https://unknownportal.com/videos/watch/8d638c99-789d-4bd7-a7a0-5b7a5be21574 0:08 - Collapse initiation sound reaches the camera microphone. Much clearer audio than in the extended raw footage obtained by NIST from CNN on "CNN NIST Dub #21" tape, despite this version is missing the audio track on the right channel, as usual the case with the NIST full-length WTC video releases. Camera: Dr. Mark Heath Northwest view on WTC POV= West Street and Murray Street Source of the segment: 911datasets.org NIST FOIA #09-42, Interim Response ("Release") #25, DVD Video: "42A0094 - G25D4" ("WNBC NIST Dub #7" tape), Cut-in time: 07mn:26s.012ms / Cut-out time: 08mn:05s.051ms. DVD video deinterlaced and upscaled from 720 x 480 px to 1440 x 1080, by resizing from the 3:2 to the 4:3 display aspect ratio at same time. Remaining left audio copied in to the blank right channel. Low loudness level hard limited to +14 dB. Tue, 10 Nov 2026 00:42:41 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://unknownportal.com https://unknownportal.com/lazy-static/avatars/8e1b22ce-9e45-498c-bf3b-05cc77b487a2.gif https://unknownportal.com/videos/watch/8d638c99-789d-4bd7-a7a0-5b7a5be21574 All rights reserved, unless otherwise specified in the terms specified at https://unknownportal.com/about and potential licenses granted by each content's rightholder.