Am noise filter - Car air filter problems.
Am Noise Filter
- Noise reduction is the process of removing noise from a signal. Noise reduction techniques are conceptually very similar regardless of the signal being processed, however a priori knowledge of the characteristics of an expected signal can mean the implementations of these techniques vary greatly
- (Noise Filtering) Cleaning the signal (AC) from any interference.
Advanced Digital Signal Processing and Noise Reduction
Digital signal processing plays a central role in the development of modern communication and information processing systems. The theory and application of signal processing is concerned with the identification, modelling and utilisation of patterns and structures in a signal process. The observation signals are often distorted, incomplete and noisy and therefore noise reduction, the removal of channel distortion, and replacement of lost samples are important parts of a signal processing system.
The fourth edition of Advanced Digital Signal Processing and Noise Reduction updates and extends the chapters in the previous edition and includes two new chapters on MIMO systems, Correlation and Eigen analysis and independent component analysis. The wide range of topics covered in this book include Wiener filters, echo cancellation, channel equalisation, spectral estimation, detection and removal of impulsive and transient noise, interpolation of missing data segments, speech enhancement and noise/interference in mobile communication environments. This book provides a coherent and structured presentation of the theory and applications of statistical signal processing and noise reduction methods.
Two new chapters on MIMO systems, correlation and Eigen analysis and independent component analysis
Comprehensive coverage of advanced digital signal processing and noise reduction methods for communication and information processing systems
Examples and applications in signal and information extraction from noisy data
Comprehensive but accessible coverage of signal processing theory including probability models, Bayesian inference, hidden Markov models, adaptive filters and Linear prediction models
Advanced Digital Signal Processing and Noise Reduction is an invaluable text for postgraduates, senior undergraduates and researchers in the fields of digital signal processing, telecommunications and statistical data analysis. It will also be of interest to professional engineers in telecommunications and audio and signal processing industries and network planners and implementers in mobile and wireless communication communities.
Marantz 2130 Tuner
This is one of the finest FM tuners I have ever had the pleasure of using; easily on a par with the best from Macintosh, Sansui and others I've owned. Produced during the late 1970's, the 2130 was the penultimate result of a specifications and fidelity war in the consumer tuner and receiver market. Marantz pretty much pulled out all the stops for this one, and you can hear it if you have a good FM station to listen to. Personally, I pipe either a CD changer or Sirius satellite radio down some 75 ohm coax and have it hooked into every FM receiver in my home; keeps me from having to listen to the farm report and the other things my community (apparently) wants the local FM station to play. The compression on satellite radio doesn't result in extremely high fidelity, but if the choice has to be tolerable music at moderate fidelity, and high fidelity dreck... I'll take the moderate fidelity every time. At least I can count on the 2130 getting the best reproduction of the audio I have available to me. :)
The oscilloscope on the left can display tuning (center and strength at the same time), multipath, and audio. In audio mode, the left and right channels drive the horizontal and vertical signals respectively, so a mono signal draws a 45 degree line and stereo signals draw various elliptical patterns. It's quite informative, you can see how much separation there is at any one moment, and any noise comes through as fuzz on the trace. For multipath, the scope makes antenna adjustment (beam FM antennas) 100% accurate, you can tell instantly when you've got the antenna pointed in the optimum direction. The scope also has external inputs so you can monitor audio from the rest of your stereo system. On the front, there are horizontal and vertical positioning controls and an external level adjust. On the rear deck are focus and brightness adjustments; I've never had to touch them.
Aside from the scope and its controls, the tuner provides controls for two IF bandwidths, switchable AFC ("Quartz Lock"), mono/stereo, muting level and output level, 400 Hz calibration tone for Dolby recording, high blend (multiplex noise filter) and switchable Dolby demodulation (the latter being useless to most people now, as no station uses this anymore... but I just happen to have a low-power ultra-hifi Dolby FM transmitter... :-)
The AFC switches off when you have your hand on the dial, so you can tune normally. It feels silky smooth, and the tuner's ability to separate stations makes tuning quite crisp when you're on-station. As soon as you take your fingers off the knob, the AFC locks back in (if you have it on, of course) and the scope shows the station perfectly centered. The lock LED shows that the AFC is operating.
