Revisamos la periodicidad y la grabación.

It can mean either one, depending on context.

Revisamos is the 1st person plural form of revisar and can be:

• present tense: we review / we check
• preterite (simple past): we reviewed / we checked

So Revisamos la periodicidad y la grabación could mean:

• We review the frequency/regularity and the recording
• We reviewed the frequency/regularity and the recording

Spanish often relies on context, time expressions, or the surrounding conversation to make this clear.

Because Spanish usually drops subject pronouns when the verb already makes the subject clear.

In revisamos, the ending -amos already tells you the subject is we (nosotros/nosotras). So saying nosotros revisamos is usually unnecessary unless you want emphasis or contrast.

For example:

• Revisamos la periodicidad y la grabación. = We review / reviewed the periodicity and the recording.
• Nosotros revisamos la periodicidad y ellos revisan el contenido. = We review the periodicity, and they review the content.

In the second sentence, nosotros is used for contrast.

Spanish often uses the definite article more frequently than English does.

Here, both nouns are specific items being discussed:

• la periodicidad
• la grabación

So Spanish naturally includes the article before each noun. In English, you might sometimes say the periodicity and the recording, but in some contexts English might drop an article where Spanish would keep it.

Also, when two nouns are linked by y, Spanish often keeps the article with each noun if both are separate, distinct things.

Because both are feminine nouns:

• la periodicidad
• la grabación

A couple of useful patterns:

1. Nouns ending in -dad are usually feminine.
   Examples:

   • la ciudad
   • la posibilidad
   • la periodicidad

2. Nouns ending in -ción are usually feminine.
   Examples:

   • la información
   • la grabación
   • la conversación

That is why the article is la in both cases.

Periodicidad means something like periodicity, frequency, or regularity, depending on context.

It is a fairly formal or technical word. In everyday speech, Spanish speakers may often prefer simpler alternatives depending on what they mean, such as:

• frecuencia = frequency
• regularidad = regularity
• cada cuánto = how often

So periodicidad is perfectly correct, but it sounds more specialized, administrative, academic, or technical than some other options.

No. Revisar can mean several related things, such as:

• to review
• to check
• to inspect
• to look over
• to go through

So in this sentence, revisamos could suggest more than just studying something again. It might mean we check, we verify, or we examine the periodicity and the recording.

The exact English translation depends on context.

Grabación is pronounced approximately gra-ba-THYON in most of Spain, or gra-ba-SYON in many parts of Latin America.

A few key points:

• The written accent in grabación shows the stress falls on the last syllable:
  gra-ba-CIÓN
• The ción ending is very common in Spanish.
• In most of Spain, ci is pronounced with a th sound: thyón
• In Latin American Spanish, it is usually an s sound: syón

So for Spain Spanish, the ending sounds more like -thyón.

In Spain, a common pronunciation is approximately:

pe-rio-di-thi-DAD

Important details:

• The stress is on the last syllable: -dad
• The ci in periodicidad is usually pronounced thi in most of Spain
• In Latin America, it is usually pronounced si

So:

• Spain: pe-rio-di-thi-DAD
• Latin America: pe-rio-di-si-DAD

Spanish normally uses y for and:

• la periodicidad y la grabación

It changes to e only before words that begin with an i sound, to avoid an awkward repetition of sounds.

For example:

• padre e hijo
• España e Italia

But here, grabación starts with a g sound, not an i sound, so y is correct.

Yes, it can.

Depending on context, grabación may refer to:

• the recording itself
  Example: Escuchamos la grabación. = We listened to the recording.

• the process or act of recording
  Example: La grabación duró dos horas. = The recording lasted two hours.

In your sentence, the most natural interpretation is probably the recording as an item being checked or reviewed, but context would decide that.

Yes, it is completely normal.

This is a standard Spanish sentence structure:

• verb: Revisamos
• object(s): la periodicidad y la grabación

Spanish often allows flexible word order, but this version is very natural and neutral. It sounds like a straightforward statement such as We review/reviewed the periodicity and the recording.