Decibel Calculator
Sound levels ko waise jodiye jaise energy milti hai, doori se girawat nikaliye aur surakshit exposure time dekhiye.
Decibel Calculator aapke browser mein chalta hai. Aapki readings device par hi rehti hain.
Wavelength & Frequency Calculator kholiye
Decibel Calculator ke baare mein
Decibels logarithmic hain, isliye saadharan jod ke niyam nahin chalte: do 80 dB machines milkar 83 dB banati hain, 160 nahin, aur 80 dB ke saath 60 dB jodne se lagbhag kuch nahin badalta. Teen baatein poora kaam karti hain — barabar sources 3 dB jodte hain, khule mein doori dugni hone par 6 dB girta hai, aur awaaz dugni lagne ke liye lagbhag 10 dB chahiye. Ye calculator sources jodta hai, background ghatata hai, doori badalta hai aur exposure time nikalta hai.
Features
- Kitne bhi levels ka sahi energy-based jod
- Ek source alag karne ke liye background subtraction
- N barabar sources ka level ek saath
- Doori dugni hone par 6 dB girawat, dono taraf
- NIOSH aur OSHA ki alag-alag daily limits
- Rozmarra ki awaazon ki reference table
Decibel Calculator kaise use karein
- Chuniye ki sources jodne hain, doori badalni hai ya exposure dekhni hai
- Naape gaye levels decibels mein daaliye
- Combined level, naya level ya surakshit samay padhiye
- Reference sounds se tulna kijiye
Example
Input
Two machines at 80 dB each
Output
83.01 dB combined — the second machine adds 3 dB
Safe NIOSH exposure at that level: 5.0 hours
Energy dugni hone par 3 dB judte hain; awaaz dugni lagne ke liye lagbhag 10 chahiye.
Common errors aur troubleshooting
- Dheemi source jodne se kuch nahin badla. — Yahi sahi vyavhaar hai. 10 dB neeche ki source lagbhag 0.4 dB jodti hai aur 20 dB neeche wali lagbhag anadekhi — isliye sirf sabse tez machine shaant karna kaam ka hai.
- Doori ke saath naapi girawat 6 dB se kam hai. — Spherical spreading sirf khule mein aur bina reflection ke chalti hai. Andar, corridor mein ya deewar ke paas reflected energy level bnaye rakhti hai.
- NIOSH aur OSHA bahut alag samay dete hain. — Unke niyam alag hain: NIOSH 85 dB se shuru karke har 3 dB par samay aadha karta hai; OSHA 90 dB se shuru karke har 5 dB par. NIOSH zyada suraksha deta hai.
Aksar pooche jaane wale sawaal
- Decibels kaise jode jate hain?
- Har level ko energy mein badliye, jodiye aur wapas dB mein laiye: 10 × log₁₀(Σ 10^(L/10)). Do barabar sources hamesha ek se 3 dB upar aati hain, level chahe jo ho.
- 3 dB power dugni karta hai par awaaz dugni kyun nahin lagti?
- 3 dB theek dugni acoustic energy hai, par kaan is scale ko dabata hai. Sunayi dene wali loudness lagbhag har 10 dB par dugni hoti hai.
- Doori ke saath awaaz kitni girti hai?
- Khule mein har baar doori dugni hone par 6 dB, kyunki energy phailti hui sphere par bat jati hai. Ek metre par 100 dB do metre par 94 aur das metre par 80 hota hai.
- 95 dB par kitni der rehna surakshit hai?
- NIOSH ke hisaab se din mein lagbhag 47 minute; OSHA ke narm niyam se chaar ghante. 85 dB se upar hearing protection ki salaah di jati hai.
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