El oyente escucha al copresentador.

Because Spanish uses the personal a before a specific human direct object.

Here, el copresentador is the person being listened to, so Spanish adds a:

• escucha al copresentador = listens to the co-host

Also, a + el = al, so:

• a el copresentador → al copresentador

This contraction is mandatory with el.

The personal a is the preposition a used before a person (or sometimes a pet/personified being) when that person is the direct object of the verb.

Compare:

• Veo el coche. = I see the car.
• Veo al copresentador. = I see the co-host.

In your sentence:

• El oyente = the subject, the one doing the action
• escucha = listens
• al copresentador = the direct object, the person receiving the action

English does not usually mark this, so it often feels strange at first.

Because escuchar works differently from English to listen.

In English, we say:

• listen to someone

But in Spanish, escuchar normally takes a direct object:

• escuchar a alguien = to listen to someone
• escuchar música = to listen to music

So the a here is not the same as the English to. It is there because of the personal a, not because escuchar requires a preposition in the same way English listen does.

Escucha is the third-person singular present tense of escuchar.

Full present tense:

• yo escucho = I listen
• tú escuchas = you listen
• él/ella/usted escucha = he/she/you listen(s)

So El oyente escucha... means:

• The listener listens...
• depending on context, it could also be is listening...

Spanish present tense can cover both a general present and a current action, depending on context.

El is the masculine singular definite article, meaning the.

So:

• el oyente = the listener

Spanish usually uses articles more often than English does. In a simple sentence like this, el tells you we are talking about a specific listener, or about the listener as a role in context.

No. Oyente is a common-gender noun, which means the noun form stays the same, but the article changes:

• el oyente = the male listener
• la oyente = the female listener

So in your sentence, el oyente tells you the listener is masculine, or that masculine grammar is being used.

Copresentador means co-host or co-presenter.

It is made up of:

• co- = co-
• presentador = presenter/host

So:

• el copresentador = the male co-host
• la copresentadora = the female co-host

This noun is not common-gender in the same way as oyente; it normally changes form by gender.

Yes, grammatically you could, but it means something slightly different.

• escuchar often suggests actively listening
• oír often means to hear

So:

• El oyente escucha al copresentador. = The listener is listening to the co-host.
• El oyente oye al copresentador. = The listener hears the co-host.

In real use, the distinction is not always absolute, but escuchar is the more natural choice for deliberate listening.

Spanish often uses the definite article where English might or might not, depending on context.

Here:

• El oyente = the listener
• al copresentador = to the co-host / the co-host

This sounds natural if the people are known in context, or if the sentence is talking about roles in a general example.

If you wanted an indefinite meaning, you could say:

• Un oyente escucha a un copresentador. = A listener listens to a co-host.

But that changes the meaning.

A useful approximation is:

• oh-YEN-teh

Breakdown:

• o = like o in lot or a short pure o
• yen = roughly yen
• te = teh

The stress is on the middle syllable:

• o-YEN-te

A rough pronunciation guide:

• escucha = es-KOO-cha
• copresentador = ko-pre-sen-ta-DOR

Notes:

• ch is like English ch in church
• c before o is a hard k sound
• final -dor is stressed in copresentador

So the whole sentence is approximately:

• el oyente es-KOO-cha al ko-pre-sen-ta-DOR

Yes. The Spanish present tense often covers both:

• The listener listens to the co-host
• The listener is listening to the co-host

Without more context, both are possible translations.

If Spanish wants to emphasize the ongoing action, it can also use the progressive:

• El oyente está escuchando al copresentador.

But the simple present escucha is still very natural.

Yes, but the basic order here is the most neutral:

• El oyente escucha al copresentador.

Spanish can change word order for emphasis, style, or context, for example:

• Al copresentador lo escucha el oyente.

That version is much more marked and would not be the normal starting point for a learner.

So for everyday use, the standard pattern is:

• subject + verb + object

Not in normal Spanish. That sounds incomplete or unnatural.

Spanish generally needs articles with common nouns in a sentence like this:

• El oyente escucha al copresentador.

Without the articles, it sounds like note-taking, headlines, or very unnatural learner Spanish.

Yes, when a is followed by the masculine singular article el, it contracts:

• a + el = al

Examples:

• Voy al parque.
• Escucha al copresentador.

But this does not happen with la, los, or las:

• a la presentadora
• a los oyentes
• a las copresentadoras

Also, if El is part of a proper name, you usually do not contract it:

• a El Escorial → not al Escorial in that case when El belongs to the name

But with a normal article, like here, the contraction is required.