A-weighting is the most commonly used of a family of curves defined in the International standard IEC 61672:2003 and various national standards relating to the measurement of sound pressure level. A-weighting is applied to instrument-measured sound levels in an effort to account for the relative loudness perceived by the human ear, as the ear is less sensitive to low audio frequencies. It is employed by arithmetically adding a table of values, listed by octave or third-octave bands, to the measured sound pressure levels in dB. The resulting octave band measurements are usually added (logarithmic method) to provide a single A-weighted value describing the sound; the units are written as dB(A). Other weighting sets of values – B, C, D and now Z – are discussed below.
The curves were originally defined for use at different average sound levels, but A-weighting, though originally intended only for the measurement of low-level sounds (around 40 phon), is now commonly used for the measurement of environmental noise and industrial noise, as well as when assessing potential hearing damage and other noise health effects at all sound levels; indeed, the use of A-frequency-weighting is now mandated for all these measurements, because decades of field experience have shown a very good correlation with occupational deafness in the frequency range of human speech. It is also used when measuring low-level noise in audio equipment, especially in the United States. In Britain, Europe and many other parts of the world, broadcasters and audio engineers more often use the ITU-R 468 noise weighting, which was developed in the 1960s based on research by the BBC and other organizations. This research showed that our ears respond differently to random noise, and the equal-loudness curves on which the A, B and C weightings were based are really only valid for pure single tones.

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  1. P

    Ibang DBZ ata etong nakita ko eh

    may cross over pala sila ng sailormoon hah? 🤔
  2. O

    Torrent Dragon Ball Z Kakarot (Ultimate Edition)

    Relive the story of Son Goku and other Z Warriors in DRAGON BALL Z: KAKAROT! Meet the world of DRAGON BALL Z not only for its epic battles, but also while fighting, fishing, eating and training with Son Goku, Son Gohan, Vegeta and many more. ISO image size: 31200MB Number of compressions: only...
  3. I

    Closed Ask lang kung may makakasagot ?

    putol po ba talaga ang dragonball super: Broly movie ??
  4. S

    Closed Need help

    Guys. Baka naman may link na kayo ng DBZ Super Broly. Pashare na naman haha. Thank you
  5. N

    Closed Dragon ball unreal

    Sa mga nag hahanap ng dragon ball unreal jan eto yung link 1.4gb http://www.mediafire.com/file/az3kfu1z8bbm719/DBUreal-arm64-es2.apk Gameplay https://m.YøùTùbé.com/watch?v=DgAn-IFNILs Sabi ng developer ng game pang snapdragon lang daw to Snapdragon - karamihan nito mga pang gaming phone...
  6. P

    Closed ║dragon ball legends ║

    Dragon Ball Legends (Not yet global release) Hindi niyo maiinstall pag labas ng playstore lang idownload.. kelangan niyo ma download sa playstore mismo.. eto ginawa ko.. :thumbsup: Steps: 1. download niyo TurboVPN 2. connect sa Neitherlands 3. clear cache and data playstore at i remove niyo...
  7. C

    Closed Dragon ball

    Magandang laro sa pc ng dragonball? Pareply narin nung link. Kung pwede po sana yung kahit hanggang 1.5GB lang.
  8. C

    Closed Dbz xv

    Meron po bang laro na DragonballXenoverse na highly compressed?
  9. C

    Closed Dragonball xenoverse

    Tutorial nga po mga boss kung paano magdownload ng DB Xenoverse sa Pc, yung highly compressed na po daw then paano install. Nagpapahelp lang po mga insan ko. Merry christmas ulit!
  10. B

    Closed Toriko x one piece x dbz crossover stonestream english dub

    Toriko x One Piece x DBZ Crossover Stonestream English Dub
  11. C

    Closed Dragon ball ttt ultra mod super

    Sino po dito may mega link ng iso ng dragon ball tenkaichi tag team mod yung modified mga characters complete form si goku vegeta at nandun mga god of destruction at ibang character sa db super penge naman po link thank u.
  12. P

    Closed Saiyan rangers

  13. D

    Closed Dragon Ball Z DOKKAN BATTLE APK MOD High Damage

    Dragon Ball Z DOKKAN BATTLE APK MOD High Damage Game description: Dragon ball Z: Dokkan battle: Dragon ball Z: Dokkan battle - make a team of heroes and fight numerous enemies. Tap colored spheres appearing on the screen in order to gain energy. This Android game is based on a popular...

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