3rd Clarity Enhancement Challenge (CEC3) dataset for hearing aid speech enhancement: Task 1 (Simulated scenes with real impulse responses)

This dataset was created for the third Clarity Enhancement Challenge (CEC3), which asked participants to improve the intelligibility of speech-in-noise for hearing-impaired listeners. CEC3 consisted of three tasks, each extending the simulated data used in the second Clarity Enhancement Challenge (CEC2) in a different way: Task 1: Simulation using real ambisonic impulse respond recordings. Task 2: Recording made over real hearing aid devices worn by a listener and with real head motion Task 3: Simulation with target speech mixed complex dynamic scenes recorded with an ambisonic microphone. This dataset contains the material for Task 1. The data is provided in two parts: clarity_CEC3_data.task1.v1_0.tar.gz — development signals and metadata. clarity_CEC3_data_eval.task1.v1_0.tar.gz — evaluation signals and metadata. For system training, participants were asked to use the CEC2 training dataset (see CEC2 download page). Further details about the challenge—including background, task definitions, and baseline systems—are available in the CEC3 documentation.