Multi-Voice Audiobooks: The Character Attribution Problem
Turning a novel into a multi-voice audiobook sounds like a TTS problem. It is mostly a parsing problem, and the parsing is harder than the synthesis. …
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Going Below Android's Volume Floor: DynamicsProcessing, LoudnessEnhancer, and Reproducible F-Droid Builds
Android's volume slider has a floor, and on a lot of devices that floor is louder than it should be. The first step above mute is a fixed fraction of …
Can YAMNet Detect Unseen Sudden Sounds in Real Time? A 48-Stream Evaluation
Hello, everyone. There are many situations where we may want to monitor sounds that happen without warning, such as breaking glass or a car horn. Regi…
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, …
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…
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…
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…
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…
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…
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…
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…
The Best Resources for Audio Stem Separation in Python (2026)
Audio source separation has gone from a niche research problem to something you can do in a few lines of Python. The tooling has improved dramatically…