日本語は、
(1)表音文字が2つとラテン文字があります
(2)それ以外に複数の読み方と意味を持つ漢字がたくさんあります。
だから、日本語は音声を文字にするためには少なくとも2回ほどの処理と選択を行いますので、音声と文字との距離が非常に遠いと言えます。

In Japanese, for example,
(1) two kinds of phonetic letters and Latin alphabet(Roma ji) are in use,
(2)many Chinese characters have plural pronunciations of On-yomi and Kun-yomi.
Therefore, Japanese is said that the sounds and the letters' distance is very far.
So in the document making process, a stenographer should take at least two processes in choosing and picking up the final written sentence.