Detail View: Stan Brakhage Collection: Demonstration of audio modulation

L-50-41 Chants - featuring Ginsberg -2.mp3
Demonstration of audio modulation
00:00 Narrator explains the audio is a demonstration of the audio modulation contained on various types of radar echoes such as the revolving propellers of aircrafts; 00:33 Various sounds of moving propellers can be heard on the recording; 01:42 Single Boeing B-17 can be heard flying in the recording; 02:40 Sound of a helicopter executing circles 2 miles from the radar; 03:46 Narrator talks about the echo box in relation to the helicopter. Sounds from the helicopter continue to record; 04:47 Narrator talks about modulation and antenna beams. Another sound appears, similar to static; 07:28 Narrator talks about signal ranges and stormy conditions present during some the recordings. An example is played; 8:10 Narrator talks about a doppler wheel and plays an example of a recording; 09:58 Narrator talks about the experimentation of removing and adding power to the doppler wheel and plays an example recording; 10:53 Narrator talks about the recording for an AT-11 aircraft and chaff dispensing system and then plays an example recording; 12:38 Narrator plays another recording of the AT-11; 13:29 Narrator talks about the sounds produced in the absence of pilots and plays an example recording; 14:05 Narrator talks about the doppler return from automobile traffic and plays a recording; 14:42 Narrator plays an audio modulation for heavy surf; 15:17 Recording cuts out and ends.
Description Type: 
Propellers, Aerial
Subject Type:
Sound -- Recording and reproducing
Subject Type:
Brakhage, Stan
Creator Type:
[Ginsberg, Allen, 1926-1997]
Contributor Type:
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
Format Medium: