I am using Fedora. Why doesn’t acoustic fingerprinting work?

Acoustic fingerprinting in Picard uses a tool called fpcalc, which is not available in Fedora. You can get it by installing the chromaprint-toolspackage from the RPM Fusion repository. This functionality is not contained in the main Fedora picard package because it requires the ffmpeg package which cannot be distributed by Fedora. After enabling the “rpmfusion-free” RPM Fusion repository, install the package using (as root):

yum install chromaprint-tools