Learn Farsi: این استودیو یکی از بهترین مکان‌ها برای میکس صوتی است. - This studio is one of the best places for the audio mix.

Unlike normal adjectives that follow the noun and require an Ezafe (like مکان‌های خوب), superlative adjectives (those ending in -ترین) come before the noun and do not take an Ezafe. You just say بهترین مکان‌ها.

Farsi doesn't allow words to start with two consonants like the "st" in studio. How is استودیو pronounced?

To break up the initial consonant cluster from the borrowed English word, Farsi adds a vowel at the very beginning. It is pronounced "ostudio" or "estudio".

Why use صوتی here instead of the common word for sound, صدا?

صدا is the everyday noun for "sound" or "voice." Here, we need a technical adjective for "audio." Adding the relative suffix -ی to the Arabic root صوت (sowt, meaning sound) creates the formal adjective صوتی (sowti).

What is the grammar rule for using یکی از (one of) with a noun?

Just like in English, یکی از requires the noun that follows it to be plural. Even though Farsi sometimes uses singular nouns after numbers or in generic contexts, after یکی از you must use the plural marker, which is why we see مکان‌ها (places) instead of just مکان.