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Transcribe Audio to Text Like a Developer: From File to Final Text

You've got a two-hour architecture review sitting in your Downloads folder. Last month, mine was a 94-minute mess where three engineers talked over ea…

How to Transcribe Audio to Text: A Practical Workflow for Developers

You've got a 45-minute meeting recording sitting on your desktop. Maybe it's a podcast raw file, or an interview you did for a project. You need it in…

Half-Time vs Double-Time BPM Detection: How We Fixed Spotify's Known Accuracy Gap

Run Blinding Lights by The Weeknd through Essentia's RhythmExtractor2013 . It returns 85.4 BPM. The track is famously 171 BPM — one of the most-played…

Build a Voice Assistant with Python and Whisper

Build a Voice Assistant with Python and Whisper Imagine hearing your computer whisper back a response to your question, not through a robotic script, …

Computer Science Off Course - Programming as Theory Building

FFmpeg dynaudnorm Filter: Dynamic Audio Normalization Guide

Originally published at ffmpeg-micro.com You're editing together clips from three different recording sessions, and every cut brings a jarring volume …

Keygen Church - Oscuro Domine

Emotions on a cloned voice: a 25 MB graft, a steering vector, and a lot of dead ends

Part of qwen3-tts — a pure C inference engine for Qwen3-TTS. TL;DR Qwen3-TTS ships 9 neutral preset speakers. No emotion control, and cloning a voice …

Stegachirp: Hide Messages in Audio Files Using Pure Python (No NumPy, No SciPy)

Hide a Message in a WAV File With Pure Python (No NumPy, No FFT) I built stegachirp because I wanted to send a short secret message inside an audio fi…

Tagging Environmental Sounds with YAMNet TFLite: An ESC-50 Evaluation over 2,000 Clips

Hello, everyone. Today is Tanabata in Japan. Events like Tanabata, summer dance festivals, and Christmas all seem to have their own sound images. They…

Classifying Environmental Sounds with CLAP and ONNX Runtime: A 1-NN Evaluation on ESC-50

Hello, everyone. When people hear an animal call or keyboard typing, they can infer something about the source and setting. If we turn those sounds in…

Detecting Speaker Changes with Pyannote Segmentation 3.0 and ONNX Runtime

Hello, everyone. When listening to a conversation, we naturally keep track of who is speaking. A program has a harder job: beyond finding speech, it m…

Extracting Speech Segments with Silero VAD and ONNX Runtime

Hello, everyone. Have you ever wanted to keep only the parts of a recording where someone is speaking? Finding silence before transcription can reduce…

Voice cloning models, measured across five languages

I benchmarked local voice-cloning models across English, German, Modern Standard Arabic, Spanish, and Mandarin Chinese. Models: OmniVoice int8 Chatter…

FM-синтез звука в браузере. Часть 1

Рассмотрим возможности браузеров по синтезу звука. Разберём основы и в качестве практического применения сделаем эмулятор синтезатора Yamaha DX7. Чита…

I built a VAD that beats Silero, Pyannote, and WebRTC on noisy audio — here's how

I built NOVA-VAD — a lightweight, explainable Voice Activity Detector that beats every major open source VAD on real-world noisy audio. GitHub:( https…

macOS Still Has No Volume Mixer, So I Built One

macOS has never had a proper per-app volume mixer. On Windows, this is basic. You can lower Spotify, mute a browser, keep a meeting app loud, and leav…

Qtractor Usage Bible - Volume 1

QTRACTOR BIBLE Volume 1 — Foundations PART I — QTRACTOR CONCEPTS & WORKFLOW MODEL Chapter 1 — What Qtractor Is Quick Start Qtractor is a non-destr…

Qtractor Usage Bible - Summary

Qtractor is a lightweight Linux DAW (Digital Audio Workstation) for audio and MIDI recording. Organization This bible series is organized in a workflo…

One mp3, twelve panels.

Phase two of Reel shipped on Monday. A reader page can now play a voiced narration of the comic while the panels turn. The piece I want to write down …

Qtractor Complete Guide

Complete First-Time Setup Guide for Qtractor on Ubuntu 26.04 install and prepare the system verify audio works configure PipeWire/JACK configure Qtrac…

Недостающее звено при обработке медиа на Go

Большинство медиа-библиотек для Go рано или поздно упираются в одну и ту же проблему. У них нет собственного декодера. Вместо этого они полагаются на …

Clean Audio Before Whisper: How Noise Removal Improves Transcription Accuracy (With Code)

Whisper is remarkably robust. But "robust" doesn't mean "immune to noise." If you've ever run a meeting recording through Whisper and gotten back garb…

Server-Side WebRTC Noise Reduction with Pion, FFmpeg, and RNN Models

This is a sanitized engineering note about server-side audio noise reduction for WebRTC calls. Source article: https://www.lodan.me/posts/server-side-…

Chapter-marker survival across the EPUB to multi-voice audio pipeline

A chapter is the smallest unit a listener actually navigates. They open the audiobook in the middle of Chapter 7, leave it open on the dishes, come ba…

Spotify now lets you stream narrated magazine articles, too

Spotify is adding narrated magazine articles to its app as it expands beyond music into audiobooks, podcasts, AI audio, and more.

I replaced a $200/month audio processing server with 40 lines of browser JavaScript

Last year I was paying $200/month for an EC2 instance that did one thing: accept audio file uploads, run FFmpeg, and return the converted file. FLAC t…

Studio Violin: Building a Physically Modelled Bowed-String Instrument in Instrudio

Studio Violin: Building a Physically Modelled Bowed-String Instrument in Instrudio I’m building Instrudio , a browser-based virtual instrument ecosyst…

Migrating from Spotify Audio Features: a Field-by-Field Threshold Guide

TL;DR: Spotify killed /audio-features on 2024-11-27. FreqBlog Music API offers a drop-in at api.freqblog.com/v1/audio-features/{id} — same path, same …

How to Extract Audio from Video with FFmpeg (MP3, WAV, and API Guide)

Originally published at ffmpeg-micro.com You recorded a webinar, a YouTube video, or a product demo. Now you need the audio track as a standalone file…