https://ja.wikipedia.org/wiki/%E9%9F%B3%E5%A3%B0%E8%AA%8D%E8%AD%98
https://www.advanced-media.co.jp/amivoice
https://ledge.ai/speech-recognition/
https://www.ntt.co.jp/md/products/product_33.html
https://www.hba.co.jp/service/amivoice/
https://tech.nikkeibp.co.jp/atcl/nxt/column/18/00001/03338/?ST=nxt_idx_common
https://www.itmedia.co.jp/keywords/speechrecognition.html