The AM side of the tuner is pretty good, but not up to the standards of the FM side. Too bad; it's not all that difficult to make a good AM tuner, but very few manufacturers ever paid proper attention to the problem in a consumer audio context. One notable exception to that being Sanyo. Not that it matters anymore; quality AM broadcasting, sad to say, is dying. The airwaves are filled with talking heads. Babbling heads. Something like that.
From time to time, you can find 2130 tuners for sale on EBay. My advice is, if you like FM listening, grab one. They're incredibly underpriced. They generally go for $500 to $750, depending on condition; but you can't buy a comparably performing tuner today for under five grand, and even then, you won't get some of the amenities you get with one of these. No kidding. If you like FM, this baby is the brass ring.
Test shots indoor, low-light, art filter: B&W Grainy
Shot in JPEG. Adobe camera RAW support for E-P3 just came out, but I haven't tried it, yet.
The E-P3 with 12mm f/2 lens performs well in low light—BUT, at ISO1600, I noticed much loss in details the shadow areas, not to mention presence ugly color noise. Now, that was with default settings—noise reduction ON, and "Noise Filter" standard.
For this image, I had Noise Filter off, but forgot to turn off Noise Reduction. By the way, the default menu system hides the user from tweaking with noise settings. I had to look at the instruction booklet to figure out how to turn off NR.
I am pretty impressed with the B&W grainy filter. In low-light, it does a great job, processing the images that actually look like they were shot with something like Ilford Delta 3200 film. IMO, the in-camera processor for grainy B&W does better than film simulation from Silver Efex (v1,at least).
There are (2) types of grainy B&W—(I) high contrast, (II) lower contrast (I think). I don't remember which one this image is, but I think it's (II).
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Best Air Filter For Cars - Yamaha V Star 1100 Oil Filter - Racing Fuel Filter.
Best Air Filter For Cars
- A particulate air filter is a device composed of fibrous materials which removes solid particulates such as dust, pollen, mold, and bacteria from the air.
- (air filters) Adhesive filters made of metal or various fibers that are coated with an adhesive liquid to which particles of lint and dust adhere. These filters will remove as much as 90% of the dirt if they do not become clogged. The more common filters are of the throwaway or disposable type.
- a filter that removes dust from the air that passes through it
- A device for filtering particles of dust, soot, etc., from the air passing through it, esp. one protecting the air inlet of an internal combustion engine
- A road vehicle, typically with four wheels, powered by an internal combustion engine and able to carry a small number of people
- A railroad car of a specified kind
- A vehicle that runs on rails, esp. a railroad car
- (car) the compartment that is suspended from an airship and that carries personnel and the cargo and the power plant
- (car) a motor vehicle with four wheels; usually propelled by an internal combustion engine; "he needs a car to get to work"
- (car) a wheeled vehicle adapted to the rails of railroad; "three cars had jumped the rails"
Shop-Vac 9991910 1.5-Peak HP Hippo Portable Industrial Handheld Vacuum
Convenient, Powerful Hand-Held Portable Vac! Perfect for office and computer equipment, audio/visual equipment and printers as well as general cleaning of shelves, bins or workbenches. Permanently lubricated 1.5 PHP motor. Efficient dual filter system includes convenient disposable filter bag. Converts to a blower. Includes: Shoulder strap, 6'L x 1-1/4"W hose, 1-1/4" diameter extension wand, crevice tool, round brush, 6" utility floor nozzle, conversion unit, 2-1/2" hose coupling, secondary filter and paper filter bag. Cord length: 18'. 120 V/60Hz. 7.2A. (USA)
Red Bull Air Race 092 Car Queue
After queueing for an hour to walk out, we queued for over 2 hours to drive out of the field. There was no marshalling so it was a free for all. Everyone just pointed their cars at the exit and hoped for the best. Most were pretty good and filtered considerately (with one noteable exception!). When we got to the gate there was one poor girl sending cars through one at a time.
