#audio-processing articles

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

maeshchenko.hashnode.dev

Mikhail Eshchenko3d ago · 5 min read

How I measured singer identity after pitch shifting

I built the Key Changer Engine because I wanted a desktop Chrome transposer that sounded acceptable to my own ears in both directions. Upward vocals could sound too cartoonish to me, while downward sh

maeshchenko.hashnode.dev

roseman gianfranco5d ago · 3 min read

How to evaluate a background noise remover for tutorial voiceovers

For a technical tutorial, the important audio details are often small: the last syllable of a package name, a quiet explanation between commands, or a short pause while a result appears on screen. A u

rosemanai.hashnode.dev

Oleksii HerasymchukOct 18 · 6 min read

What we learned building two-way voice translation for Google Meet

Adding translated captions to a meeting and translating both sides of a spoken conversation create different engineering problems. Captions appear on one person's screen. A spoken reply has to reach t

meetvoice.hashnode.dev

DevDouble2Oct 14 · 4 min read

Local-First Audio Engineering: Building High-Performance Offline Speech-to-Text on Apple Silicon and NVIDIA

When we first launched our browser-based transcription service, our infrastructure looked like every typical modern AI architecture: a frontend web app, a Cloudflare edge routing layer, a task queue,

precision.hashnode.dev

Aditya SinghSep 13 · 7 min read

I Tried to Glue MP3s Together and FFmpeg Humbled Me

I have been working on my project where I added a feature for an audio podcast. I had multiple conversation objects instead of a long string. I needed to stitch them together in such a way that it fee

adi-read-write.hashnode.dev

Ace Data CloudAug 7 · 4 min read

A Practical Guide to Audio Transcription with an OpenAI-Compatible API

Turning a recorded interview, product demo, or podcast into usable text should be a small integration task—not a new media pipeline. This guide shows how to send an audio file to an OpenAI-compatible

acedatacloud.hashnode.dev

Ace Data CloudAug 7 · 4 min read

How to Transcribe Audio with an OpenAI-Compatible API (Beginner's Guide)

Turning a recorded interview, product demo, or podcast into usable text should be a small integration task—not a new media pipeline. This guide shows how to send an audio file to an OpenAI-compatible

acedatacloud.hashnode.dev

UnMix VocalRemoverAug 6 · 2 min read

Understanding AI Stem Separation: How Modern Audio Separation Works

Music and audio editing have changed significantly with the rise of AI. Tasks that once required professional software and manual editing can now be completed in minutes using modern stem separation t

unmix.hashnode.dev

dishaApr 29 · 5 min read

Beyond Black Boxes: Architecting a Text-Guided Audio Separator

We’ve spent the last decade teaching machines to understand pixels, paragraphs, and polygons. But audio? We still treat it like a sealed container. You get one file. One mix. If you want just the bass

audioseparation.hashnode.dev

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