Audio formats and quality for music recognition
Which audio and video formats AudD accepts, the 10 MB standard-endpoint cap, and practical guidance on clip length, sample rate, channels, and compression for reliable matches.
Controlling enterprise endpoint cost
How the AudD enterprise endpoint bills per 12 seconds of audio, and how limit, every, skip, and skip_first_seconds trade cost against completeness.
From match to decision: designing allow, block, and review policies
AudD reports which recordings matched; your platform decides what happens next. The policy inputs an AudD result gives you, how to compute matched seconds and the matched share of an upload from enterprise results, a worked decision table with code, and how to handle appeals, logging, repeat uploaders, and regional rules.
Interpreting the recognition score
Every AudD match carries a confidence score. How to read it and how to set application-specific thresholds for auto-accept, blocking, and human review.
Public database vs your custom catalog
When AudD recognition matches against the public 160-million-song database versus a private custom catalog you upload, and how to tell the two apart in a response.
Retries: what's safe to retry and what consumes a request
Which AudD API failures are safe to retry, which consume a request, and how to configure the SDK's retry budget without double-billing or duplicating catalog entries.
Standard, enterprise, or streams: how to choose
Pick the right AudD recognition surface for your input: standard for a short clip, enterprise for long files, streams for continuous live audio.
The song_link (lis.tn) universal music link
Every AudD match includes a song_link on the lis.tn domain; how its ?thumb and ?provider conventions and the SDK helpers let you build cover-art and 'open in your service' UIs without requesting provider metadata.
Webhook callbacks vs longpoll for stream results
Choose how to receive AudD stream recognition events: webhook callbacks when you can host a public HTTPS endpoint, longpoll when you can't.
What music recognition matches, and what it doesn't
AudD identifies recordings, not songs. A case-by-case table of what to expect for re-uploads, noisy captures, remasters, live versions, covers, samples, sped-up audio, AI soundalikes, DJ mixes, and unreleased music, plus how to build a test set that measures it on your own audio.