问题
Can I improve Google speech API recognition by give him a words list (in my case the request of user is very predictable) to make recognition more accurate?
回答1:
I can't speak for Chrome, but in Android they are quite clear that you cannot provide a grammar. In Android speech recognition you are limited to a choice of two models: "free form" and "web search".
See Android: Speech Recognition Append Dictionary?
回答2:
Correct answer is: no, you can't. =(
回答3:
Updated answer for August 20, 2019
Although currently in beta, Google has released new capability which allows you to
include a list of phrases to act as "hints" to Cloud Speech-to-Text. Providing these hints, a technique called speech adaptation, helps Speech-to-Text API to recognize the specified phrases from your audio data."
See https://cloud.google.com/speech-to-text/docs/context-strength
来源：https://stackoverflow.com/questions/7433801/grammar-in-google-web-speech-api