diff --git a/docs/research/audio-length-ceiling-2026-10-01.md b/docs/research/audio-length-ceiling-2026-10-01.md
index e9ed2ba..d03df5a 100644
--- a/docs/research/audio-length-ceiling-2026-10-01.md
+++ b/docs/research/audio-length-ceiling-2026-10-01.md
@@ -29,7 +29,7 @@ ingress configuration, which lives in `infra`. "About 10 MB" is an inference.
 ## Method
 
 - **Audio.** No known-good Swedish recording is available that is safe to use: the only real
-  one (`IMG_1233.wav`) is the private `/bygge` recording (#31 custody still open) and was
+  one is a private recording (#31 custody still open) and was
   deliberately not touched. Instead: macOS `say -v Alva` (Swedish) on iguana, a 1,171-char
   five-paragraph meeting script → 82.5 s of 16 kHz mono PCM WAV (`ffmpeg -ar 16000 -ac 1`).
   Concatenated ×4, ×8, ×16, ×32, ×44, ×66 with Python `wave` (the issue's own recipe).