Podcast glossary

Last checked: 2026-10-25 · Prices in USD, excluding tax · Affiliate disclosure

RSS feed
The XML file listing your episodes; directories and apps read it. Your host generates it.
Download
A request for an episode file. The IAB counts downloads with rules that filter duplicates and bots; "IAB certified" stats follow them.
Upload hours
Total length of audio you add in a billing period. Buzzsprout meters this.
Bandwidth
Data sent to listeners. "Unmetered" usually means subject to fair use.
Dynamic ad insertion (DAI)
Ads stitched into episodes at download time, so old episodes can carry current ads.
Private podcast
A feed limited to authorized listeners, via passwords or per-person feed URLs.
301 redirect
A permanent redirect of your old feed URL to a new host, so subscribers follow you.
Separate-track (multitrack) recording
Each participant recorded on their own track, so you can fix levels and cross-talk per person.
Local recording
The recording happens on each guest's device and uploads afterward, so connection glitches don't affect the audio.
LUFS
Loudness unit. Podcasts often target around −16 LUFS (stereo) for consistent volume across apps.
Text-based editing
Editing audio or video by deleting words in its transcript.
Chapters
Timestamps with titles inside an episode, shown in supporting apps.
Show notes
The episode description text, often with links and timestamps.
Affiliate link
A tracked link that pays a referrer a commission. Ours are marked "Ad".