kono heya ha sizuka desu ga, ue no heya no oto ga sukosi ki ni narimasu.

静か is a な-adjective.

When a な-adjective comes before a noun, it takes な, as in:

• 静かな部屋 = a quiet room

But when it comes at the end of a sentence and is followed by です, you do not use な:

• この部屋は静かです = This room is quiet.

So:

• 静かな部屋 = a quiet room
• 部屋は静かです = the room is quiet

That is why 静かです is correct here.

Here, が means something like but or although.

So:

• この部屋は静かですが = This room is quiet, but...

It connects the first statement to a contrasting second statement:

• この部屋は静かです = This room is quiet.
• 上の部屋の音が少し気になります = The sound from the room above bothers me a little / concerns me a little.

A natural English sense is:

• The room is quiet, but the noise from upstairs bothers me a little.

This が is softer than a strong English but. It often sounds polite and less blunt.

上 means up, above, or the upper part. By itself, it can be vague.

上の部屋 means:

• the room above
• the upstairs room

The の connects 上 to 部屋, so 上 modifies 部屋.

Compare:

• 上 = above / upstairs / on top
• 上の部屋 = the room above

In English we often say the room upstairs or the room above. Japanese uses 上の部屋 to express that idea clearly.

Each の links one noun to another.

Breakdown

• 上の部屋 = the room above
• 上の部屋の音 = the sound of/from the room above

So the structure is:

1. 上 → 部屋
   (the room above)

2. 上の部屋 → 音
   (the sound from the room above)

Japanese often chains nouns this way. A very literal breakdown would be:

• above-room's sound

But natural English is:

• the sound from the room above
• the noise upstairs

This is a very common question.

The verb-like expression here is 気になる, which literally works more like:

• something becomes a concern
• something catches one’s attention
• something bothers one

With 気になる, the thing that bothers you or concerns you is usually marked with が:

• 音が気になる = the sound bothers me / the sound is on my mind

So 音 is treated as the thing that is concerning, not as a direct object marked by を.

This is different from an English pattern like I mind the noise, where the noise is the object. Japanese uses a different structure.

気になる is a very useful expression, but it does not always translate neatly into one single English phrase.

Possible meanings include:

• to bother someone
• to concern someone
• to be noticeable
• to be on someone’s mind
• to catch someone’s attention

In this sentence, 音が少し気になります means something like:

• The noise bothers me a little.
• I’m a little bothered by the noise.
• The sound from the room above is a little noticeable.

It does not necessarily mean the speaker is extremely upset. It sounds fairly moderate and polite.

少し means a little.

Here it softens the complaint:

• 音が気になります = The noise bothers me.
• 音が少し気になります = The noise bothers me a little.

This makes the sentence sound less harsh and more natural, especially in polite situations such as talking to a landlord, hotel staff, or a neighbor.

It suggests:

• the issue exists
• but the speaker is not making an exaggerated complaint

Because they do different jobs.

は

は marks the topic: what the sentence is about.

• この部屋は = As for this room,...

が

が marks the specific thing that has the property or causes the issue in that clause.

• 音が少し気になります = the sound bothers me a little

So the sentence is structured like this:

• As for this room, it is quiet, but the sound from the room above bothers me a little.

This is a very common Japanese pattern: one topic for the overall sentence, and a different が-marked subject inside a clause.

音 literally means sound, but depending on context it can be understood as noise.

In this sentence:

• 上の部屋の音 = the sound from the room above

Because the speaker says it 気になります, English often translates it as noise, since it is unwanted or distracting.

So:

• literal: the sound from the room above
• natural: the noise from upstairs

Japanese often uses a more neutral word like 音, and the negative feeling comes from the rest of the sentence.

気になります is the present polite form of 気になる.

Dictionary form

• 気になる

Polite form

• 気になります

The Japanese present tense often covers both:

• it bothers me
• it is bothering me
• it tends to bother me

So in context, this can mean:

• The sound bothers me a little
• I’m a little bothered by the sound

Japanese does not always separate simple present and present progressive the way English does.

Yes, but a fairly polite and mild one.

Several parts soften it:

• ですが instead of a blunt でも
• 少し = a little
• 気になります = a relatively gentle way to express discomfort

So it sounds like a careful, polite observation rather than an angry complaint.

It gives the feeling of:

• The room is quiet overall, but I do notice a bit of noise from upstairs.

This kind of wording is very common when Japanese speakers want to mention a problem without sounding too direct.