Many years ago, I decided to open AcoustID to fingerprint submissions without metadata. The idea was to have a pre-populated fingerprint database, even if we don’t have the metadata yet. However, this turned out not to be useful and it creates quite a bloat. Out of approximately 70 million tracks in the AcoustID database, only 20 million have associated MusicBrainz recording. A little more tracks have user-submitted text metadata, but the majority of fingerprints in the database is still unidentified.

We’ve released a new version of the mbdata package. It includes support for the latest MusicBrainz database schema and also a new command for automatically initializing a database mirror from scratch. Setting up a new database mirror can be now as easy as: pipx install "mbdata[replication]" curl https://raw.githubusercontent.com/acoustid/mbdata/main/mbslave.conf.default -o mbslave.conf vim mbslave.conf mbslave init --create-user --create-database mbslave sync In addition to the Python package, we also have a container image with the mbslave tool at ghcr.

We’ve released a new version of Chromaprint with support for Apple M1 CPUs. There are no changes to the source code. This a binary-only release. You can download it at GitHub .

Daily JSON data exports are now available on https://data.acoustid.org/. They went down after the major problems on March 3rd. Monthly and yearly aggregates, including full data exports will be available later in Q2 2021. I’ll also try to make sure that we have readily usable tools for importing these data exports into a database.

On March 2, 2021, we had a large incident that led to the entire acoustid.org infrastructure going down. This will be the first of at least a few posts to explain what happened, how we got to this situation and what will happen in the future? I’ll not sugar-coat it, the most direct cause of the problem was the modern equivalent of the classic rm -rf / as root. With the classic one, you can only delete data from one server.

We’ve released a new version of Chromaprint with a few small changes: Added support for fpcalc -raw -signed, which helps with easier PostgreSQL integration Added support for using libavresample instead of libswresample Fixed possible crash in chromaprint_decode_fingerprint Fixed unit tests on big endian CPUs You can download it at GitHub .

A new version of Chromaprint has been released. This is a fairly big release I originally intended to call 2.0, but one key feature I was planning to include is not yet finished, so I decided to go with 1.4 instead. So what’s new? The biggest feature is that all components of audio fingerprinting process now work in a streaming fashion and can provide partial results at any time. That means that it’s now possible to feed a continuous audio stream to the process and get back partial fingerprints.

A new version of Chromaprint has been released. This is a very small bug fix release fixing fpcalc crash on a corrupt file. Changes since version 1.3.1: Fixed crash on an invalid audio file that FFmpeg could not decode. Fixed build on Ubuntu 14.04 with libav. Download: Source code tarball (525 KB) Static binaries for the fpcalc tool Windows, 32-bit (1 MB) Windows, 64-bit (1 MB) Mac OS X, 32-bit, 10.

A new version of Chromaprint has been released. Changes since version 1.3: Fixed fpcalc -length to actually restrict fingerprints the requested length. Fixed SONAME version for the shared library. Download: Source code tarball (525 KB) Static binaries for the fpcalc tool Windows, 32-bit (1 MB) Windows, 64-bit (1 MB) Mac OS X, 32-bit, 10.4+ (964 KB) Mac OS X, 64-bit, 10.4+ (944 KB) Linux, 32-bit (1 MB) Linux, 64-bit (1 MB)

A new version of Chromaprint has been released. This is another small release, there are no changes to the core functionality. Changes since version 1.2: The binary packages have been built with FFmpeg 2.8.6, adding support for DSF files You can use use fpcalc -length 0 to get the full fingerprint New function chromaprint_get_fingerprint_hash for calculating SimHash from the fingerprint data Added info section to the fpcalc executable on Mac OS X Generate .