Notices

September 3, 2025

• Added information to the FAQ page regarding the treatment of noise and reverberation by Track 1 submissions and in crowdsourced evaluations: https://lrac.short.gy/faq-challenge-phases-and-submissions

September 1, 2025

• Added information to the FAQ page about viewing and publishing results on the leaderboard: https://lrac.short.gy/faq-challenge-phases-and-submissions

August 29, 2025

• Added further clarifications to the FAQ section on how to calculate and report the computational complexity: https://lrac.short.gy/faq-latency-compute

• Updated Call for Papers PDF for the 2026 LRAC Workshop with paper submission track information: LRAC-Workshop-Call-for-Papers.pdf
• The objective metric results of Track 1 baseline system on the open test set are now available on the leaderboard website.

August 28, 2025

• Added README to the baseline model training repository: https://github.com/cisco-open/espnet/tree/master/egs2/lrac

August 27, 2025

• Added clarifications to the FAQ section on how to calculate and report the computational complexity: https://lrac.short.gy/faq-latency-compute

• The list of Satellite Workshops has been posted on the official ICASSP 2026 website: https://2026.ieeeicassp.org/satellite-workshops

• Here is the link to the ICASSP 2026 Satellite Workshop paper submission system for the LRAC Workshop: https://cmsworkshops.com/ICASSP2026/Papers/Submission.asp?Type=WS&ID=3. The submission deadline for the peer review archival track papers is Oct 22, 2025. Accepted papers will be presented at the workshop and published on IEEE Xplore.

August 26, 2025

• Added clarifications to the FAQ regarding the solution types, in particular for possible solutions with bitrate specific modules and blocks.

• Baseline model description has been expanded with detailed information. We also added Latency Calculation Guidelines section to clarify the latency calculations for the challenge entries.

• The ESPNet based baseline model training repository is now available: https://lrac.short.gy/baseline-repo

• The 2026 LRAC Workshop website is live: https://lrac.short.gy/2026-lrac-workshop

August 19, 2025

• Call for Papers for the LRAC Satellite Workshop at IEEE ICASSP 2026 is live: https://lrac.short.gy/workshop-cfp

August 18, 2025

• The open test set is now available at: https://github.com/cisco/multilingual-speech-testing/tree/main/LRAC-2025-test-data/open-test-set. The automated use of the test data on the leaderboard (codabench) website will be enabled in the coming days. Further open test set information has been added to the Evaluation section of the Challenge website: https://lrac.short.gy/test-materials.

• The list of languages included under the Multilingual Librispeech train set in Figure 1 of the Datasets section: https://lrac.short.gy/datasets has been corrected. The languages permitted for use in this year’s edition of the challenge for training models using this dataset follow the list used in the Urgent Challenge and include: English, German, and French only.

• We are preparing a more detailed guidance related to latency evaluation of submissions. We will share this guidance on the Challenge website once ready.

August 12, 2025

• Added clarifications to the FAQ, Participate and Evaluation sections of the website. Added Objective Metrics section to the Evaluation page.

August 11, 2025

• Workshop section is now live on the challenge website: https://lrac.short.gy/workshop. Details to be updated soon.

August 10, 2025

• The FAQ section is now live on the challenge website: https://lrac.short.gy/faq. Please check back regularly.

August 9, 2025

• Next week, we anticipate releasing the official baseline source code and the open test set for use during the development phase of the challenge. We also plan to publish a FAQ section on the challenge website to address commonly asked questions. Details regarding the Satellite Workshop will be shared in the coming weeks.

August 8, 2025

• The dataset page has been updated with file filtering (curation) details for training speech and noise datasets, see: https://lrac.short.gy/datasets

August 7, 2025

• The data preparation scripts are now available in the data generation repository: https://lrac.short.gy/data-gen-repo

August 5, 2025

• Revised the Official Rules such that the mandatory system description papers are minimum 2-page + references, rather than fixed 2-page limit and that these can cover both tracks or separate papers can be submitted for separate tracks. Please refer to: https://lrac.short.gy/final-submission (revisions are marked in purple).

July 31, 2025

• The Challenge Registration (including the leaderboard website is live! To register, follow: https://lrac.short.gy/how-to-enter

July 30, 2025

• Our proposal for an ICASSP 2026 Satellite Workshop has been accepted! The workshop date is: May 4, 2026. Further details to follow, and we look forward to seeing you there!

July 21, 2025

• The LRAC Challenge Official Rules finalized, see: https://lrac.short.gy/rules

July 7, 2025

• The LRAC Challenge Website and Call for Participation go live!

June 20, 2025

• We are pleased to announce that the 2025 LRAC Challenge has been accepted to the IEEE SPS Challenge Program.