Publication Details

Automatic Speech Analysis Framework for ATC Communication in HAAWAII

MOTLÍČEK Petr, PRASAD Amrutha, NIGMATULINA Iuliia, HELMKE Hartmut, OHNEISER Oliver and KLEINERT Matthias. Automatic Speech Analysis Framework for ATC Communication in HAAWAII. In: Proceedings of the 13th SESAR Innovation Days. Seville: SESAR Joint Undertaking, 2023, pp. 1-9. Available from:
Czech title
Systém pro automatickou analýzu řeči pro letecké komunikace v projektu HAAWAII
conference paper
Motlíček Petr, doc. Ing., Ph.D. (DCGM FIT BUT)
Prasad Amrutha (DCGM FIT BUT)
Nigmatulina Iuliia (IDIAP)
Helmke Hartmut (DLR)
Ohneiser Oliver (DLR)
Kleinert Matthias (DLR)

HAAWAII project, Speech activity detection, Speaker segmentation, Speaker role classification, Automatic Speech Recognition.


Over the past years, several SESAR funded ex- ploratory projects focused on bringing speech and language technologies to the Air Traffic Management (ATM) domain and demonstrating their added value through successful applications. Recently ended HAAWAII project developed a generic archi- tecture and framework, which was validated through several tasks such as callsign highlighting, pre-filling radar labels, and readback error detection. The primary goal was to support pilot and air traffic controller communication by deploying Automatic Speech Recognition (ASR) engines. Contextual information (if available) extracted from surveillance data, flight plan data, or previous communication can be exploited via entity boosting to further improve the recognition performance. HAAWAII proposed various design attributes to integrate the ASR engine into the ATM framework, often depending on concrete technical specifics of target air navigation service providers (ANSPs). This paper gives a brief overview and provides an objective assessment of speech processing components developed and integrated into the HAAWAII framework. Specifically, the following tasks are evaluated w.r.t. application domain: (i) speech activity detection, (ii) speaker segmentation and speaker role classification, as well as (iii) ASR. To our best knowledge, HAAWAII framework offers the best performing speech technologies for ATM, reaching high recognition accuracy (i.e., error-correction done by exploiting additional contextual data), robustness (i.e., models developed using large training corpora) and support for rapid domain transfer (i.e., to new ATM sector with minimum investment). Two scenarios provided by ANSPs were used for testing, achieving callsign detection accuracy of about 96% and 95% for NATS and ISAVIA, respectively.

Proceedings of the 13th SESAR Innovation Days
13th SESAR Innovation Days, Seville, ES
SESAR Joint Undertaking
Seville, ES
   author = "Petr Motl\'{i}\v{c}ek and Amrutha Prasad and Iuliia Nigmatulina and Hartmut Helmke and Oliver Ohneiser and Matthias Kleinert",
   title = "Automatic Speech Analysis Framework for ATC Communication in HAAWAII",
   pages = "1--9",
   booktitle = "Proceedings of the 13th SESAR Innovation Days",
   year = 2023,
   location = "Seville, ES",
   publisher = "SESAR Joint Undertaking",
   language = "english",
   url = ""
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