yeop bangeseo keun soriga nayo.

옆 방 means the room next door or the room beside this one.

• 옆 = side, next to
• 방 = room

So together, it refers to a room that is immediately adjacent.

A small note: in standard writing, you will often see this written as 옆방 as one word.

Here, 에서 marks the place where something happens or originates.

In 옆 방에서 큰 소리가 나요, the noise is coming from the next room, so 에서 is natural.

Compare:

• 옆 방에 있어요 = It is in the next room.
• 옆 방에서 소리가 나요 = A sound is coming from the next room.

So:

• 에 = location/destination
• 에서 = place where an action/event happens, or source in this kind of sentence

큰 is the form of 크다 used before a noun.

• 크다 = to be big
• 큰 = big, used directly before a noun

So:

• 큰 소리 = a loud/big sound

This is called the attributive form of the adjective.

A learner might expect 크은 from 크다, but 크다 is an irregular-looking but very common adjective:

• 큰 방 = a big room
• 큰 문제 = a big problem
• 큰 소리 = a loud noise / loud voice

That is just a natural Korean expression.

In Korean, 큰 소리 literally means big sound, but in natural English we usually say:

• a loud noise
• a loud sound
• sometimes a loud voice, depending on context

So this is a good example where you should translate by meaning, not word-for-word.

Because 소리 is the subject of the verb 나다 here.

• 소리가 나요 = a sound occurs / a sound comes out / a sound is heard

With 나다, the thing that appears or occurs often takes 이/가.

So:

• 소리가 나요 = A sound is coming out / There is a sound
• not 소리를 나요

That second form is unnatural because 나다 is not normally used like a verb that takes a direct object here.

In this sentence, 나다 means something like:

• to occur
• to come out
• to be produced
• to be heard

So 큰 소리가 나요 means:

• A loud noise is coming out
• There’s a loud noise
• A loud sound is coming from...

This is a very common use of 나다 with things like sound, smell, and problems.

For example:

• 냄새가 나요 = There’s a smell / It smells
• 열이 나요 = I have a fever
• 문제가 나요 = A problem occurs

Because the sentence is describing the existence or emergence of a sound, not the listener’s act of hearing it.

English often says:

• I hear a loud noise from the next room or
• There’s a loud noise from the next room

Korean commonly prefers the second kind of idea here:

• 옆 방에서 큰 소리가 나요 = A loud noise is coming from the next room.

If you wanted to focus on the person hearing it, you could say something different, such as:

• 옆 방에서 큰 소리가 들려요 = I can hear a loud noise from the next room.

So:

• 나다 = the sound is being produced
• 들리다 = the sound is heard

They are different politeness/style levels of the same verb.

• 나요 = polite, conversational
• 납니다 = polite, more formal

So both mean essentially the same thing:

• 옆 방에서 큰 소리가 나요.
• 옆 방에서 큰 소리가 납니다.

The first sounds more natural in everyday conversation.

Yes. Both are good translations.

The Korean sentence does not force one exact English wording. Depending on context, natural translations include:

• There’s a loud noise coming from the next room.
• A loud noise is coming from the next room.
• I hear a loud noise from the next room.
  
  • This last one is a little more interpretive, but still natural in context.

Not always. 큰 소리 can mean different things depending on context.

It can mean:

1. a loud sound/noise

   • 큰 소리가 나요 = There’s a loud noise.

2. a loud voice

   • 큰 소리로 말하지 마세요 = Don’t speak loudly.

3. Sometimes even boasting or talking big in other expressions

   • 큰소리치다 = to boast / to talk big

In your sentence, it clearly means a loud noise/sound.

Yes, but the nuance is a little different.

• 큰 소리가 나요 = a loud sound/noise is coming out
• 시끄러운 소리가 나요 = a noisy/annoying sound is coming out

So:

• 큰 focuses on volume
• 시끄러운 focuses more on the sound being noisy, bothersome, or disruptive

Both can work, but 큰 소리가 나요 is simpler and very common.

Yes. In fact, 옆방 is the standard one-word form you will often see.

So in standard writing, this sentence is often written:

• 옆방에서 큰 소리가 나요.

If you saw 옆 방에서, you would still understand it, but learners should remember that many compound nouns in Korean are commonly written as one word.

A natural pronunciation is roughly:

• 엽빵에서 큰 소리가 나요

A few sound changes happen:

• 옆방 sounds like 엽빵
• 큰 is pronounced close to 큰 with a short, unreleased final consonant
• 소리가 나요 flows smoothly in connected speech

You do not need to pronounce every written consonant in a fully separate way. Korean pronunciation often changes at word boundaries.

Not in this sentence.

Because the idea is a sound is coming from that place, 에서 is the right particle.

• 옆 방에서 큰 소리가 나요 = A loud noise is coming from the next room.

If you used 에, it would sound unnatural here.

큰 소리가 있어요 is unnatural in this context.

For sounds, Korean normally uses 나다, not 있다.

• 소리가 나요 = There is a sound / A sound is coming out
• 소리가 있어요 = not the normal way to say this

So this is something you should memorize as a common pattern:

• 냄새가 나요 = There’s a smell.
• 소리가 나요 = There’s a sound.
• 열이 나요 = I have a fever.

Sometimes yes, but the nuance changes.

• 큰 소리가 나요 = A loud noise is coming out.
  This is the most neutral, natural statement.

• 큰 소리는 나요 = As for a loud noise, there is one / a loud noise does occur.
  This sounds contrastive or topic-marked.

Using 가 is best here because the sentence is simply presenting the sound as the subject of the event.

Usually, yes.

나요 in this context often sounds like:

• There’s a loud noise coming from the next room
• A loud sound is coming from the next room

So it often describes a current situation.

But depending on context, Korean present tense can also be more general. For example, if someone is explaining a recurring problem, it could mean:

• A loud noise comes from the next room.

Still, without extra context, most people will understand it as happening now.