MARDI microphone, maybe possibly it'll be turned on? |
MARDI microphone, maybe possibly it'll be turned on? |
Sep 18 2008, 03:52 PM
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#1
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Leonard David reports that "the Phoenix lander team is going forward with turning on the spacecraft’s microphone."
I'm working on finding out more details. (For instance, I want to know if this also means they'll get to use the camera itself, maybe get a different perspective on Holy Cow, if the camera's pointing the right way.) In the meantime, enjoy hearing what Bill Nye and others would sound like on Mars before they asphyxiated. Yay! Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Oct 15 2008, 05:16 PM
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
It's not 8 bits/sample
(you said please) If it's roughly the same as the '98 one, the ADC is 12bit. Prepare to be unamazed by the quality. http://www.planetary.org/programs/projects...microphone.html |
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Oct 15 2008, 05:56 PM
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#3
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Senior Member Group: Members Posts: 2542 Joined: 13-September 05 Member No.: 497 |
If it's roughly the same as the '98 one, the ADC is 12bit. It's got nothing in common with the Planetary Society microphone, but it's not 8 bits. "DSP561xx processors are noteworthy because they include a sigma-delta codec on-chip. The sigma-delta codec provides linear, analog I/O with 16-bit resolution over a bandwidth of approximately 4 kHz. Motorola states that the codec has a signal to noise-plus-distortion ratio of greater than 60 dB. " As always with ADCs, though, caveat emptor about how many of the stated bits are actually significant... QUOTE Prepare to be unamazed by the quality. Indeed. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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