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Call for Papers for Special Session “Multilingual Speech Processing”


  • Oriental languages involve some common properties as well as sufficient diversity in acoustic, phonetic, lexical and linguistic aspects, leading to interesting questions such as which languages share more and which languages are more discriminant, and how the commonality and diversity can be used to assist speech processing research. This special session focuses on multilingual speech processing for oriental languages, including but not limited to the following topics:
  •  Multilingual phonetic and phonological analysis
  •  Multilingual speech recognition
  •  Multilingual speaker recognition
  •  Multilingual speech synthesis
  •  Multilingual language understanding

  • To assist the research on multilingual speech processing, the special session offers a multilingual speech database AP16-OL7 (provided by Speechocean ( that involves 7 languages, 80h of speech data in total, as well as the associated resources. Participants to the special session can apply for AP16-OL7 for free if they need data to evaluate their research.

Important date

  •  June 06 AP16-OL7 training/dev data release
  •  June 30 Paper submission deadline
  •  Aug. 31 Paper acceptance notification

Call for Submissions to the oriental language recognition (OLR) challenge


The AP16-OL7 database involves 7 oriental languages, 80h of speech signals in total. This special session calls for a multilingual language recognition challenge based on this database.

  • The participants to the challenge are encouraged to submit the system design and results to the special session “multilingual speech processing”, although they don’t have to.
  • Since the test data will be released later than the paper submission deadline, you can use the dev set for your paper publication.
  • More details about the data and the challenge is here.

Important date

  • June 06 AP16-OL7 training/dev data release
  • June 30 Paper submission deadline
  • July 30 AP16-OL7 test data release
  • 12:00 pm, August 1, prior submission deadline
  • 12:00 pm, Oct. 2, full submission deadline
  • 12:00 pm, Dec, 10, extended submission deadline
  • APSIPA 2016: challenge result release


If you are interested to participate the challenge, or if you have any other questions, comments, suggestions about the challenge, please send email to the organizer:

  • Dr. Dong Wang (
  • Mr. Difei Tang (
  • Ms. Qing Chen (

AP16-OLR challenge results released

Cavg results

Rank Team Cavg EET% minDCF IDR% Main researchers
1 NUS and I2R (1), Singapore 1.13 1.09 0.0108 97.56 Haizhou Li, Hanwu Sun, Kong Aik Lee, Nguyen Trung Hieu, Bin Ma
2 NUS and I2R (2), Singapore 1.70 1.02 0.0101 97.60 Haizhou Li, Hanwu Sun, Kong Aik Lee, Nguyen Trung Hieu, Bin Ma
3 USTC, China 1.79 2.17 0.0205 96.94 Wu Guo
4 NTUT, Taiwan, China 5.86 5.88 0.0586 87.02 Yuanfu Liao , Sing-Yue Wang
5 MMCL_RUC, China 6.06 6.16 0.0610 86.21 Haibing Cao, Qin Jin
6 PJ-Han, Germany 14.00 17.34 0.1365 77.65 Anonymous
7 NTU, Singapore 14.72 17.44 0.1657 71.44 Haihua Xu
8 XS-CO, China 36.99 40.26 0.3924 31.91 Anonymous
9 TLO, China 50.00 53.34 0.4999 12.37 Anonymous
  • Red submissions are better than the baseline
  • USTC is the only prior submission
  • NUS and I2R systems used 40 days

DET curves


More details

  • More details are in the slides on the AP16 special session. Click here