I'm translating this old book I have from Japanese to English, and I come
across the following sentence.

> 背後で聞き覚えのある声 **がして** 、思わず一歩後ずさってしまった。

I think in the above instance the して is being used to emphasis, as defined by
the [fourth definition](https://jisho.org/word/%E3%81%97%E3%81%A6) on
Jisho.org, shown below.

>   1. by (indicating means of action); as (a group, etc.)​
>   2. indicates patient of a causative expression​ - as 〜をして in modern
> Japanese
>   3. acts as a connective - ​after the ren'youkei form of an adjective **
>   4. adds emphasis - ​after an adverb or a particle**
>

What does 'add emphasis' mean, and is my understanding of the use of して in the
above sentence correct?

EDIT: Added answer to my question: 「して」じゃなくて「する」を調べたほうがいいですよ。#7 to be sensed
(of a smell, noise, etc.)​ – Chocolate
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2019-05-07T00:03:24.383
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2019-05-07T02:11:29.063
2019-05-07T02:11:29.063
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question
translation emphasis
What does emphasis mean in the がして of the following sentence?