O ouvinte faz parte da audiência.

In Portuguese, fazer parte de is the normal expression for to be part of.

So:

• O ouvinte faz parte da audiência. = The listener is part of the audience.

You can sometimes see ser parte de, but fazer parte de is much more natural in everyday Portuguese.

A few more examples:

• Ela faz parte da equipe. = She is part of the team.
• Isso faz parte do plano. = That is part of the plan.

So it is best to learn fazer parte de as a fixed expression.

Because Portuguese normally contracts de + a into da.

Here is the breakdown:

• de = of / from
• a audiência = the audience
• de + a audiência → da audiência

This kind of contraction is very common:

• de + o = do
• de + a = da
• de + os = dos
• de + as = das

Since fazer parte normally takes de, you get:

• fazer parte de algo = to be part of something
• fazer parte da audiência = to be part of the audience

Ouvinte means listener.

It comes from the verb ouvir, which means to hear or to listen to depending on context.

Examples:

• ouvir música = to listen to music
• ouvir um barulho = to hear a noise

So ouvinte is a person who listens, especially in contexts like radio, podcasts, lectures, or speeches.

The noun ouvinte itself can refer to either a man or a woman. It is a common-gender noun, so the article changes, not the noun.

• o ouvinte = the male listener / the listener
• a ouvinte = the female listener

So in your sentence, o shows masculine or generic usage, but ouvinte does not change form.

This is similar to other Portuguese nouns like:

• o estudante / a estudante
• o cliente / a cliente

Yes. Portuguese uses definite articles more often than English does.

In a sentence like O ouvinte faz parte da audiência, the singular with the article can be used generically, meaning the listener as a type of person or a listener in general.

So this sentence can sound like a general statement, not necessarily about one specific listener.

Compare:

• O ouvinte faz parte da audiência. = The listener is part of the audience. / A listener is part of the audience.
• Um ouvinte faz parte da audiência. = A listener is part of the audience.
  This is possible too, but it sounds a bit different and less general.

Because Portuguese often uses the singular to talk about something in a general or class-level way.

Also, audiência is often a collective noun, like audience in English. It refers to a group as a whole, even though the word itself is singular.

So:

• o ouvinte = the listener / a listener in a general sense
• a audiência = the audience as a group

This is completely natural.

Here, audiência means audience: the group of people listening or watching.

But audiência can also have other meanings depending on context, such as:

• TV/radio ratings
• a legal hearing
• an audience with someone important

Examples:

• O programa teve muita audiência. = The program got high ratings / a large audience.
• A audiência foi adiada. = The hearing was postponed.

In your sentence, the context clearly points to audience as a group of listeners.

A simple pronunciation guide for Brazilian Portuguese:

• ouvinte ≈ oh-VEEN-chee
• audiência ≈ ow-djee-EN-see-a

A few helpful points:

• ou often sounds like oh
• vin in ouvinte is stressed: ou-VIN-te
• in many Brazilian accents, final te sounds like chee
• the ê in audiência shows the stressed syllable: audi-ÊN-cia

You do not need perfect IPA to say it well, but the stress matters:

• ouVINte
• audiÊncia

It does not literally mean is. Literally, faz means does or makes, because it comes from the verb fazer.

But in the expression fazer parte de, the whole phrase means to be part of.

So:

• faz = does/makes
• parte = part
• faz parte de = is part of

This is a good example of why translating word by word does not always work well.

Yes, but the original order is the most natural and neutral:

• O ouvinte faz parte da audiência.

You could rearrange it for emphasis, but it would sound more marked or literary, for example:

• Da audiência, o ouvinte faz parte.

That is grammatically possible, but not the normal everyday choice.

For learners, the best model is:

• subject + verb expression + complement
• O ouvinte faz parte da audiência.

Yes, it is understandable, but faz parte da audiência is the more idiomatic and usual phrasing.

A rough difference is:

• faz parte de = standard, natural expression for belonging to a whole
• é parte de = possible, but often less natural in this kind of sentence

So if you want the most natural Brazilian Portuguese, use:

• O ouvinte faz parte da audiência.