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Many digital filters are based on the Fast Fourier transform, a mathematical algorithm that quickly extracts the frequency spectrum of a signal, allowing the spectrum to be manipulated ( such as to create band-pass filters ) before converting the modified spectrum back into a time-series signal.
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Many and digital
Many dual system television receivers, equipped to receive both analog transmissions and digital transmissions have analog tuner ( television ) receiving capability and must use a television antenna.
Many types of counter circuits are available as digital building blocks, for example a number of chips in the 4000 series implement different counters.
Many countries are replacing broadcast analog television with digital television to allow other uses of the television radio spectrum.
Many small-format digital SLR camera systems allow using many of the same lenses on both full-frame and “ cropped format ” cameras.
Many types of video compression exist for serving digital video over the internet and on optical disks.
Many interfaces have been designed specifically to handle the requirements of uncompressed digital video ( at roughly 400 Mbit / s ):
Many instances of video or digital playback occurred during the early 2000s and claims to significance for the development of the industry vary.
Many of Galen's works are included in the Thesaurus Linguae Graecae, a digital library of Greek literature started in 1972.
Many lab-on-a-chip applications have been demonstrated within the digital microfluidics paradigm using electrowetting.
Many more microprocessors are part of embedded systems, providing digital control of a myriad of objects from appliances to automobiles to cellular phones and industrial process control.
Many layout builders are choosing digital operation of their layouts rather than the more traditional DC design.
Many digital, virtual analog and software synthesizers utilise subtractive synthesis, sometimes in conjunction with other methods of sound synthesis.
Many television stations are now in the process of converting from analogue ( NTSC, PAL or SECAM ) broadcast, to digital TV ( ATSC broadcast, DVB or ISDB ).
Many digital voltmeters and all moving coil meters are in this category.
Many digital designs, including those of ICs, are simulated to detect defects before the unit is constructed.
Many more nations became aware of EMC as a growing problem and issued directives to the manufacturers of digital electronic equipment, which set out the essential manufacturer requirements before their equipment could be marketed or sold.
Many pitch generators operate in the digital domain, producing output in various digital audio formats such as AES-3, or SPDIF.
Many updates of film stocks are in response to the improvement of digital video technology.
Many form contracts are only contained in digital form, and only presented to a user as a click-through where the user must " accept ".
Many artists in Egypt have taken on modern media such as digital art and this has been the theme of many exhibitions in Cairo in recent times.
Many digital cameras can also record moving video with sound.
Many traditional disciplines are now integrating digital technologies and, as a result, the lines between traditional works of art and new media works created using computers has been blurred.
Many currencies exploit the tendency of digital scanners to produce moiré patterns by including fine circular or wavy designs that are likely to exhibit a moiré pattern when scanned and printed.
Many and filters
Search-engine filters: Many search engines, such as Google and Alta Vista offer users the option of turning on a safety filter.
Many libraries adopted Internet filters after Congress conditioned the receipt of universal service discounts on the use of Internet filters through the Children's Internet Protection Act ( CIPA ).
Many content filters have an option which allows authorized people to bypass the content filter.
Many scare stories have originated from various Russian gas masks and their filters that are now common in surplus stores ; the GP-5 was often considered to have an asbestos filter, however like most cold-war masks it only contains activated charcoal.
Many second-order filters are designed to have " peaking " or resonance, causing their frequency response at the cutoff frequency to be above the horizontal line.
Many fundamental DSP algorithms, such as FIR filters or the Fast Fourier transform ( FFT ) depend heavily on multiply – accumulate performance.
Many machines use " spin disc filters ", which remove the muck from the filter by centripetal force while it is back washed with solvent.
Many graphical software products ( e. g. Adobe Photoshop or GIMP ) offer simple motion blur filters.
Many household water filters and fish tanks use activated carbon filters to further purify the water.
Many current browsers do contain features similar to those provided by Proxomitron filters – blocking advertisements and pop-ups, for example.
Many RVs have built-in water filters.
Many types of filters exist for applications including graphic equalizers, synthesizers, sound effects, CD players and virtual reality systems.
Many power strips have built-in surge protectors or EMI / RFI filters: these are sometimes described as surge suppressors or electrical line conditioners.
Many filters absorb part of the light available, necessitating longer exposure.
Many other manufacturers make filters to fit Cokin holders.
Many filters use gravity, or gravity enhanced by vacuum ( suction ) in order to create this separation, often through a funnel-shaped device.
Many wear visors, goggles or have light filters implanted into their eyes, a sensitivity to light being a common Delaque weakness.
Many earlier multi-shot backs could natively capture only grayscale images ; color images were created by scanning three times through red, green, and blue filters which rotated into place.
Many municipal systems in the U. S. initially used slow sand filters, but as cities have grown they subsequently installed rapid sand filters, due to increased demand for drinking water.
Many games, such as World of Warcraft, and more recently, Habbo Hotel and RuneScape allow the user to turn the filters off.
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