VocalTract stops working when changing tenseness from 0 to 1

[maweibezahn]

macOS Version(s) Used to Build

macOS 13 Ventura

Xcode Version(s)

Xcode 14

Description

I am using macOS 15.4.1 and Xcode 16.3

When setting the tenseness parameter of VocalTract from 0 to 1, generation stops. This does not happen with any other value change (e.g. 0.001 to 1, 0 to 0.999 etc.). Other parameters work fine.

Steps to reproduce:

1. Create a simple project with an AudioEngine and a VocalTract as the output
2. Start the VocalTract with tenseness at 0
3. Change the tenseness to 1 (e.g. by the press of a button, or a timer)

Result:

Generation stops working, no sound.

Expected result:

The generation should not stop.

Proposed solution:

Maybe change the range in the parameter definition of tenseness to 0...0.999 (might be ugly but should work).

Crash Logs, Screenshots or Other Attachments (if applicable)

No response