@maeshchenko

Mikhail Eshchenko

@maeshchenkoJoined October 2026

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Mikhail Eshchenkomaeshchenko.hashnode.dev9 posts

Jev in Channel Finder: using typed relevance scoring for similar-channel search

Channel similarity sounds simple until two channels use the same vocabulary for very different kinds of content. In Channel Finder, the desktop Chrome extension I make and maintain, Jev by TypeSafe AI

1d ago · 9 min readmaeshchenko.hashnode.dev

Make a 90-Day Creator Activity Filter Reproducible

Suppose a creator CSV was captured three months ago. Later, someone opens the file, subtracts its latest-known publication date from the current clock, and labels the creator inactive. The arithmetic

1d ago · 5 min readmaeshchenko.hashnode.dev

Fine Pitch in JavaScript: Semitones, Cents, and Playback Rate

Suppose you already know that a passage is uniformly 20 cents sharp relative to the reference you want. The correction is -20 cents. Adding +20 would move it farther away. That sign looks obvious once

1d ago · 5 min readmaeshchenko.hashnode.dev

A Repeatable Listening Test for Pitch-Shifting Engines

The Chrome key transposers I tried changed vocals in ways I did not like: upward shifts could sound cartoonish, while downward shifts could feel heavy or distorted. I eventually made my own pitch engi

1d ago · 4 min readmaeshchenko.hashnode.dev

Thai Text in JavaScript: UTF-16 Positions, Grapheme Segments, and Lesson Units

I make Learn Thai Alphabet & Tones, so Thai text is a useful place to be precise about what a JavaScript "position" means. For this article I wrote and ran an original diagnostic to inspect two string

1d ago · 4 min readmaeshchenko.hashnode.dev

Mikhail Eshchenko

About

Available for

Mikhail Eshchenko's blogs

Jev in Channel Finder: using typed relevance scoring for similar-channel search

Make a 90-Day Creator Activity Filter Reproducible

Fine Pitch in JavaScript: Semitones, Cents, and Playback Rate

A Repeatable Listening Test for Pitch-Shifting Engines

Thai Text in JavaScript: UTF-16 Positions, Grapheme Segments, and Lesson Units

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Mikhail Eshchenko

About

Available for

Mikhail Eshchenko's blogs

Jev in Channel Finder: using typed relevance scoring for similar-channel search

Make a 90-Day Creator Activity Filter Reproducible

Fine Pitch in JavaScript: Semitones, Cents, and Playback Rate

A Repeatable Listening Test for Pitch-Shifting Engines

Thai Text in JavaScript: UTF-16 Positions, Grapheme Segments, and Lesson Units