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MARDI microphone, maybe possibly it'll be turned on?
elakdawalla
post Sep 18 2008, 03:52 PM
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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


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djellison
post Oct 15 2008, 05:16 PM
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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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mcaplinger
post Oct 15 2008, 05:56 PM
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QUOTE (djellison @ Oct 15 2008, 10:16 AM) *
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.


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Posts in this topic
- elakdawalla   MARDI microphone   Sep 18 2008, 03:52 PM
- - Stu   That's fantastic news! Being able to play ...   Sep 18 2008, 03:56 PM
|- - ugordan   QUOTE (Stu @ Sep 18 2008, 05:56 PM) is th...   Sep 18 2008, 04:24 PM
- - fredk   I wonder if it will be sensitive enough to hear wi...   Sep 18 2008, 05:03 PM
- - elakdawalla   It's hard to know what, if anything, it'll...   Sep 18 2008, 05:18 PM
- - ElkGroveDan   It would be great if they could acquire audio duri...   Sep 18 2008, 05:22 PM
|- - ugordan   The motors in the robotic arm should produce a buz...   Sep 18 2008, 05:27 PM
- - elakdawalla   OK, here's a challenge for someone(s) with a f...   Sep 18 2008, 10:21 PM
- - Astro0   Perhaps we'll hear this... Sorry...couldn...   Sep 18 2008, 10:39 PM
- - djellison   OK - If Phoenix is like a clock... Solar Panels a...   Sep 18 2008, 11:01 PM
|- - dshaffer   QUOTE (djellison @ Sep 18 2008, 06:01 PM)...   Sep 19 2008, 01:13 AM
|- - mcaplinger   QUOTE (djellison @ Sep 18 2008, 04:01 PM)...   Sep 19 2008, 03:33 AM
|- - Paul Fjeld   If the camera's 22 degrees pointing out, and s...   Sep 19 2008, 03:59 AM
- - PDP8E   doug, In the second image you posted above ( htt...   Sep 18 2008, 11:47 PM
- - elakdawalla   You would think that, but actually it does pretty ...   Sep 19 2008, 01:15 AM
|- - dshaffer   QUOTE (elakdawalla @ Sep 18 2008, 09:15 P...   Sep 19 2008, 01:22 AM
- - elakdawalla   OK, I've got more details for all of you! ...   Sep 19 2008, 04:09 AM
- - djellison   Round up a bit. 66 deg FOV, 22 deg out-from-Nadir...   Sep 19 2008, 07:11 AM
|- - Paul Fjeld   QUOTE (djellison @ Sep 19 2008, 02:11 AM)...   Sep 19 2008, 04:37 PM
- - climber   Now that we "know" where Mardi is, can w...   Sep 19 2008, 09:53 AM
|- - mcaplinger   QUOTE (climber @ Sep 19 2008, 01:53 AM) c...   Sep 19 2008, 01:33 PM
|- - ustrax   Now...wouldn't it be great to capture another ...   Sep 19 2008, 02:06 PM
|- - ElkGroveDan   QUOTE (mcaplinger @ Sep 19 2008, 06:33 AM...   Oct 2 2008, 01:45 PM
- - jumpjack   It would be really cool to hear Phoenix digging Ma...   Oct 2 2008, 07:12 AM
- - Decepticon   When can we expect science return?   Oct 3 2008, 12:35 AM
- - CosmicRocker   There was a small comment about when the microphon...   Oct 4 2008, 04:36 AM
|- - centsworth_II   QUOTE (CosmicRocker @ Oct 3 2008, 11:36 P...   Oct 4 2008, 05:06 PM
|- - Deimos   SSI and MECA-OM are noisy. I don't think the...   Oct 5 2008, 02:21 AM
- - mcaplinger   Does anyone know where the SSI exposure times migh...   Oct 9 2008, 12:47 AM
|- - 1101001   QUOTE (mcaplinger @ Oct 8 2008, 05:47 PM)...   Oct 9 2008, 01:00 AM
|- - mcaplinger   QUOTE (1101001 @ Oct 8 2008, 06:00 PM) Li...   Oct 9 2008, 02:33 AM
- - elakdawalla   Exposure information can be found in the header fo...   Oct 9 2008, 02:37 AM
|- - mcaplinger   QUOTE (elakdawalla @ Oct 8 2008, 06:37 PM...   Oct 9 2008, 02:46 AM
|- - Skyrunner   QUOTE (mcaplinger @ Oct 9 2008, 04:46 AM)...   Oct 9 2008, 09:08 AM
- - elakdawalla   Hmm. If I want to see a header, usually I just op...   Oct 9 2008, 03:14 AM
- - Juramike   QUOTE "Hello...hello...(tap, tap, tap)...is t...   Oct 15 2008, 02:33 PM
|- - mcaplinger   QUOTE (Juramike @ Oct 15 2008, 07:33 AM) ...   Oct 15 2008, 04:19 PM
|- - ugordan   Please say it's not 8 bits/sample!   Oct 15 2008, 04:27 PM
- - djellison   It's not 8 bits/sample (you said please) If ...   Oct 15 2008, 05:16 PM
|- - ugordan   I am indeed unamazed, but at least the sample dept...   Oct 15 2008, 05:39 PM
|- - mcaplinger   QUOTE (djellison @ Oct 15 2008, 10:16 AM)...   Oct 15 2008, 05:56 PM
- - fredk   Well, I wouldn't say that we exactly need high...   Oct 15 2008, 06:31 PM
- - Stu   Sneak preview of the first sounds to be recorded b...   Oct 15 2008, 07:20 PM
- - ConyHigh   http://www.popularmechanics.com/science/ai....html...   Oct 15 2008, 09:35 PM
- - fredk   From the BBC: QUOTE We'll start slowly, just t...   Oct 21 2008, 04:04 PM
|- - MahFL   Bang a few pots....I like it.   Oct 21 2008, 05:22 PM
- - Enceladus75   I really hope that they get the microphone up and ...   Oct 23 2008, 01:05 AM
- - CosmicRocker   QUOTE (fredk @ Oct 21 2008, 11:04 AM) Fro...   Oct 26 2008, 05:49 AM
|- - tedstryk   Does anyone know if they ever got a chance to use ...   Oct 31 2008, 08:00 PM
|- - 1101001   QUOTE (tedstryk @ Oct 31 2008, 01:00 PM) ...   Oct 31 2008, 10:28 PM
|- - 1101001   This is somewhat old news -- at least 24 hours old...   Nov 5 2008, 11:46 PM
- - Shaka   The things we take for granted...   Nov 5 2008, 11:53 PM

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