FAQ

Sound card is not working

Probably the wrong device was configured.

1. Check the Configuration Id and assignment to the sound card
2. Take advantage of the testing possibilities of the TwinCAT Speech Configurator project
3. If in doubt, check the function of the sound card at the operating system level. The TwinCAT Speech Configurator displays all sound cards that the operating system of the target system has also detected

CX2500-0020 (CX2000 extension module)

1. Enable the BUS used by the BIOS module:
Chipset->PCH I-Configuration->PCH Azalia Configuration->Azalia -> “Enabled”

Too many false recognitions

TwinCAT Speech provides the PLC with all voice commands that have been recognized.

The PLC project must then filter by confidence thresholds.

The sample suggests filtering on two levels:

  1. Main.fConfidenceThreshold:
    • Confidence levels that are too low are directly discarded.
  2. FB_RetrieveUtterance.fRecoThreshold:
    • searches for repetitions.

XAE error message

Error messages are displayed in the TwinCAT XAE Error window.

An additional and detailed view of errors can be found in the log file:

TcSpeechLog_0.txt under C:\TwinCAT\Functions\TF4500-Speech\Boot