Piezo Release Notes

VoIP Capture Support for Phone.app on Tahoe
The new Phone.app on MacOS 26 (Tahoe) is now supported for VoIP capture. This makes it easy to record both halves of a conversation with these apps.

Initial Support for MacOS 26 (Tahoe)
Piezo now has initial support for MacOS 26 (Tahoe), and will no longer warn at launch. However, there are currently two known issues with Tahoe which can result in lost audio.

• Known issue with sample rate mismatches: If an application is playing audio to an external device whose sample rate does not match that of the system’s default output device, attempting to capture it will fail.

• Known issue with lost audio from FaceTime and Phone: Attempting to capture audio from FaceTime or the new Phone app fails in certain setups.

With each of these bugs, silence will be heard, rather than the expected audio. Find more details, including workarounds, in our support article.

These bugs need to be corrected by Apple, in a future MacOS update. As such, you may wish to consider delaying your upgrade to Tahoe until a later date.

VoIP Capture Support for Zoho Meeting and Fongo
The Zoho Meeting desktop app and Fongo Mac app are both now supported as VoIP audio sources. This makes it easy to record both halves of a conversation with these apps.

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

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

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.

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.

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

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.

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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).

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.

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.

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.

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.

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.

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.

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.

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

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).

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.

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.

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.

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”.

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

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

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

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.

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

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.

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.

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.

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.

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.

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 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.

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 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 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.

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 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.

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

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.

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.

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 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 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 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.

Initial public release