问题
Input:
日本が好きです.
Output:
Nippon ga sukidesu.
Phonetical reading is unfortunately not available through Google Translate API.
回答1:
KAKASI is a good, simple tool for what you want to do:
% echo "日本が好きです。" | iconv -f utf8 -t eucjp | kakasi -i euc -Ha -Ka -Ja -Ea -ka
nippongasukidesu.
% echo "日本が好きです。" | iconv -f utf8 -t eucjp | kakasi -i euc -w | kakasi -i euc -Ha -Ka -Ja -Ea -ka
nippon ga suki desu .
Or another solution is to use Yahoo! JAPAN's Japanese Language Processing API. But it might be difficult to use because you need to sign up for Yahoo! JAPAN and register for the API key before using it and the documents are only available in Japanese.
回答2:
Phonetical reading is unfortunately not available through Google Translate API.
Google translate does have that feature - Copy and paste that string into the box, and click "Read Phonetically" which is directly underneath the input text field. It will show you your exact output. It can also verbally read that string to you if you click "Listen".
http://translate.google.com/#
来源：https://stackoverflow.com/questions/5827439/any-tools-to-programmatically-convert-japanese-sentence-into-its-romaji-phoneti