The 4th CHiME Speech Separation and Recognition Challenge

Following the success of the 1st, 2nd and 3rd CHiME challenges we are pleased to announce the 4th CHiME Speech Separation and Recognition Challenge (CHiME-4). The new challenge revisits the datasets originally recorded for CHiME-3, i.e., Wall Street Journal corpus sentences spoken by talkers situated in challenging noisy environments recorded using a 6-channel tablet based microphone array. CHiME-4 increases the level of difficulty by constraining the number of microphones available for testing.

All approaches are welcome, whether they are emerging or established, and whether they rely on speech processing, signal separation or machine learning.


The results of CHiME-4 will be presented at a dedicated workshop that will take place on September 13th at Google in San Francisco (345 Spear St) following Interspeech 2016.

The workshop venue is conveniently located about half a mile from the Interspeech conference centre.


CHiME-4 features three tracks depending on the number of microphones available for testing:

Participants are encouraged to submit results for all tracks. Submitting results for one or two tracks is also allowed.

On this web site you will find everything you need to get started, including,

The baselines have been further improved and now score among the best techniques in CHiME-3.




If you are interested...

If you are considering participating or just want to learn more then please email with subject 'CHiME4' and you will be added to the email list for receiving further updates.


CHiME is supported by