הרעש מבחוץ מרגיז אותי יותר ממה שהוא מרגיז אותה.

Because the subject is הרעש (the noise), which is a singular masculine noun in Hebrew.
So the verb agrees with הרעש, not with me or her.

• הרעש ... מרגיז = the noise ... annoys
• If the subject were feminine, the verb would change accordingly.

So מרגיז means annoys/is annoying in the masculine singular form because הרעש is masculine singular.

Because אותי and אותה are direct object forms, while אני and היא are subject forms.

In this sentence, the noise is the subject, and me / her are the people affected by the action:

• הרעש מרגיז אותי = The noise annoys me
• הרעש מרגיז אותה = The noise annoys her

So:

• אני = I
• אותי = me
• היא = she
• אותה = her

Hebrew uses the אות- forms for definite direct objects when the object is a pronoun.

מבחוץ means from outside or coming from outside.

So הרעש מבחוץ is literally something like:

• the noise from outside
• the outside noise

It is made from:

• מ־ = from
• בחוץ = outside

In natural English, you usually would not translate it word-for-word. You would just say the noise from outside.

הרעש has ה־ because it means the noise, a definite noun.

But מבחוץ is not a regular noun here; it is an adverbial expression meaning from outside. So it does not take ה־ in this sentence.

Compare:

• רעש = noise
• הרעש = the noise
• מבחוץ = from outside

So Hebrew is saying the noise from outside, not the from-the-outside.

This is the comparison structure more than ... when what follows is a whole clause.

Here:

• יותר = more
• ממה ש... = roughly than what / than the way that ...

So:

• יותר ממה שהוא מרגיז אותה
  = more than he/it annoys her
  = more naturally, more than it annoys her

This structure is very common in Hebrew when comparing one full situation to another.

Hebrew often repeats the verb in comparisons like this to make the clause complete and clear.

So:

• הרעש מבחוץ מרגיז אותי יותר ממה שהוא מרגיז אותה

literally has both parts:

1. The noise from outside annoys me
2. than it annoys her

That repetition is normal and natural.

In some contexts, Hebrew can shorten things, but with this sentence the full repeated verb sounds clear and standard. For a learner, it is best to understand this as a very normal comparison pattern.

Yes, the subject is already known, but Hebrew often includes a pronoun in this kind of comparison clause.

Here הוא refers back to הרעש.

So:

• ממה שהוא מרגיז אותה = than the way it annoys her / than it annoys her

Including הוא makes the clause feel complete and explicit.

In some cases, Hebrew may omit a pronoun when the verb already shows the subject clearly, but here the third-person singular verb מרגיז could refer to he or it, so using הוא helps anchor the meaning.

Hebrew does not have a separate everyday pronoun exactly like English it. Instead, nouns are treated as masculine or feminine, and pronouns match that gender.

Since רעש is masculine, Hebrew refers back to it with הוא.

So:

• הרעש ... הוא ...
  literally = the noise ... he ...
• but in natural English = the noise ... it ...

This is completely normal in Hebrew. A masculine noun takes הוא, and a feminine noun takes היא when referred to with a pronoun.

Yes.

Use יותר מ... when comparing directly to a noun or amount:

• יותר ממנה = more than her
• יותר מרעש = more than noise

But use יותר ממה ש... when what follows is a whole clause:

• יותר ממה שהוא מרגיז אותה = more than it annoys her

So in this sentence, a full clause follows, not just a noun, which is why ממה ש... is used.

Not with the same meaning.

• הרעש מבחוץ מרגיז אותי יותר ממנה would sound like The noise from outside annoys me more than her.
• In English, that can be ambiguous:
  • Does it mean it annoys me more than it annoys her?
  • Or it annoys me more than it annoys some other female person entirely?
  • Or even I am more annoying than she is in some comparison patterns?

Hebrew often uses the fuller structure יותר ממה שהוא מרגיז אותה to avoid ambiguity and clearly compare two actions or effects.

The sentence is structured like this:

• הרעש מבחוץ = the noise from outside
• מרגיז אותי = annoys me
• יותר ממה שהוא מרגיז אותה = more than it annoys her

So the overall pattern is:

[subject] + [verb + object] + [comparison clause]

That is very normal Hebrew word order.

A simple learner-friendly pronunciation would be:

ha-RA'ash mi-ba-CHUTZ mar-GIZ o-TI yo-TER mi-MA she-HU mar-GIZ o-TA

A few notes:

• הרעש = ha-RA'ash
• מבחוץ = mi-ba-CHUTZ
• מרגיז = mar-GIZ
• אותי = o-TI
• אותה = o-TA

The main sentence stress in natural speech often falls around the comparison:

... מרגיז אותי יותר ממה שהוא מרגיז אותה

Yes, often you could, but the nuance is slightly different.

• הרעש מבחוץ = the noise from outside
• הרעש שבחוץ = the noise that is outside / the noise outside

In many everyday situations, both can work.
But מבחוץ emphasizes that the noise is coming from outside, which fits this sentence very naturally.

So the original wording is a very good, natural choice.