HTK/CSLU label file converter

HTK/CSLU label file converter is an easy-to-use program developed in Java, which supplies you with a simple environment for converting speech label files between the HTK (.lab) and CSLU (.phn) filetypes. These are required for research in speech processing.

No setup necessary, besides Java

The entire application's wrapped in one executable .jar file that you can copy to a preferred directory on the HDD or to a removable storage device to run it on any computer effortlessly.
Just remember that Java must be installed, otherwise it won't run. It doesn't update your system registry with new entries or create files on the disk without asking for permission.

Straightforward GUI and settings

The interface is user-friendly. It consists of a small window that reveals the handful of options provided by HTK/CSLU label file converter.
The conversion mode can be selected between .phn to .lab or .lab to .phn, depending on your preferences, after which you can indicate the source and destination directory.
Batch processing is supported, which means that the tool's capable of converting one or more speech label files at the same time to speed up the workload. It automatically processes all supported files from the specified source folders and preserves their names for the new files.

Evaluation and conclusion

It worked smoothly in our testing, since it required a low amount of CPU and RAM to work properly. We haven't experienced any stability issues, since it didn't freeze, crash or prompt error messages.
Although it doesn't have a particularly rich set of options, HTK/CSLU label file converter offers a simple and speedy solution for converting speech label files between the HTK (.lab) and CSLU (.phn) format. It doesn't need previous experience with conversion software and can be used for free.