PakledHostage Posted February 22, 2021 Share Posted February 22, 2021 1 hour ago, cubinator said: But it did make audio recordings, Perseverance is not the first in that respect. And admittedly not a planet, but I recall that Huygens recorded audio on Titan? Quote Link to comment Share on other sites More sharing options...
YNM Posted February 22, 2021 Share Posted February 22, 2021 5 minutes ago, PakledHostage said: And admittedly not a planet, but I recall that Huygens recorded audio on Titan? Yep, they did. Quote Link to comment Share on other sites More sharing options...
tater Posted February 22, 2021 Share Posted February 22, 2021 Just the down cam: Quote Link to comment Share on other sites More sharing options...
Klapaucius Posted February 22, 2021 Share Posted February 22, 2021 9 minutes ago, tater said: Just the down cam: I just saw the link in the NY Times. Wow! Just...wow! Quote Link to comment Share on other sites More sharing options...
PakledHostage Posted February 22, 2021 Share Posted February 22, 2021 13 minutes ago, tater said: Just the down cam That thing really is going down like a greased piano... no messing around. Quote Link to comment Share on other sites More sharing options...
JoeSchmuckatelli Posted February 22, 2021 Share Posted February 22, 2021 1 hour ago, tater said: Just the down cam: Look at 0:35 -- looks a lot like dried mud... and not far from the landing site! Quote Link to comment Share on other sites More sharing options...
MKI Posted February 22, 2021 Share Posted February 22, 2021 1 hour ago, Klapaucius said: Wow! Just...wow! Same! I honestly love the inclusion of the equipment to capture this video, its a shame the audio didn't work, but the video alone. Wow. Its one thing to get still shots, its another to follow perseverance down to the ground in real time. Truly is a way to provide that "human experience" out among the stars. Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted February 23, 2021 Share Posted February 23, 2021 1 hour ago, MKI said: I honestly love the inclusion of the equipment to capture this video, its a shame the audio didn't work, but the video alone. Wow. Its one thing to get still shots, its another to follow perseverance down to the ground in real time. I believe the audio worked just fine; they didn't have it downloaded yet. Unless there's been some other announcement. Quote Link to comment Share on other sites More sharing options...
cubinator Posted February 23, 2021 Author Share Posted February 23, 2021 1 minute ago, sevenperforce said: I believe the audio worked just fine; they didn't have it downloaded yet. Unless there's been some other announcement. They said in the presser today that they thought it was probably some kind of issue between the device that digitized the analog signal and the computer. I don't know if that means they can't scrap the sound back together or if it just didn't save to the computer. Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted February 23, 2021 Share Posted February 23, 2021 5 hours ago, YNM said: How often are they planning to record audios from the surface ? I'm honestly wondering now if the microphone is actually the one worth more than the cost by a large margin because that's a serious troubleshoot resource if any. Stuck motors ? Check the sound. Stuck mechanism ? Check the sound. Stuck in a rock ? Check the sound of how it got stuck... Per my source anything they want to record will need to be programmed in advance. It won't be just sort of casually/passively listening. Quote Link to comment Share on other sites More sharing options...
kerbiloid Posted February 23, 2021 Share Posted February 23, 2021 Titan has an atmosphere to conduct sound. Mars is nearly a vacuum. Quote Link to comment Share on other sites More sharing options...
mikegarrison Posted February 23, 2021 Share Posted February 23, 2021 2 hours ago, kerbiloid said: Titan has an atmosphere to conduct sound. Mars is nearly a vacuum. I'm not sure what you are saying. Mars certainly has sound. By the way, audio has been put on the web. https://www.nasa.gov/press-release/nasa-s-mars-perseverance-rover-provides-front-row-seat-to-landing-first-audio Quote Link to comment Share on other sites More sharing options...
kerbiloid Posted February 23, 2021 Share Posted February 23, 2021 (edited) 55 minutes ago, mikegarrison said: I'm not sure what you are saying. Mars certainly has sound. I'm about quality. And about sound in air vs sound through ground, like here. Technically snakes are deaf. But they could listen on Mars as well as on Earth. Because they listen by touch. Edited February 23, 2021 by kerbiloid Quote Link to comment Share on other sites More sharing options...
