Gary Wang
Gary Wang is a Google researcher whose work spans speech recognition and text-to-speech. He coauthored speech-augmentation and semi-supervised recognition methods, then contributed to research on accented speech, multilingual recognition and synthesis, and text injection for ASR. His 2025 work includes a robust ASR paper and a speech-text prompting patent application; a 2026 patent application covers zero-shot cross-lingual voice transfer for text-to-speech. As of October 2026, he works on speech recognition and text-to-speech at Google Research.
Timeline
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2020
SCADA for speech recognition
In 2020, he coauthors SCADA, which combines augmentation policies, consistency measures and model regularization to improve speech recognition. It reports an 18% relative reduction in word error rate on LibriSpeech.
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2021
Semi-supervised ASR
In 2021, he coauthors a study that combines multilingual speech synthesis on unspoken text with Noisy Student Training on untranscribed audio. The methods yield up to a 14.4% relative reduction in word error rate on a voice-search task.
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2022
Accented speech recognition
In 2022, he coauthors a study on accented speech recognition that discusses benchmarks, wav2vec 2.0 pre-training, training approaches and corpora for evaluating linguistic diversity.
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2023
Google USM
The Google USM paper names him as a coauthor in 2023. It describes a single large ASR model for 100+ languages, pretrained on 12 million hours of unlabeled multilingual data spanning more than 300 languages.
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2023
Multilingual speech synthesis
In 2023, he coauthors Virtuoso, a speech-text framework for multilingual text-to-speech. Models trained with Virtuoso produce more natural and intelligible speech than baseline models in seen languages, and synthesize speech for unseen languages without paired TTS data.
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2024
Text injection with ASTRA
In 2024, he coauthors ASTRA, which injects text into ASR training and aligns speech and text through a weighted RNNT objective. The method matches duration-based approaches on the FLEURS benchmark.
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2025
Robust ASR and speech prompting
In 2025, he coauthors Speech Re-painting for Robust ASR with Kyle Kastner and colleagues. A Google patent application published in September 2025 names him as an inventor on Speech-text prompting for speech tasks; the method resynthesizes speech in a reference speaker’s voice.
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As of October 2026
Google speech research
As of October 2026, he works on speech recognition and text-to-speech at Google Research. A patent application published in March 2026 names him as an inventor on a zero-shot cross-lingual voice-transfer method for text-to-speech.
Sources and credits
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- SCADA: Stochastic, Consistent and Adversarial Data Augmentation to Improve ASR
- Semi-Supervision in ASR: Sequential Mixmatch and Factorized TTS-Based Augmentation
- Accented Speech Recognition: Benchmarking, Pre-training, and Diverse Data
- Google USM: Scaling Automatic Speech Recognition Beyond 100 Languages
- Virtuoso: Massive Multilingual Speech-Text Joint Semi-Supervised Learning for Text-to-Speech
- ASTRA: Aligning Speech and Text Representations for Asr without Sampling
- Google at ICASSP 2025
- Speech-text prompting for speech tasks
- Gary Wang
- Zero-Shot Cross-Lingual Voice Transfer for Text-To-Speech