I have been listening to audiobooks using Audiobook.jp for two years.
Audiobook.jp to Audible.com
Audiobook.jp offers included option for 880 yen. It is very reasonable and I have read more than 200 books on the site. At first I listened to books up to 3 times faster than usual but gradually I got used to listening to books faster and now I listen to them 4 times faster.
To improve my English, I decided to move to Audible, which is presented American Amazon. I never thought I could reach out American serves but apparently it is possible. I feel a bit uncomfortable to move a new place, but I think I have listened a lot in Japanese and it is time to start something new.
Speedup
There are several ways to speedup audio files. When I watch YouTube on my smart phone, I use Kiwi browser and works some extensions to speed up.
