Random phoneme substitutions recover most ASR gains from synthetic accented speech, with targeted edits and ground-truth prosody providing only marginal additional benefits.
Zero shot text to speech augmentation for automatic speech recognition on low- resource accented speech corpora
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Few-Shot Synthetic Accented Speech for ASR Fine-Tuning: What Helps and When?
Random phoneme substitutions recover most ASR gains from synthetic accented speech, with targeted edits and ground-truth prosody providing only marginal additional benefits.