How to write down sound of laugh in speech


I'm listening to some dialogues in Japanese and I write them down. I need to
write down sound of laughter in sentence (speech) like in English for example

> Ha ha

What I need should have notion of _laughing at someone_. Is it just simple

> 「ハハ」




That is fine. Alternatives are:

> クスクス 'silently laughing while making fun of someone'  
>  ウフフ 'smiling somewhat silently and often happily'  
>  エヘヘ 'smiling because of being ashamed'  
>  デへへ 'smiling with a slight implication of 変態-ness'  
>  アハハ, ワハハ, ワッハッハ 'giggling'  
>  ガハハ 'giggling out loud or a fat person giggling'  
>  ゲラゲラ 'giggling continuously'

A famous ambiguous sentence when written in hiragana, showing the importance
of having hiragana, katakana, and kanji:

> ははははははとわらった。  
>  Interpretation 1: 母はハハハと笑った。  
>  Interpretation 2: ハハハハハハと笑った。




That is fine. Alternatives are:

> クスクス 'silently laughing while making fun of someone'  
>  ウフフ 'smiling somewhat silently and often happily'  
>  エヘヘ 'smiling because of being ashamed'  
>  デへへ 'smiling with a slight implication of 変態-ness'  
>  アハハ, ワハハ, ワッハッハ 'giggling'  
>  ガハハ 'giggling out loud or a fat person giggling'  
>  ゲラゲラ 'giggling continuously'

A famous ambiguous sentence when written in hiragana, showing the importance
of having hiragana, katakana, and kanji:

> ははははははとわらった。  
>  Interpretation 1: 母はハハハと笑った。  
>  Interpretation 2: ハハハハハハと笑った。

