When Is TTS Augmentation Through a Pivot Language Useful?. (arXiv:2207.09889v1 [cs.CL])

Developing Automatic Speech Recognition (ASR) for low-resource languages is a
challenge due to the small amount of transcribed audio data. For many such
languages, audio and text are available separately, but not audio with
transcriptions. Using text, speech can be synthetically produced via
text-to-speech (TTS) systems. However, many low-resource languages do not have
quality TTS systems either. We propose an alternative: produce synthetic audio
by running text from the target language through a trained TTS system for a
higher-resource pivot …

arxiv augmentation language pivot tts