What is Double-Ender?
A double-ender is a remote recording method where every participant records their own audio locally and the separate files are synced afterwards, instead of recording the call itself.
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The conversation still happens over a call so people can hear each other, but that call audio is only a reference. Each person's own microphone writes a clean local file, so no one's voice is degraded by compression or a dropout on the connection. Modern recording platforms automate this by capturing locally in the browser and uploading afterwards.
This is the difference between a remote interview that sounds like a studio and one that sounds like a video call. It also protects you from the failure that cannot be fixed in the edit: if the connection drops mid-answer, the local tracks still contain both halves of the sentence.
Make syncing easy by having everyone clap once at the start, which gives you a sharp transient to line the waveforms up against. Ask guests to record to a wired microphone rather than Bluetooth, confirm their file uploaded before you let them leave, and keep the call recording as a backup reference track.
Where Double-Ender shows up
You will meet Double-Ender most often while comparing podcast recording software - Riverside, Squadcast, Zencastr, and Cleanfeed all deal with it, though not in the same way or at the same price.
Related terms: Multitrack Recording and Pop Filter.