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· One min read
Jon Barker

We are pleased to announce that registration for the 2nd Clarity Enhancement Challenge (CEC2) is now open.

To register please complete the simple Google form found on the registration page.

The remaining important dates for the challenge are as follows:

  • 25th July 2022: Evaluation data released
  • 1st Sept 2022: 1st round submission deadline for evaluation by objective measure
  • 15th Sept 2022: 2nd round submission deadline for listening tests
  • Sept-Nov 2022: Listening test evaluation period.
  • 2nd Dec 2022: Results announced at a Clarity Challenge Workshop; prizes awarded.

The challenge training, dev data and initial tools are now fully from the Github repository.

If you have any questions please do not hesitate to contact us at claritychallengecontact@gmail.com.

· One min read
Jon Barker

We are pleased to announce the release of the 2nd Clarity Enhancement Challenge (CEC2) baseline system code.

The baseline code has been released in the latest commit to the Clarity GitHub repository.

The baseline system perform NAL-R amplification according to the audiogram of the target listener, followed by a simple gain control and output of the signals to 16-bit stereo wav format. The system has been kept deliberately simple with no microphone array processing or attempt at noise cancellation.

HASPI scores for the dev set have been measured. The scores are as follows.

SystemHASPI
Unprocessed0.1615
NAL-R baseline0.2493

See here for further details.

If you have any problems using the baseline code please do not hesitate to contact us at claritychallengecontact@gmail.com, or post questions on the Google group.

· One min read
Jon Barker

We are pleased to announce the launch of the 2nd Clarity Enhancement Challenge (CEC2).

The website has been fully updated to provide you with all the information you will need to participate in the challenge.

The schedule for the challenge is as follows:

  • 13th April 2022: Release of training and development data; initial tools.
  • 30th April 2022: Release of full toolset and baseline system.
  • 1st May 2022: Registration for challenge entrants opens.
  • 25th July 2022: Evaluation data released
  • 1st Sept 2022: 1st round submission deadline for evaluation by objective measure
  • 15th Sept 2022: 2nd round submission deadline for listening tests
  • Sept-Nov 2022: Listening test evaluation period.
  • 2nd Dec 2022: Results announced at a Clarity Challenge Workshop; prizes awarded.

The challenge training, dev data and initial tools will be available from 13th April. In the meantime, please visit the CEC2 Intro page to learn more about the task.

If you have any questions please do not hesitate to contact us at claritychallengecontact@gmail.com.

· 2 min read
Lara Harris

The Clarity team are hosting two live sessions this month related to the Prediction Challenge. Everyone is welcome to attend, whether or not you have registered to participate in the challenge or are still considering signing up.

The presentations will be very similar to the webinar in November. These events are intended as a chance for people in different time zones to attend live and ask the team questions.

Hosting is via Microsoft Teams. You can join from your browser without needing to install Teams, but if you join from a mobile device you may need to install the Teams app.

Webinar - Challenge Overview

Friday 14th January

9:00 GMT | 17:00 CST (GMT+8)

Click here to join the webinar

An introduction to the aims of the challenge and some background to the problem of speech intelligibility prediction for hearing aids:

  • Welcome, introduction to Clarity.
  • Speech intelligibility models: Overview and why are they needed.
  • Hearing impairment speech intelligibility prediction.
  • The prediction challenge - details and how you can sign up to participate.
  • Audience questions / discussion.

The presentations will be recorded and made available online shortly after the event. The Q&A discussion will not be recorded.

You are welcome to join slightly later if you are only interested in joining for the Q&A section (presentations should finish around 9:40 GMT).

Live Q&A session

Monday 17th January

17:00 GMT | 12:00 EST (GMT-5) | 9:00 PST (GMT-8)

Click here to join the Q&A

A chance to ask the team questions about the Clarity Prediction Challenge - for anyone that could not attend the webinar on Friday 14th due to time zone differences.

Please note there will be no presentations in this session. The talks from Friday’s webinar will be uploaded to the Clarity project YouTube channel later in the day so you are invited to watch those before joining this live Q&A.

· One min read
Lara Harris

The Clarity team recently hosted a webinar to introduce the Prediction Challenge. The recording is now available to view online:

Slides

The slides are available to download:

1 Welcome and Overview

2 Speech Intelligibility Models

3 Hearing Impariment and SI Prediction

4 Clarity Prediction Challenge Details

Note that we did not record the Q&A session at the end, but if you have questions about taking part in the challenge you can contact us at claritychallengecontact@gmail.com

· One min read
Trevor Cox

Welcome to the new Clarity CPC1 site for the first prediction challenge launching in autumn 2021. Feel free to look around. At the moment we're still doing listening tests and preparing the data, so the download links don't work. If anything is unclear or you've got questions, please contact us through the Google group.

· One min read
Jon Barker

The CEC1 submission deadline has now passed. Thank you to all the teams who sent us signals.

Please remember to submit your finalised system descriptions by June 22nd to the Clarity workshop following the instructions provided on the workshop website.

We are currently busy evaluating the submissions using the MBSTOI metric. We will be contacting teams on the 22nd with details of how to prepare signals for the listening panel evaluation.

If you have been working on the challenge but missed the submission deadline then please do get in contact. We will still be happy to receive your signals and system descriptions. Although late entries will not be eligible for the official challenge ranking, we will be happy to compute the eval set MBSTOI score for you and may even be able to arrange listening test evaluation through our panel.

For any questions please contact us at claritychallengecontact@gmail.com or by posting to the Clarity challenge google group.

· 2 min read
Jon Barker

The evaluation dataset is now available to download from the myairbridge download site. The evaluation data filename is clarity_CEC1_data.scenes_eval.v1_1.tgz.

Full details of how to prepare your submission are now available on this site. Please read them carefully.

Registration: Teams must register via the Google form on the How To Submit page of this site. (Please complete this even if you have already completed a pre-registration form). Only one person from each team should register. Only those who have registered will be eligible to proceed to the evaluation. Once you have registered you will receive a confirmation email, a team ID and a link to a Google Drive to which you can upload your signals.

Submission deadline: The deadline for submission is the 15th June.

The submission consists of two components:

i) a technical document of up to 2 pages describing the system/model and any external data and pre-existing tools, software and models used. This should be prepared as a Clarity-2021 workshop abstract and submitted to the workshop.

ii) the set of processed signals that we will evaluate using the MBSTOI metric. Details of how to name and package your signals for upload can be found on the How To Submit page.

Listening Tests: Teams that do well in the MBSTOI evaluation will be notified on 22nd June and invited to submit further signals for the second stage Listening Test evaluation.

For any questions please contact us at claritychallengecontact@gmail.com or by posting to the Clarity challenge google group.