Hauv suab paj nruag, headroom yog qhov chaw lossis "pab" ntawm qib siab thiab qib nruab nrab. Lub taub hau tso cai rau lub sijhawm ncov hauv lub teeb liab yam tsis muaj clipping (distorting).
Piv txwv li, yog tias ib zaj nkauj muaj qhov nrov tshaj plaws uas ncav cuag -3 dBFS, thiab qhov nruab nrab yog -6 dBFS, muaj 3 dB ntawm lub taub hau.
Cov nkauj yuav raug kaw ntawm -3 dBFS, thiab qhov nruab nrab theem yuav qis dua qhov ntawd thiab yuav tsis clip lossis distort vim tias nws tau ntes los ntawm lub kaw lus tsis muaj peaking nyob qhov twg ze 0dBFS.
Headroom rau digital audio
thaum cov ntaubntawv povthawj siv in digital suab, muaj lub taub hau txaus yog qhov tseem ceeb heev kom tsis txhob muaj teeb meem xws li clipping, distortion, thiab lwm yam kev txo qis.
Yog tias koj lub kaw lus khiav ntawm 0dBFS tab sis koj muaj lub suab nrov nrov hauv lub suab, nws yuav kaw vim tsis muaj lwm qhov rau lub teeb liab mus. Cov suab digital tsis zam txim rau thaum nws los txog rau clipping li no.
Headroom rau live music
Headroom kuj tseem siv tau xoob heev rau kev kaw suab paj nruag nyob rau hauv dav dav. Yog hais tias lub suab nrov heev thiab peaks ntawm 0dBFS, nws yuav clip.
Muaj 3-6 dB ntawm lub taub hau feem ntau yog txaus rau kev kaw suab paj nruag, tsuav yog koj lub kaw lus tuaj yeem tswj cov qib siab tshaj plaws yam tsis muaj clipping.
Ntau npaum li cas headroom koj yuav tsum muaj nyob rau hauv cov ntaub ntawv?
Yog tias koj tsis paub meej npaum li cas headroom tso cai, pib nrog 6 dB thiab saib seb qhov ntawd mus li cas. Yog tias koj kaw qee yam nyob ntsiag to, koj tuaj yeem txo lub taub hau mus rau 3 dB lossis tsawg dua.
Yog tias koj pom tias koj lub recorder tab tom clipping txawm tias 6 dB ntawm lub taub hau, sim nce qib nkag ntawm koj lub kaw lus kom txog thaum lub clipping nres.
xaus
Nyob rau hauv luv luv, headroom yog ib qho tseem ceeb kom tau txais cov ntaub ntawv huv si yam tsis muaj distortion. Nco ntsoov tias koj muaj lub taub hau txaus kom tsis txhob muaj teeb meem, tab sis tsis txhob hla dhau los yog koj yuav xaus nrog cov kaw lus qis heev.
Kuv yog Joost Nusselder, tus tsim ntawm Neaera thiab tus neeg lag luam cov ntsiab lus, txiv, thiab nyiam sim cov cuab yeej tshiab nrog guitar ntawm lub siab ntawm kuv txoj kev mob siab rau, thiab ua ke nrog kuv pab neeg, Kuv tau tsim cov ntsiab lus ntawm blog txij li xyoo 2020. los pab cov neeg nyeem siab ncaj nrog cov ntaub ntawv kaw lus thiab cov lus qhia guitar.
