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Persune

@gumball2415.github.io

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Persune

@gumball2415.github.io

measuring MDFs of my interface once more.

MDF 96k tests for either headphone jack or OUT1/OUT2, with or without -18db of padding, and matching input levels, or minimizing saturation. all permutations.

more info in readme.txt

download: mega.nz/file/L2xgVKZ...

MDFourier graph showing the overall frequency response of my UMC202HD. the averaged line is within +-1.5dBFS.

my Hosa RCA cables, supplemented with metal chassis RCA to 6.35mm headphone jack adapters.

a top view of my UMC202HD in the OUT1/2 loopback configuration. my Hosa RCA cables, supplemented with the RCA to 6.35mm jack adapters connect OUT1 and OUT2 to IN 1 and IN 2 respectively. also connected is the USB type B cable, and my IEMs for monitoring audio. the taped on the top of the interface reads "MIC Impedance 3K Ohms", and "INST Impedance 1M Ohms".

a front view of my UMC202HD in the headphone loopback configuration. my Hosa mono 6.35mm jack to stereo 3.5mm jack, supplemented by a 3.5mm to 6.35mm stereo adapter, connects the PHONES jack to IN 1 and IN 2. also connected is my IEMs for monitoring audio.

November 20, 2025 at 11:49 AM

Persune

@gumball2415.github.io

the mind electric vocal cover proof-of-concept
it's hard to compete with a vocoder in terms of pitch accuracy...

varisped my voice because i can't sing baritone anymore

November 7, 2025 at 4:28 PM

Persune

@gumball2415.github.io

so retro, i'm sure it's been done to death but it's still pretty neat to transcode to composite and back in realtime

October 18, 2025 at 3:55 PM

Persune

@gumball2415.github.io

followed a tutorial which was recommended to me
now i can make any kick i want

(909 snare for contrast)

October 15, 2025 at 3:31 AM

Persune

@gumball2415.github.io

made a (barely functional proof-of-concept) WASM+JS shell for Pally, a NES palette generator

This uses the fresh Rust port, so some features may be borked or not present.

gumball2415.github.io/src/pally/pally-web.html

#nes #nesdev #2C02

August 2, 2025 at 7:59 AM

Persune

@gumball2415.github.io

rust wasm is something

what i expected vs what i got

August 2, 2025 at 6:04 AM

Persune

@gumball2415.github.io

<:3 )~

July 26, 2025 at 6:12 AM

Persune

@gumball2415.github.io

it's alive! Pally in Rust doing the bare minimum

NES color palette generator based on encoding and decoding the PPU's (emulated) composite output
github.com/Gumball2415/...

$Code of the main execution flow in Rust programming language. it reads: /// Runs the CLI pub fn run_cli() -> Result<(), Box<dyn Error>> { // parse arguments // Get default black/white points? // construct encoder and decoder let pally = PallyGenConfig::new(); // generate colors let palette = generate_colors(&pally); let path: &Path = Path::new("test.pal"); // save colors save_colors(path, &palette) }$ A screenshot of Mesen2's NES video setting dialog window. In the background of the dialog window is the full_palette test ROM, which shows all the possible colors of the NES.

The test palette from Pally is loaded in Mesen2!

A screenshot of Mesen2's NES video setting dialog window. In the background of the dialog window is the full_palette test ROM, which shows all the possible colors of the NES.

The test palette from Pally is loaded in Mesen2!

July 25, 2025 at 11:53 AM

Persune

@gumball2415.github.io

what if i did it again for the third time

$A screenshot of a Windows command line interface output. it reads: C:\Github\Gumball2415\pally>cargo run Compiling nes_ppu_cvbs v0.2.0 (C:\Github\Gumball2415\pally\nes_ppu_cvbs) Compiling pally v0.1.0 (C:\Github\Gumball2415\pally\pally) Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.90s Running `target\debug\pally.exe` black is 0.312! the samples generated from color $01 000: [0.228, 0.228, 0.228, 0.228, 0.228, 0.616, 0.616, 0.616, 0.616, 0.616, 0.616, 0.228]$

July 22, 2025 at 10:26 AM

Persune

@gumball2415.github.io

otoh, i wonder if i could do DSP convolution using iterator adapters...

July 14, 2025 at 11:22 AM

Persune

@gumball2415.github.io

*mashes X harder*

July 14, 2025 at 11:22 AM

Persune

@gumball2415.github.io

# 2025-07-12 12:35

- The Book: 12.3
- Rustlings: 94/94 (done)
- RBE: 24 (done)

yipee, apparently i already finished Rustlings!
now i can focus on finishing The Book

The success screen at the end of Rustlings. A big ASCII art depiction of Ferris is shown with a speech bubble saying, "You made it to the Fe-nish line!". The latter text mentions about user feedback regarding the Rustlings program, as follows:

We hope you enjoyed learning about the various aspects of Rust!
If you noticed any issues, don't hesitate to report them on GitHub.
You can also contribute your own exercises to help the greater community!

Before reporting an issue or contributing, please read our guidelines:
https://github.com/rust-lang/rustlings/blob/main/CONTRIBUTING.md

July 12, 2025 at 4:41 AM

Persune

@gumball2415.github.io

# 2025-07-11 12:39

- The Book: 11.3
- Rustlings: 94/94
- RBE: 24 (done)

yipee, finished Rust By Example! now i can complain about it

Rust By Example feels like refresher for those who already know Rust
like, this isn't a good introduction lmao

A list of sections of the first chapter of the Rust By Example book. They are listed as follows:
1. Hello World
1.1. Comments
1.2. Formatted print
1.2.1. Debug
1.2.2. Display
1.2.2.1. Testcase: List
1.2.3. Formatting

July 11, 2025 at 4:45 AM

Persune

@gumball2415.github.io

# 2025-07-10 13:36

- The Book: 11.3
- Rustlings: 92/94
- RBE: 23

sometimes i think The Book is pushing me to be a smartass.

$A Rust programming language question which asks the following: Consider a program with the following unit test: ``` #[test] fn test_the_logger() { /* ... */} #[test] fn test_the_database() { /* ... */} #[test] fn test_logger_and_database() { /* ... */} ``` what is the shortest sring you can pass to `cargo test <the_string> such that only `test_the_logger` and `test_the_database` are executed? My answer was `test_the_`, while the correct answer was `h`.$

July 10, 2025 at 5:24 AM

Persune

@gumball2415.github.io

just nesdev wiki things

July 7, 2025 at 2:21 PM

Persune

@gumball2415.github.io

i have been spending the last two weeks tweaking this script nonstop apparently

one day i'll make a UI for it...
github.com/Gumball2415/...

July 2, 2025 at 11:35 AM

Persune

@gumball2415.github.io

a tiny NES composite preview script; generates individual frames
animations stitched together with ffmpeg

art by @provolonecinco.com from project SHVTERA
https://github.com/Gumball2415/pencil-case/tree/main/ppu_cvbs_previewer

#nes #nesdev #2c02

June 18, 2025 at 3:59 PM

Persune

@gumball2415.github.io

i guess having an autocorrect that spans an entire paragraph might be neat but i'm concerned about this convenience building habits that companies can profit over and eventually fuck us up with. ew.

i'd rather build muscle memory with my hands than simply glancing at code that i didn't type