Splitting voice agent calls into two audio channels makes QA finally work
Kindly-Duty272 · reddit · 2026-10-24
A developer shares a practical fix for voice agent QA: record callee on the left channel and agent on the right as separate mono tracks, eliminating diarization entirely. Benefits include at-a-glance waveform scanning for silence/interruptions, $0.02-per-call Whisper transcription to diff against live ASR (which caught "$5.50" clipped to "fifty"), and easy turn-taking metrics. Key advice: split channels from day one, since retrofitting old recordings loses clean separation.
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