezo 1.2.8.

  • A bug in Piezo 1.2.7 also caused the Reveal button in the Preferences window to fail. This too is fixed in Piezo 1.2.8.

  • The default apps list has been modified, to remove applications which are no longer supported due to changes made on Apple's end.

  • This release is only available as a direct download, due to issues with Mac App Store submissions.

Piezo 1.2.7

Released on June 15, 2015

  • An issue where Gatekeeper would incorrectly complain about the app when first launching on 10.10.4 and 10.11 has been resolved.

  • App Nap and Piezo now get along better than ever!

  • A few small bugs have been fixed.

  • This release is only available as a direct download, due to issues with Mac App Store submissions.

Piezo 1.2.6

Released on August 12, 2014

  • 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.

  • A few small bugs have been fixed.

Piezo 1.2.5Adds Support for MacOS 10.10

Released on July 23, 2014

  • Piezo now has initial compatibility with Mac OS X 10.10 (Yosemite).

  • Audio capture from all versions of Firefox has been restored.

  • Piezo now offers better support for Citrix GoToMeeting VoIP.

  • This release was only available as a direct download, due to issues with Mac App Store submissions.

Piezo 1.2.4

Released on December 30, 2013

  • Several small improvements to audio capture have been made, with an overhaul to the underlying audio capture engine.

  • This release was available both Direct and from the Mac App Store.

Piezo 1.2.3Adds Support for MacOS 10.9

Released on November 28, 2013

  • Piezo now has initial compatibility with Mac OS X 10.9 (Mavericks).

  • Piezo now has full VoIP capture support for Microsoft Lync.

  • At this time, capture from Safari on Mavericks is no longer possible. To capture web-based audio, use another browser such as Google Chrome or Firefox as your source in Piezo.

  • Piezo now requires Mac OS X 10.7 (Lion) and up.

  • This update fixes interface glitches on Mac OS X 10.9 (Mavericks) with the counter and file name.

  • The License window has been overhauled, with HTML. Neat!

  • The app now has a hidden "Check for News" option, accessible by pressing option while in the Fission menu.

  • A rare crash, caused by the (very old) SCPlugin has been worked around.

  • Several other small improvements have been made.

  • This release was available solely for Direct purchasers.

Piezo 1.2.2

Released on March 5, 2013

  • Piezo 1.2.2 has been updated with high-resolution artwork, for full, gorgeous display on Retina Macs.

  • Piezo now features an HTML-based About box, for better Retina display.

  • A rare crash which could occur when capturing audio from certain oddly-behaving apps has been corrected.

  • Several other small improvements have been made.

Piezo 1.2.1

Released on August 3, 2012

  • An issue where Piezo could not capture audio from several Apple applications on Mac OS X 10.8 has been fixed. Piezo is now fully Mountain Lion-ready.

  • A bug which could cause Piezo to crash when adjusting the Preferences window has been fixed.

  • Piezo no longer checks if an app is quarantined on Mac OS X 10.8, as the bug this was working around has been fixed in the OS.

  • The Factory Reset debugging function has been fixed on Mac OS X 10.8.

  • Piezo's icon has been updated (and tweaked) for full Retina compatibility, and throughout the site.

Piezo 1.2.0

Released on June 9, 2012

  • Piezo now tracks Skype's input and output devices, for easier VoIP recording.

  • Piezo now features a Play-thru toggle in the Record menu, allowing the user to toggle audio play-thru on or off.

  • Piezo's preferences now feature a Reveal button, to show the Recording destination.

  • Piezo now properly handles periods in file names.

  • Piezo now better handles problems when the recording folder is unavailable, including defaulting back to ~/Music/Piezo.

  • Dashboard and the iPhone Simulator are now automatically excluded, with a suitable warning message for users.

  • Piezo now shows a useful error message when attempting to capture from a quarantined source app.

  • Piezo now has a one-time sign-up for the Rogue Amoeba mailing list.

  • The About box now indicates if a build has come from the App Store.

  • The license window no longer includes the app's price.

  • The direct-download version of Piezo now handles MAS receipts, enabling MAS users to migrate out to the direct build.

Piezo 1.1.5

Released on March 29, 2012

  • A bug where high CPU usage could cause problems with Piezo and Mac OS X has been fixed.

Piezo 1.1.4

Released on March 13, 2012

  • A rare bug where Piezo could incorrectly create hundreds of files has been fixed.

  • An issue with capturing audio from Rosetta apps has been corrected.

  • We've worked around a problem where System Preferences could crash if Skype is being captured by Piezo.

Piezo 1.1.3

Released on February 20, 2012

  • This update fixes several rare issues with recording from Skype. Recording from all versions of Skype (including both Skype 5 and Skype 2.8) is now fully supported.

  • Other minor bugs have also been fixed.

Piezo 1.1.2

Released on February 7, 2012

  • An issue where Piezo was unable to properly record audio from Skype on Mac OS X 10.7.3 has been fixed.

  • Piezo now supports pulling audio from the Toktumi and MagicJack VoIP apps.

  • The UI no longer pauses when a menu is clicked.

  • We've also made several assorted other minor bug fixes and improvements.

Piezo 1.1.1

Released on January 7, 2012

  • Piezo now properly finalizes all AAC recordings, fixing an extremely uncommon bug that could cause long audio recordings made on slower machines to fail in rare circumstances.

  • Piezo now defaults to recording 256 kbps MP3 files, for optimal compatibility.

  • The About box Staff link is now clickable.

  • Several additional popovers were added to improve understanding of AAC finalizations.

  • We've also made many assorted other minor bug fixes and improvements.

Piezo 1.1.0

Released on December 21, 2011

  • Piezo now offers full support for recording from VoIP apps like Skype, iChat, and FaceTime. Local audio is recorded to the left channel, while the remote caller is recorded to the right.

  • The VU meters have been slightly improved to fix minor issues.

  • Several other minor improvements have been made.

Piezo 1.0.2

Released on December 16, 2011

  • Piezo now supports drag & drop of source apps to its window.

  • The Dock icon now illuminates when Piezo is recording.

  • The timer display now changes from H:MM:SS to D:HH:MM after 10 hours. The Day digit wraps after 9 days.

  • Piezo no longer prevents sleep when it's not recording.

  • "Check For Update" is now available in the Piezo menu, for manual version checking.

  • A cosmetic bug where the record button stays on incorrectly has been fixed.

  • Now with one fewer appendix.

  • Rogue Amoeba's first-ever software release from a hospital bed.

Piezo 1.0.1

Released on December 7, 2011

  • Initial public release

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