v0.3

Chirplab v0.3 includes:

Graphical User Interface

• File input and output
• Sound card input and output
• (new) Input calibration dialog for acoustic/electrical measurements
• Create and configure projects
• Create and configure measurements
• (new) Save and load measurement presets
• Export individual measurement graphs and data

Command-Line Interface

• Measure an input file using the settings in a Chirplab project file
• (new) Switches to override input file, input channel, and data output directory
• (new) Generate a chirp stimulus file from project file parameters

Runs on Windows, Linux, and Mac. (new) GitHub actions automatically bundle a Windows executable for every build and release.

Measurements

• Frequency Response
• Phase Response
• (new) Group Delay
• Harmonic Distortion
• (new) Tracking Filter
• (new) Residual Distortion

Examples:

• New project response file allowing immediate configuration and exploration of measurements without first needing to capture a chirp response
• Speaker measurement project with example speaker response recording and measurements that are typical for basic electroacoustic evaluation
• (new) THD+N and High Order Harmonic Distortion measurement presets
• (new) Rub and Buzz measurement presets using different analysis methods

Other updates in v0.3

• Hotkeys for common tasks in GUI, including play/capture
• Graph ticks show 1,2,5 series by default
• Chirp Stimulus/Response tab graph settings configured for much faster plotting
• Other minor bugfixes, mostly GUI corner cases