Comment by gok

The goal of making a large, publicly available training corpus for ASR is incredibly admirable, but this approach is problematic. People speak entirely differently when reading from a script. Models trained on read speech (like LibriSpeech) generally don't perform well on spontaneous speech test sets (like Switchboard). Transcribing speech that was read from a script isn't a particularly interesting problem.

This effort would be more interesting if it could collect speech data in a more specific domain, like web search queries.