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Questions tagged [audio]

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3
votes
1answer
69 views

Transmission of video and audio signals

I know this is a silly question.In july,2019 NASA's insight captured sound by wind gusts.Here is a link of video that shows the movement of robotic arms and sound of wind on mars. ...
9
votes
1answer
238 views

What's the “big monstrosity” mentioned by the Apollo 11 crew?

Mission day three, sitting in lunar orbit, the LM docked to the CM, and this conversation happens: What are they talking about? "Little fluorescent circles"? "All the engineering that went into ...
1
vote
0answers
108 views

From where do apps that listen to “Kennedy Space Center Communications” get their audio feed?

Watching the Everyday Astronaut video The best places to watch a rocket launch in Florida! near the end there are mentions of some "viewer tweets" including one that caught my eye. Download a ...
6
votes
1answer
1k views

Why were the two Quindar tones so close in frequency and not apodized?

This and this answer explain the function of the Quindar_tones within Apollo mission comms. At 2525 and 2475 HZ they are only 50Hz or 2% apart in frequency, and the duration is 250 ms or 0.25 seconds....
0
votes
1answer
958 views

What purpose serve the audible “bip” on apollo radio communications? [duplicate]

When looking at moonwalk videos, we can hear bips. What are those bips? Why are there bips? Do this bips still exist in nowaday space missions?
29
votes
1answer
4k views

Why were there beeps punctuating the voice communications during missions such as Apollo?

Voice communication between ground and spacecraft during missions such as Apollo seemed to be always punctuated by beeps. What was the origin of these beeps? Were they some sort of unavoidable ...