Tus neeg sau xov xwm yog ib tus kws tshaj lij - nws paub ua haujlwm ntawm lub microphone. Thiab yog tias lub microphones dub thiab tawv, nws paub yuav ua li cas sim lawv. Nws zoo li nws tsis cia siab tias yuav muaj dab tsi tshwm sim, tab sis los ntawm qhov zoo ntawm nws, nws nyiam nws. Technically, ob lub microphones ua haujlwm zoo kawg nkaus. :-)
Zoo, ib nrab ntawm cov kwv tij thiab ib nrab cov viv ncaus tsis muaj feem cuam tshuam, yog li nws tsis tuaj yeem suav tias yog yam phem lossis kev ua tsis ncaj ncees. Nws tsis yog qhov xav tsis thoob tias tus txiv neej laus thiab tus ntxhais, tsis muaj kev sib deev tsis tu ncua thiab yuav luag txhua hnub nyob ib puag ncig, dheev hnov zoo li kev sib deev rau ib leeg. Xav tias tus ntxhais nyiam nws (tus txiv neej ces tsis muaj lus nug), kuv xav tias lawv yuav xyaum ua tej yam zoo li no ib ntus.