DAC - Ok, the "other way around" ... 
Then you might have a look here
https://www.instructables.com/How-to-Make-and-Test-a-Better-DAC-With-ESP32/
and here
https://dronebotworkshop.com/esp32-dac/
and of course(!) here
https://github.com/pschatzmann/arduino-audio-tools/discussions/categories/show-and-tell
GET SURPRISED WITH THIS FACT!!11!!!!!1!1
I don't have an I2S module.
I'm sorry if my responses are late but I live in america continent so I'm on the other side of the earth
We could help you better if we knew what you want to do.
Leo..
I want to make an audio processing unit powered by ESP32 that an Arduino UNO can command
Firstly, learn the data sheet and the features of the ESP 32. Once you have mastered the features and know what it can do, develop an Idea yourself, (create a wi-fi module) and start building the project. If you're a beginner, use the Arduino Ide. Once you are familiar with the IDE, start using the Linux OS and boot the program using Linux terminals like a real Engineer. All the best @spacesailor123643 . Create exciting projects and post one soon on the forum! 
Yo bud, i have an %undefined% amount of viruses in my computer and it still runs like nothing somehow, I don't think changing the small cube that holds up everything would not make something in my computer, altho is running on Windows, I feel like Linux is way too risky
to change
Too vague.
Why is it vague
Why is it vague tell me 
Read what he wrote.
Tve problem is that not every maker is rich enough to make every project accurately or correctly enough
So I chose to make an audio processing unit powered by ESP32
Not by... an example: I2S amplifier
What in the collapsing universe does this have to do with anything written here? You're crying "victim!" to nothing. Get a grip.
Too vague.
I mean that I don't have enough money or resources to get any material required successfully
why is it vague 