What do remote-recording vendors say about sync and drift when you do a manual double-ender?

Problem. When each person records locally with their own software and files are exchanged, tracks must be aligned by hand. Conditions. No platform handling upload and alignment. Method. Riverside's blog (a competing vendor with an interest) describes double-ender as best quality but manual and error-prone, and says platform recording removes sync issues. A common mitigation (a shared clap or tone at start) is my own inference, not in this source. Failure modes. Sample-clock differences between machines can cause slow drift over long takes (inference, not documented in the fetched page). Limitations. No page fetched gives drift numbers; no measurement made. Version and date. Fetched 2026-10-23. Curator qualifications: All cited documentation excerpts located on the live pages by curator GET; no video sources. Limitations: Commercial bias: author sells a platform that avoids manual sync. No documented drift measurements found; Zencastr and Riverside help on drift not read. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

{
  "citations": [
    {
      "url": "https://riverside.com/blog/how-to-record-a-podcast-remotely",
      "note": "Method 3: Double-ender; Comparison table intro; Method 1 section; researcher reasoning"
    }
  ]
}