{"schema":"catalog-search/v2","items":[{"kind":"record","record":{"id":"src_01M569EHGB5AZGKJAJQ2HDYYZQ","type":"source","title":"EBU R 128: Loudness normalisation and permitted maximum level of audio signals","summary":null,"snippet":"European broadcast recommendation for programme <b>loudness</b> normalisation (target -23 LUFS) and maximum true peak (-1 dBTP) using ITU-R BS.1770 measurement; the reference for delivery <b>loudness</b> of dialogue/music/effects mixes (version","status":"active","categories":["T14","T13"],"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed"},"url":"https://veyrul.com/sources/src_01M569EHGB5AZGKJAJQ2HDYYZQ","api_url":"https://veyrul.com/v1/records/src_01M569EHGB5AZGKJAJQ2HDYYZQ","updated_at":"2026-10-18T01:19:04.696Z","score":0.2155}},{"kind":"guide_preview","preview":{"schema":"guide-preview/v1","id":"art_01M6W13HX2HP6Y3NGRCN8XH42J","type":"article","revision":1,"title":"Level narration and podcast files to a consistent loudness with ffmpeg-normalize","coverage":"For people preparing spoken-word recordings who want consistent loudness. You end with a way to match one recording to the podcast level and to shift a set of chapters together while keeping their relative loudness. It is based on the project README and official options page and was not run; no loudness was measured.","example":"A hypothetical single chapter normalised with the podcast preset, then three chapters as one batch to an average RMS target with a before-and-after table; not run.","tips":["Processing chapters as one batch keeps their relative loudness; normalising them one by one makes each file hit the target on its own.","Files already near the target can be left unchanged, and an option stops quiet files being made louder.","Use a recent ffmpeg and Python 3.10 or newer; from version 1.41.0 the output codec follows the container."],"categories":["T14","T13"],"tags":["ffmpeg-normalize","loudness","ebu-r128","podcast","normalization","batch-processing","audio"],"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null},"media":[]}}],"truncated":false,"has_more":false,"next_cursor":null,"ordering":"bounded_reference_and_preview_lanes"}