- This version updates the URL used to retrieve calibration info for the Dayton UMM-6 microphone and improves the sensitivity calculation based on that data. - Other minor cosmetic improvements.

Corrects an issue which prevented miniDSP UMIK-1 sensitivity data from being loaded.

This version fixes a bug in the display of vertical log scale axis values in the Spectrogram.

- This update corrects a bug that could cause a crash when adding input channels to the FFT Analyzer while it was running. - Minor cosmetic improvements and stability enhancements.

- This update improves app behavior when no audio devices are connected to the Mac. - Other minor cosmetic improvements and stability enhancements.

- Dark Mode support on macOS 10.14 (Mojave) and 10.15 (Catalina) - macOS 12 or later is now required. - Minor bug fixes, under-the-hood enhancements, and cosmetic improvements.

This update corrects an issue in which FFT Analyzer overall rms levels were not properly restored from project files.

Added support for automatic unit selection and factory calibration for PCB Model 633A01 digital accelerometer and Model 485B39 USB ICP interface.

- Maintenance update, including minor bug fixes.

- The user preference to automatically start a device, when starting a tool that relies on that device, will now be honored by AppleScript commands. - Capture, export, and grab AppleScript commands have been fixed.

- Support for the Digiducer 333D01 and other products from Digiducer has been improved. - The UMIK-1 from miniDSP and the UMM-6 from Dayton Audio are now properly recognized on Mac OS 10.11. - THD+N is calculated properly as a percentage and properly displayed for either or both data cursors. - Other cosmetic and stability improvements have been made.

- SignalScope directly supports the miniDSP UMIK-1 and Dayton UMM-6 USB measurement microphones. Sensitivity calibration data for these mics can be downloaded automatically, just by entering the mic’s serial number. Making calibrated sound level measurements is as easy as plugging in the UMIK-1 or UMM-6, typing in its serial number, and getting started with the analysis tool of your choice (the serial number only needs to be entered once, after which the app will remember the microphone sensitivity). An internet connection is required to download sensitivity information for the microphone. - SignalScope directly supports the Digiducer 333D01 USB digital accelerometer, and can automatically load serial number and sensitivity calibration information directly from the device. Making calibrated acceleration measurements is as easy as plugging in the 333D01 and getting started with the analysis tool of your choice. - Minor bug fixes and cosmetic improvements.

- SignalScope has been rebuilt for Mac OS 10.10, Yosemite, and is now a 64-bit application. - Additional dB vertical scale factors (3, 6, 9, 12, 15, 18 dB/div) have been added to the FFT Analyzer tool. - Some Quartz plotting issues have been resolved. - Various bugs have been fixed. - Version 3.7 requires Mac OS 10.7 or later.

- The Oscilloscope tool limits drawing frequency with small time scales.

This update corrects an issue which could potentially lead to excessive memory use.

- This update addresses plot freezing issues on Mac OS 10.9 (Mavericks).

- Bug fixes, stability improvements.

- Bug fixes, stability improvements. - Cosmetic improvements.

- FFT calculations are now performed with double precision (64-bit). - Triggering works properly in the FFT Analyzer tool. - Other minor and cosmetic issues have been addressed.

- Help files now open in the default web browser. - Help is now available from within the app as a PDF file. - Spectrogram behavior upon loading from a project file has been improved. - The stability of all FFT-based tools has been improved. - Other minor and cosmetic issues have been addressed.

Version 3.1 - Built for Mountain Lion. - Fixes several bugs.

- An issue has been addressed that sometimes caused SignalScope to save the wrong input device selection in a project file. - Input device selection via AppleScript is also now more reliable. - Output channels no longer appear in input channel selection lists.

Version 3.0.8 is a maintenance release which corrects an issue that could lead to a crash when opening project without that project's audio device connected to the Mac. An issue with saved XY Plotters in the project file has also been addressed.

Version 3.0.6 fixes a crashing bug for Snow Leopard users.

Version 3.0.5 corrects an issue that halted live updates of bar meters and fixes a bug that could potentially cause the app to crash.