Midori Sawato's voice is one I'm familiar with. I own several silent Japanese movies on DVD where she does the benshi work that enlivens these great films.
The Japan Times has a good article on her "Carrying on the art of silent film narration". She has even appeared in US venues such as the Pacific Film Archives in Berkeley.
If you wish to get DVD discs of Japanese silent films with benshi accompanyment you can do so from Digital Meme. Hum, there are some titles I have yet to get, think I'll place an order.