If they'd had four or five proper queues it would have been quicker because she could have let, say, five cars from each queue go through at a time. Very badly organised.
Engine Air Filter
Wendy was helping me work on the car and she noticed that the engine
air intake was totally loose and pretty much disconnected. We clamped
it down and hoped for the best.
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Home Hepa Filter - Sta Rite Filter Cartridges - Filter Shekan Jadid 2011
Home Hepa Filter
- Filter that traps airborne particles by forcing air through very dense mesh.
- (HEPA Filters) Class of air filters which meet a minimum performance level of 99.97% on 0.3 microns efficiency. (This is only an efficiency test and may not show small pin holes or leaks.) In the cleanroom market HEPA is normally rated at 99.
- at or to or in the direction of one's home or family; "He stays home on weekends"; "after the game the children brought friends home for supper"; "I'll be home tomorrow"; "came riding home in style"; "I hope you will come home for Christmas"; "I'll take her home"; "don't forget to write home"
- Of or relating to the place where one lives
- home(a): used of your own ground; "a home game"
- Made, done, or intended for use in the place where one lives
- Relating to one's own country and its domestic affairs
- provide with, or send to, a home
Side view of house
4190 square feet (3062 finished; 1128 unfinished- basement). Historic home built in 1900, updated in 2004.
* New furnace with HEPA filter and UV light system installed in 2004
* Bozeman School District
* Just blocks from downtown Bozeman
* Near many recreational activities including: downhill and cross country skiing, hiking, biking, horseback riding and fishing
Wheels on and closeup of big 120mm air intake. I've stuck a HEPA gasmask pre-filter onto the inside of the fan to filter out some of the dust being sucked into the cabinet.
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IMAGE SPAM FILTER - NEW FILTER PROXY - RED LENS FILTER
Image Spam Filter
- Email filtering is the processing of e-mail to organize it according to specified criteria. Most often this refers to the automatic processing of incoming messages, but the term also applies to the intervention of human intelligence in addition to anti-spam techniques, and to outgoing emails as
- (Spam filtering) Our e-mail solution offers an effective spam filter that helps eliminate junk mail. It includes filter and delivery options, as well as language and e-mail address blocking.
- (Spam Filtering) Application designed to reduce the receipt of junk email *SPAM*
- A representation of the external form of a person or thing in sculpture, painting, etc
- persona: (Jungian psychology) a personal facade that one presents to the world; "a public image is as fragile as Humpty Dumpty"
- A visible impression obtained by a camera, telescope, microscope, or other device, or displayed on a video screen
- An optical appearance or counterpart produced by light or other radiation from an object reflected in a mirror or refracted through a lens
- render visible, as by means of MRI
- an iconic mental representation; "her imagination forced images upon her too awful to contemplate"
IRON SPAM - "THE WARHOL MACHINE"
"SPAMDY WARHOL MEATS SUPERHERO IRON SPAM AND PAYS TRIBUTE TO HIS STATUS AS A MODERN POP CULTURE ICON"
Uh. Well. You can see how I had no choice but to ring this particular variation on my Iron Spam/Iron Man parody action figure.....right?
With apologies to Andy Warhol, whose original work really was Soupercan!
This is just a photograph of my Iron Spam sans arms and legs, and with the top drawn Warhol style in Photoshop with a few passes made over the image with halftone and other artistic filters to try and recreate his signature silkscreen technique.
The State of Spam on Sphinn: Avatars, Sphinns, and General Craptastic Submissions
How people are spamming Sphinn today and dodging filters before they're created:
- using avatars
- Getting a second vote
- Creating loose ties to internet marketing (see next image especially)
- General crapola "internet marketing" only submitted for the link and not for any users' benefit.
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