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ISCApad Archive  »  2015  »  ISCApad #205  »  Events  »  Other Events  »  (2015-12-13) 3rd CHiME Speech Separation and Recognition Challenge at ASRU 2015

ISCApad #205

Wednesday, July 08, 2015 by Chris Wellekens

3-3-11 (2015-12-13) 3rd CHiME Speech Separation and Recognition Challenge at ASRU 2015


3rd CHiME Speech Separation and Recognition Challenge
              Supported by IEEE ASRU 2015
                Launch Date: February  2015
               Results: ASRU, Dec 13-17 2015,


Dear colleague,

Following the success of the 2011 and 2013 CHiME challenges it gives us great pleasure to
pre-announce the 3rd CHiME Speech Separation and Recognition Challenge (CHiME-3)

CHiME-3 will be an official IEEE ASRU 2015 Challenge Task. Participants will be invited
to submit CHiME-3 papers to the ASRU workshop to be held in Scottsdale, Arizona 13-17
December. Papers will be presented at a Special Session.


The CHiME-3 scenario will be ASR for a multi-microphone tablet device in everyday, noisy
environments. It will represent a significant step forward in terms of both realism and
difficulty with respect to the previous CHiME challenges.

The challenge will feature:

- 6-channel microphone array data,
- real acoustic mixing, i.e. talkers speaking in challenging noisy environments,
- varied noise settings including cafe, street junction, public transport.

To maintain compatibility with the 2nd CHiME challenge, the new challenge will re-use the
WSJ evaluation framework. Utterances will be provided embedded in continuous audio with
ground truth VAD annotations.


At time of launch in February we will provide:
- a development test set, recorded by 4 US talkers across 4 noise environments,
- a real training set, comprised of 2000 utterances spoken by 4 US talkers in noisy
environments plus several hours of noise background per environment,
- tools for generating a simulated training set by remixing WSJ and background audio with
impulse responses estimated from the real data,
- a reference speech enhancement system and a state-of-the-art DNN-based Kaldi ASR system.

As with previous CHiME challenges we invite participation from both the signal processing
and the speech recognition communities. To support teams who lack access to the necessary
GPU infrastructure required to run the evaluation system, we will offer 'remote
evaluation' as a service.

If you are considering participating please email and you will
be added to the email list for receiving further updates.


Feb 20, 2015         --  Launch - Training data + dev data release
May 15, 2015         --  Test set released
July 15, 2015        --  Challenge paper submission deadline
September 11, 2015   --  Paper notification & release of CHiME-3 results
December 13-17, 2015 --  ASRU Workshop


Jon Barker, University of Sheffield,
Ricard Marxer, University of Sheffield,
Emmanuel Vincent, Inria,
Shinji Watanabe, MERL,

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