Tw1 Posted February 23, 2021 Share Posted February 23, 2021 (edited) 4 hours ago, mikegarrison said: By the way, audio has been put on the web. https://www.nasa.gov/press-release/nasa-s-mars-perseverance-rover-provides-front-row-seat-to-landing-first-audio I'm hoping for a video version with the sound in it Edited February 23, 2021 by Tw1 Quote Link to comment Share on other sites More sharing options...
tater Posted February 23, 2021 Share Posted February 23, 2021 5 hours ago, mikegarrison said: I'm not sure what you are saying. Mars certainly has sound. I think he meant it was more that sound would not be heard or transmitted well in the near vacuum subjectively. Meaning if you took off your helmet and the wind was blowing you'd not hear much of anything. Quote Link to comment Share on other sites More sharing options...
kerbiloid Posted February 23, 2021 Share Posted February 23, 2021 (edited) This sound is probably heard snakely, from the ground vibration. Put a microphone on the table and you will get recognizable sounds but very distorted, not volumetric audio like you got used to. Edited February 23, 2021 by kerbiloid Quote Link to comment Share on other sites More sharing options...
tater Posted February 23, 2021 Share Posted February 23, 2021 Just now, kerbiloid said: This sound is probably heard snakely, from the ground vibration. I don't think so. Listen to the wind sound. We know the pressure associated with that sound is incredibly low, what makes more sense, that the wind (almost no pressure) vibrates a thin microphone membrane, or the same wind vibrates the rover itself, or the ground? A human there of course might not detect anything. (aside from his own gasping for air ) Quote Link to comment Share on other sites More sharing options...
YNM Posted February 23, 2021 Share Posted February 23, 2021 5 hours ago, mikegarrison said: audio has been put on the web. https://www.nasa.gov/press-release/nasa-s-mars-perseverance-rover-provides-front-row-seat-to-landing-first-audio On soundcloud as well at that ! Waiting for the first remix Quote Link to comment Share on other sites More sharing options...
Snark Posted February 23, 2021 Share Posted February 23, 2021 20 hours ago, cubinator said: There is a hidden message in the parachute's pattern! Apologies if this has already been discussed here somewhere, but I poked around a bit and didn't see it here. Below is a discussion of what the parachute's encoded message actually is. https://imgur.com/gallery/o9BFwBl Quote Link to comment Share on other sites More sharing options...
JoeSchmuckatelli Posted February 23, 2021 Share Posted February 23, 2021 42 minutes ago, Snark said: Apologies if this has already been discussed here somewhere, but I poked around a bit and didn't see it here. Below is a discussion of what the parachute's encoded message actually is. https://imgur.com/gallery/o9BFwBl Nerds Quote Link to comment Share on other sites More sharing options...
JcoolTheShipbuilder Posted February 23, 2021 Share Posted February 23, 2021 Hmm.... is it possible for Perseverance to record Ingenuity’s first flight or are the cameras on the main mast only picture and audio. Quote Link to comment Share on other sites More sharing options...
cubinator Posted February 23, 2021 Author Share Posted February 23, 2021 37 minutes ago, JcoolTheShipbuilder said: Hmm.... is it possible for Perseverance to record Ingenuity’s first flight or are the cameras on the main mast only picture and audio. They will see if they can get a video. Quote Link to comment Share on other sites More sharing options...
JcoolTheShipbuilder Posted February 23, 2021 Share Posted February 23, 2021 46 minutes ago, cubinator said: They will see if they can get a video. Awesome Quote Link to comment Share on other sites More sharing options...
mikegarrison Posted February 23, 2021 Share Posted February 23, 2021 3 hours ago, tater said: I think he meant it was more that sound would not be heard or transmitted well in the near vacuum subjectively. Meaning if you took off your helmet and the wind was blowing you'd not hear much of anything. The clip posted by NASA clearly includes wind-generated turbulence noise. It's quite a distinctive sound. Quote Link to comment Share on other sites More sharing options...
cubinator Posted February 23, 2021 Author Share Posted February 23, 2021 15 minutes ago, mikegarrison said: The clip posted by NASA clearly includes wind-generated turbulence noise. It's quite a distinctive sound. And the scientist who unveiled it was speaking into an identical microphone to demonstrate that it records natural sound. Indeed, if you tried to listen to it on Mars with your bare ears you would mostly just feel pain in your ears, but you might hear and feel a little whoosh against your spacesuit if you were wearing proper Martian attire. I am curious how well sound is transmitted through the air. Will we be able to hear the helicopter take flight? Could you understand another astronaut speaking to you without their transmitter operating? What does a rocket engine sound like from a distance? Quote Link to comment Share on other sites More sharing options...
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