Pencere açıksa sokaktan gelen sesleri daha net duyabilirsin.

Açıksa means if it is open / if it's open.

It is built from:

• açık = open
• -sa / -se = the conditional idea if

So:

• açık → open
• açıksa → if (it) is open

In this sentence, it refers to pencere (window), so Pencere açıksa means If the window is open.

You can also think of it as a shortened form of açık ise.

Both are possible, but pencere açıksa is shorter and very natural.

• pencere açıksa = if the window is open
• pencere açık olursa = also if the window is open, but a little more expanded

In Turkish, when using an adjective like açık (open), you often do not need olmak (to be) explicitly. So açıksa is the more compact everyday form.

Turkish has no articles like the or a/an.

So pencere can mean:

• a window
• the window

The exact meaning comes from context. In this sentence, English naturally uses the window, but Turkish just says pencere.

Sokaktan gelen means coming from the street.

It breaks down like this:

• sokak = street
• sokaktan = from the street
• gelen = coming / that comes

So:

• sokaktan gelen sesler = the sounds coming from the street

This is a very common Turkish pattern: a participle like gelen comes before the noun it describes.

Because Turkish marks the idea of from with the suffix -dan / -den / -tan / -ten.

Here:

• sokak = street
• sokaktan = from the street

The sounds are imagined as coming from the street, so the ablative ending is needed.

The -tan form appears because of consonant/vowel harmony rules:

• after k, the suffix appears as -tan

Gelen is a participle from gelmek (to come).

• gelmek = to come
• gelen = coming, that comes

In Turkish, participles are often used where English would use a relative clause:

• sokaktan gelen sesler = the sounds that come from the street = the sounds coming from the street

So gelen is acting like an adjective describing sesleri.

Here sesleri is the definite/specific direct object of the verb duyabilirsin.

Breakdown:

• ses = sound
• sesler = sounds
• sesleri = the sounds / specific sounds (plural accusative)

Turkish often uses the accusative on direct objects when they are specific or definite. Since these are not just any sounds, but specifically the sounds coming from the street, sesleri is natural.

So:

• sesler duyabilirsin would be wrong here
• sesleri duyabilirsin = you can hear the sounds

One extra note: sesleri could mean other things in different contexts, but here it clearly means the sounds as the object.

In Turkish, many adjectives can also function like adverbs without changing form.

• net = clear / distinct
• daha net = more clear / more clearly

So in this sentence:

• daha net duyabilirsin = you can hear more clearly

English usually requires clearly, but Turkish can simply use net.

Duyabilirsin adds the meaning of can / be able to.

Breakdown:

• duy- = hear
• -abil- = be able to / can
• -ir = aorist/general tense marker
• -sin = you

So:

• duyarsın = you hear / you will hear
• duyabilirsin = you can hear

In this sentence, duyabilirsin fits well because the idea is about improved ability or possibility: if the window is open, you can hear the street sounds more clearly.

-sin marks second person singular: you.

So:

• duyabilirim = I can hear
• duyabilirsin = you can hear
• duyabilir = he/she/it can hear
• duyabiliriz = we can hear

It is the part of the verb that tells you who the subject is.

Turkish word order is often Subject/Object + Verb, and the verb usually comes at the end.

This sentence is:

• Pencere açıksa = If the window is open
• sokaktan gelen sesleri = the sounds coming from the street
• daha net = more clearly
• duyabilirsin = you can hear

So the literal order is something like:

If the window is open, the sounds coming from the street more clearly you-can-hear.

That is normal Turkish structure. Also, descriptive elements like sokaktan gelen come before the noun they modify.

Yes, depending on context, that is a reasonable translation.

Duyabilirsin can express:

• you can hear
• you may be able to hear
• sometimes a softer you might hear

But the core meaning is still ability/possibility. In most learning contexts, you can hear the sounds coming from the street more clearly is the clearest translation.

Grammatically, the sounds is better here because sesleri is a specific object.

So the most literal natural translation is:

• the sounds coming from the street

In smoother English, though, people might sometimes just say:

• you can hear sounds from the street more clearly

That sounds natural in English, but Turkish is marking the object more specifically than that.