Israel D. Gebru
Also known as Israel Dejene Gebru
Israel D. Gebru is a machine-learning researcher who works on audio and speech, from audio-visual speaker tracking to neural binaural sound. A bachelor's degree in computer engineering from Addis Ababa University in 2008 and a master's degree in telecommunication engineering from the University of Trento in 2013 came before a PhD in Radu Horaud's PERCEPTION team at Inria Grenoble, where they studied from 2014 to 2018. In April 2018, they joined Facebook Reality Lab in Pittsburgh, where they coauthored Neural Synthesis of Binaural Speech From Mono Audio, which received an outstanding paper award at ICLR in 2021. AudioDec followed in 2023 and BinauralFlow in 2025, with their affiliation listed as Meta's Codec Avatars Lab, and a March 2026 paper, Ethio-ASR, covered speech recognition for five Ethiopian languages and listed them with Ethiopic.ai.
Timeline
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2008–2013
Degrees in Addis Ababa and Trento
A B.S. in Computer Engineering from Addis Ababa University comes in 2008. After working as an engineer at ZTE from 2009 to 2011, they receive an M.S. in Telecommunication Engineering from the University of Trento in 2013.
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2014–2018
PhD at Inria Grenoble
From 2014 to 2018, they are a PhD student in the PERCEPTION team at Inria Grenoble, advised by Radu Horaud. The thesis work covers robust clustering techniques and dynamic Bayesian networks for audio-visual multiple-person localization, tracking and speech diarization.
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2016–2018
Two TPAMI papers
IEEE Transactions on Pattern Analysis and Machine Intelligence publishes two of their papers, EM Algorithms for Weighted-Data Clustering with Applications to Audio-Visual Scene Analysis in 2016 and Audio-Visual Speaker Diarization Based on Spatiotemporal Bayesian Fusion in 2018. The diarization paper, with Sileye Ba, Xiaofei Li and Radu Horaud, combines multiple-person visual tracking with multiple speech-source localization to match speech signals to speakers.
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2017
HSCMA best paper award
Their paper Audio-visual Tracking by Density Approximation in a Sequential Bayesian Filtering Framework wins the best paper award at the IEEE Fifth Joint Workshop on Hands-free Speech Communication and Microphone Arrays in San Francisco in March 2017. A six-month research internship at Oculus (Facebook) Research in Pittsburgh also falls in 2017.
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April 2018
Joining Facebook Reality Lab
In April 2018, they defend their PhD and join Facebook Reality Lab in Pittsburgh as a postdoctoral research scientist. Since 2019, they are a Research Scientist with Facebook Reality Labs there.
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2021
ICLR outstanding paper award
With Alexander Richard, Dejan Markovic and four other coauthors, they present Neural Synthesis of Binaural Speech From Mono Audio at ICLR 2021. The network takes a single-channel audio source and produces two-channel binaural sound in real time, conditioned on the listener's position and orientation relative to the source. The paper receives an outstanding paper award at the conference.
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2023–2025
AudioDec, RAF and BinauralFlow
In 2023, they coauthor AudioDec, an open-source streaming neural audio codec that reconstructs 48 kHz speech at 12 kbps with under 6 ms latency on a GPU. Real Acoustic Fields, a CVPR 2024 paper, presents a dataset of room impulse responses paired with multi-view images and 6DoF pose tracking. BinauralFlow, an ICML 2025 paper that lists them with Meta's Codec Avatars Lab, builds a causal streaming binaural speech synthesis framework on flow matching.
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March 2026
Ethio-ASR and Ethiopic.ai
In March 2026, they coauthor Ethio-ASR, a suite of multilingual speech recognition models trained on five Ethiopian languages: Amharic, Tigrinya, Oromo, Sidaama and Wolaytta. Their affiliation on the paper is Ethiopic.ai.
Career
- Since 2017MetaResearch Intern, Postdoctoral Research Scientist
- 2026Ethiopic.ai
- 2009–2011ZTE CorporationEngineer
Education
- 2018InriaPhD
- 2013University of TrentoM.S. in Telecommunication Engineering
- 2008Addis Ababa UniversityB.S. in Computer Engineering
Sources and credits
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- Israel Dejene Gebru
- Israel D Gebru received the ICLR’21 outstanding paper award!
- Audio-Visual Speaker Diarization Based on Spatiotemporal Bayesian Fusion
- Neural Synthesis of Binaural Speech From Mono Audio
- Neural Synthesis of Binaural Speech from Mono Audio | ML Anthology
- AudioDec: An Open-source Streaming High-fidelity Neural Audio Codec
- Real Acoustic Fields: An Audio-Visual Room Acoustics Dataset and Benchmark
- BinauralFlow: A Causal and Streamable Approach for High-Quality Binaural Speech Synthesis with Flow Matching Models
- BinauralFlow: A Causal and Streamable Approach for High-Quality Binaural Speech Synthesis with Flow Matching Models (arXiv HTML)
- Ethio-ASR: Joint Multilingual Speech Recognition and Language Identification for Ethiopian Languages (arXiv HTML)
- Ethio-ASR: Joint Multilingual Speech Recognition and Language Identification for Ethiopian Languages