Nadanya sumbang kerana suaranya serak.

Here -nya means his/her/their in the sense of possession.

• nada = tone / pitch
• nadanya = his/her tone or the tone
• suara = voice
• suaranya = his/her voice

In this sentence, -nya most naturally means his/her, depending on context.

They are related, but not the same.

• suara = voice, the actual sound someone produces
• nada = tone, pitch, or the musical quality of that sound

So:

• suaranya serak = his/her voice is hoarse
• nadanya sumbang = his/her tone is off-key / discordant

The sentence is saying that the person’s tone sounds wrong because their voice is hoarse.

In this sentence, sumbang means something like:

• off-key
• out of tune
• discordant

It is often used when talking about singing or musical pitch.

So nadanya sumbang suggests the person’s tone is not coming out correctly, especially in a musical sense.

Serak means hoarse or raspy.

It is commonly used for a voice that sounds rough, strained, or unclear, often because of illness, shouting, or throat irritation.

So suaranya serak = his/her voice is hoarse.

Malay often does not use a verb meaning to be in simple descriptive sentences.

So instead of saying:

• His tone is off-key
• His voice is hoarse

Malay simply says:

• Nadanya sumbang
• Suaranya serak

This is very normal in Malay.

Kerana means because.

It introduces the reason for something:

• Nadanya sumbang kerana suaranya serak.
• His/her tone is off-key because his/her voice is hoarse.

It connects:

• result: nadanya sumbang
• reason: suaranya serak

Yes, in many everyday situations, sebab can replace kerana.

For example:

• Nadanya sumbang sebab suaranya serak.

This sounds more casual and conversational.

In general:

• kerana = a bit more formal or neutral
• sebab = very common in speech

Mostly yes. The sentence follows a very familiar pattern:

• Nadanya sumbang = subject/topic + description
• kerana = because
• suaranya serak = subject/topic + description

So the structure is basically:

His/her tone [is] off-key because his/her voice [is] hoarse.

The main difference from English is that Malay leaves out is.

Yes, very likely.

Because sumbang is often used for something being off-key, the sentence can strongly suggest singing or speaking in a way that sounds musically wrong.

A natural interpretation is:

• The person sounds off-key because their voice is hoarse.

But depending on context, it could also describe ordinary speech sounding unpleasant or strained.

A rough guide for an English speaker:

• sumbang ≈ soom-bahng
• kerana ≈ kuh-RAH-nuh
• serak ≈ suh-RAK

A few helpful notes:

• e in Malay can sound like a weak uh sound
• r is usually tapped or lightly rolled
• final k can sound clipped or unreleased in many accents

Pronunciation varies a little by region, but these approximations are good for learners.

It can be either, depending on context.

The suffix -nya can mean:

• his/her/their
• sometimes the, when something is already understood

In this sentence, because suaranya also appears, the most natural reading is:

• his/her tone
• his/her voice

So the sentence is most likely talking about one person’s tone and voice.

Sometimes people may understand it, but nadanya sumbang is better here.

Why?

• sumbang fits very naturally with nada because pitch/tone can be off-key
• suara refers to the voice itself, so suaranya serak is the more natural pairing for hoarse

So this sentence uses very natural collocations:

• nada + sumbang
• suara + serak

It is fairly neutral and natural.

• kerana gives it a slightly more careful or standard feel than sebab
• the rest of the sentence is straightforward everyday Malay

So it would work in normal writing and in speech, though in casual conversation many speakers might prefer sebab.