Anechoic

30 ms·

121.
by Anechoic 6y ago
Keep in mind that's likely not related to the dB sound pressure level in air that we're all familiar with. dB is a logarithmic ratio to pressure to a reference. In air, that reference is 20µPa, acoustic pressure in water typically
122.
by Anechoic 6y ago
As pro-am mentioned, non-defeatable Telemetry.
123.
by Anechoic 6y ago
You can tell roughly how far away a sound source is by measuring the curvature of the wavefront, since sound radiates out in a sphere. The farther away you are, the lower the parallax between two sensors. That only works in the free field
124.
by Anechoic 6y ago
First thing: unless that middle air gap is very wide (10+ inches), you've just created a resonant chamber that almost completely negates the sound reducing performance of the two double-pane layers. This is way party walls consisting o
125.
by Anechoic 6y ago
Black Americans care about police violence because we need to have a good relationship with authorities to help with the other problems (including, yes, black-on-black crime). That's why you see support in the black community both for
126.
by Anechoic 6y ago
Of course not, because the police generally do not self-report when they victimize someone. Certainly the plethora of videos that have come out over the past few weeks, and the associated sales police reports describing those situations, in
127.
by Anechoic 6y ago
Blacks are killed by police disproportionately by a factor of around 2-3x The fear may be there, but I don't see it justified in the numbers. It's not just about getting killed - it's about getting unfairly fined, arreste
128.
by Anechoic 6y ago
Some environmental impacts can be fixed later, but it generally much more expensive to "bolt-on" a fix than to design the project properly in the first place. This of course means the fix is rarely implemented. According to NEPA
129.
by Anechoic 7y ago
I run a small engineering consulting firm (traditional engineering, not CS/programming) based in Massachusetts, with 13 employees spread across 5 states. Most of our work comes from consulting for state and Federal agencies on large tr
130.
GM Unveils Battery with Capacity Twice as Big as Tesla’s(caranddriver.com)
1 points by Anechoic 7y ago|0 comments
131.
by Anechoic 7y ago
What made this so ridiculous was that iTunes had a supported method to interface with other devices that worked well (it's the reason why I stuck with my Nokia devices for so long before jumping into the iOS ecosystem with the iPhone 5
132.
by Anechoic 7y ago
Internet stores are surprisingly bad (for whatever reason) at pricing international shipping competitively. Small businesses are stuck with what the big shippers charge for international shipping (and shipping in general). You basically d
133.
by Anechoic 7y ago
It’s a quote from the U.S. president at Davos.
134.
by Anechoic 7y ago
Soem comments on both the article, and other comments here: - It's an interesting assessment, but without know the details of how he did the measurement, take care in interpreting the results. If he was using a smart-phone just lying o
135.
by Anechoic 7y ago
"The latter can certainly be more efficient [..]"
136.
by Anechoic 7y ago
caltrans was on the streets of oakland grinding up a bike lane to make an extra lane for cars, If this was related to the fire, and temporary, it doesn't need a review. If it was permanent and done without review, I'd like to se
137.
by Anechoic 7y ago
These aren't the same situation. One is restoring a piece of infrastructure to it's original working condition, the other is making a substantial change in infrastructure that requires due diligence. The latter can certainly be mo
138.
by Anechoic 7y ago
They also reference modern lossy compression which also predominately affects very low and very high frequencies.
139.
by Anechoic 7y ago
The directivity of a microphone (no matter the pickup pattern) is not the same as the human ear so it either picks up or leaves out sounds that human ears would normally hear.
140.
by Anechoic 7y ago
Microphones and playback quality have come a long way The technology has come a long way (or at least some way in the case of microphones), but we still deal with the choices that recording engineers make. Recording microphones are not
141.
by Anechoic 7y ago
"Needless to say I canceled my credit card and got a new one." "In the past 24-hours I did a deep dive into my Amazon account and changed many passwords."
142.
by Anechoic 7y ago
Who really wants to take a train from Chicago to Los Angeles other than tourists? Pretty much no one. But Chicago to St. Louis? Or Chicago to Minneapolis? Or Charlotte to Atlanta? Or Dallas to Houston? Or LA to San Francisco? Etc/etc
143.
by Anechoic 7y ago
Amtrak subsidies are highway subsidies. Without Amtrak, a good chunk of those passengers would be in single-occupancy autos traveling on highways. It only takes a small increase (1% to 5% depending on the specific highway) to go from leve
144.
by Anechoic 7y ago
Sir Rod Stewart donates to Market Deeping Model Railway Club https://www.bbc.com/news/uk-england-lincolnshire-48332649 Vandals damaged model railway exhibition, Rod made a donation to help restore it.
145.
by Anechoic 7y ago
From what I heard 3rd/4th hand/speculation, the "stealth" helicopters are quieter than normal helos but at the cost of efficiency and maneuverability. There are always tradeoffs. edit: what nradov said.
146.
by Anechoic 7y ago
FWIW, most (if not all) of the big tech companies working on flying cars or UAV are aware of the noise problem and have in-house teams working with research labs & consultant on the problem. Now whether or not they succeed is another
147.
by Anechoic 7y ago
You would give affirmative action based on economic status, not race But race also matters in terms of starting position.
148.
by Anechoic 7y ago
Most consumers don’t use any of those things any longer. Vinyl records, yes (mostly). I'm pretty sure the other two things are still in pretty wide use. [0] https://money.cnn.com/2017/04/27/media/e
149.
by Anechoic 7y ago
The "unarmed black man shot and killed by police" The issue isn't just being killed by police - It's also being beaten by police, having things unlawfully seized by police, being unjustly cited or arrested by police,
150.
by Anechoic 7y ago
You can do the same on iPhones by turning off "hey Siri" and configuring Siri to work manually.

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