I'm just finishing a project in the Centre for Digital Music (C4DM) that involved creating a couple of new Vamp plugins from machine-learning models for music audio. MERT Vamp Plugin: a feature extractor for MERT audio features Vamp Lossy Encoding Detector: detect whether music audio has previously been encoded via lossy compression A Vamp plugin… Continue reading MERT Vamp Plugin, and a Lossy Encoding Detector
Tag: audio
A new bit of software… and mugs!
A couple of curious projects have recently sprung new releases. Of a sort. Mugs The simpler, and sillier, one first: I've entered the mug trade! Or strictly speaking, our company (hitherto entirely software) has. Either way, you can now buy a mug with two of my drawings of cartoon giraffes playing musical instruments on it.… Continue reading A new bit of software… and mugs!
Performance improvements in Rubber Band Library
Today marks version 3.1 of the audio time-stretching and pitch-shifting library Rubber Band. This release focuses primarily on performance improvements. In version 3.0 we introduced a totally new, higher-quality processing engine, which I'll refer to as the R3 engine. The older one is still included, and I'll call that R2. Although the output of R3… Continue reading Performance improvements in Rubber Band Library
Note on “Explorations in Time-Frequency Analysis” by Patrick Flandrin
Patrick Flandrin is a physicist and signal-processing researcher whose name I first encountered as co-author (with François Auger) of a 1995 IEEE Transactions on Signal Processing paper called "Improving the Readability of Time-Frequency and Time-Scale Representations by the Reassignment Method". This crunchy publication (21 pages, dozens of equations and figures) took a pleasing idea —… Continue reading Note on “Explorations in Time-Frequency Analysis” by Patrick Flandrin
Sonic Visualiser v3.2
Another release of Sonic Visualiser is out. This one, version 3.2, has some significant visible changes, in contrast to version 3.1 which was more behind-the-scenes. The theme of this release could be said to be "oversampling" or "interpolation". Waveform interpolation Ever since the Early Days, the waveform layer in Sonic Visualiser has had one major… Continue reading Sonic Visualiser v3.2
Notes from the Audio Developer Conference
I've spent the last couple of days at the 2017 Audio Developer Conference organised by ROLI. This is a get-together and technical conference for people who work on audio software and software-driven-hardware, in practice mostly people working on music applications. I don't go to many conferences these days, despite working in academia. I don't co-write… Continue reading Notes from the Audio Developer Conference
The Breakfast Post 