...he [Sibrel] claimed that a voice saying 'Talk' just before Armstrong began speaking to Houston was actually an off-camera CIA handler or some such nonsense. You'd think, if that was the case, that the astronauts would have been wearing earpieces so that such extraneous chatter wouldn't have been picked up, or that it would have been done with hand signals or something. But then, logic and rationality aren't Sibrel's strongest points.
We had a discussion of Sibrel's "talk" claim on the previous ApolloHoax board in February 2006:-
http://apollohoax.proboards.com/thread/750/talkJayUtah explained the sound in his first post:-
What Sibrel interprets as the word "talk" (and doesn't let anyone tell him differently) is a garble caused by leakage through the intercom diodes. It was a well known problem with the Apollo comm system and it happens only about a thousand times in every mission, including just before the well-known "Houston, we have a problem" transmission.
The garble which Sibrel claims is "talk" is at the beginning of Apollo 11's unscheduled television transmission at GET 10:32:00, or on the Spacecraft Films Apollo 11 DVD set, Disc 1 / "Fly Me to the Moon" / "Television transmissions 10:32 GET, 33:59 GET" / Chapter 1.
To me it sounds more like "tuft" and not at all like "talk" in either American, British or New Zealand accents.
By applying a similar flight of fancy to Sibrel's, it's possible to dream up words for all the other garbles during the 15-minute transmission as follows. Times are for the first edition of the Spacecraft Films DVDs:--
0:10 Iddup.
0:22 Tuft.
0:35 Text tum deaf.
0:41 Rob we der.
1:02 Dah der, dip rider.
1:11 Dig sig.
1:49 Darp dip.
2:18 Cart in.
3:15 Giddy get one punch-up.
3:18 We deb so deg 'n' darbdee debder.
4:03 Up oop.
4:13 Sharp shoon.
4:14 [Sound of vacuum cleaner.]
4:20 [Sound of whistling wind.]
5:20 Deke crass.
5:41 Vip vop 'n' vamp.
5:48 Janet.
7:03 Whose dinner? Epdee ope wer dapdee dane.
7:08 Ribbit.
7:47 Ti-futt.
9:46 D'bing babe.
9:49 'Sup?
10:15 Sarb seff, zah-zef soap.
11:01 Zap. Zip zop zoom.
11:23 Car.
12:12 Dup. Poop.
12:54 Yow. Book 'er.
13:02 Dow dark.
13:18 Sig sub.
13:21 Oopie blorp.
14:11 Doop derp.
14:14 Wip werp.
14:27 Sip surp.
15:20 Dup.
15:22 Diddup.
Don't take the list seriously, as some people have done. The technique is similar to putting words to birds' songs - probably an aural form of self-induced pareidolia.