Reverse Audio at Scale: A Debugging Playbook for Engineers Who Hate Surprise Sibilance
Picture the bug report: a track plays fine in the mix bus, but the moment it runs backwards, the vocalist sounds like a kettle whistle. The waveform…
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Fixing Low USB-C Audio on Fedora Linux: My Battle with the Razer Leviathan
TL;DR: If you have a Razer Leviathan connected via USB-C on Linux and the volume is incredibly quiet even at 100%, PipeWire is likely crushing your…
Supplier Invoice Speech-to-Text: EU Startup Validation Beyond Per-Minute Pricing
Short answer: the cheapest speech-to-text API for an EU startup is the candidate that passes your invoice-field accuracy gate at the lowest normaliz…
Автоухо ставил «поломку» в 71% случаев. Я грешил на дешёвые телефоны, но проблемой оказалась тишина
Сервис диагностики двигателей автомобилей по звуку ставил «поломку» в 71% случаев. Я грешил на дешёвые телефоны, но проблемой оказалась тишина Если…
How I record system audio on macOS without a virtual driver
Recording your own microphone on a Mac is a solved problem. Recording the other person — the voice coming out of your speakers — is where macOS quie…
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…
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 o…
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. Re…
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…
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…
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-play…
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…
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 volum…
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 voic…
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…
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. Th…
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…
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…
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 redu…
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 Chatt…
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. Чи…
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:( htt…
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 le…
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-des…
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 workf…
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 dow…
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 Qtr…