# LRAC 2025 - Blind Test Set Preview - Example Files

This folder contains audio data representative for some of the test cases in the Blind Test Set. 
Specifically, the purpose is to:

1. provide examples of clean speech (including male, female, and children's speech) illustrating the clean speech test set section of the Blind Test Set used in both tracks. 
2. provide examples of real-world reverberant speech specific to Tracks 1 and 2, approximating the variety of acoustic conditions encountered in the Blind Test Set. 
3. provide examples of real-world speech in noise specific to Tracks 1 and 2, providing examples (though not full coverage) of some of the noise types, SNR levels, naturally occurring reverberation, and the overall audio quality of the noisy files encountered in the Blind Test Set. 

Note that the files are **not** taken from the test set itself but are of a similar nature as the files in the Blind Test Set. The example files provided here have been carefully selected but no responsibility or liability is assumed by the organizers to fully reflect the Blind Test Set in all aspects. 

The majority of the example files is original data that we release under a [CC BY-SA-4.0 license](https://creativecommons.org/licenses/by-sa/4.0/deed.en). A copy of the license text is provided along with the audio files. Other audio files are sourced from the Mozilla Common Voice Project ([CC0 license](https://creativecommons.org/public-domain/cc0/)). Source details on a per-file basis are provided in the meta.csv file provided. 