Izicwangciso ze-Incoding MP3
Intshayelelo
Iifomati ye-MP3 yindlela eyaziwayo kakhulu yokulahlekelwa yomsindo esebenzayo namhlanje kwaye sele ijikeleze iminyaka engaphezu kweyishumi. Impumelelo yayo ingabangelwa kakhulu ekuhambisaneni kwayo yonke indawo. Ngaloo mpu melelo, kusekho imithetho ofuna ukuyazi ngaphambi kokudala iifayile ze-MP3. Ezi zinto zilandelayo ziza kukunika ingcamango malunga nendlela yokulungelelanisa izicwangciso zakho zokufakela ikhowudi kwiziphumo ezifanelekileyo.
Umthombo womthombo womsindo
Ukuze ukhethe ixabiso elisekhompyutheni eliphezulu kufuneka uqale uqwalasele uhlobo lomthombo womsindo. Ngokomzekelo, ukuba udibanisa ukurekhoda kwezwi eliphantsi kwi-analog tape kwaye usebenzise izicwangciso eziphezulu kakhulu zokufakela ikhowudi, oku kuya kuchitha indawo eninzi yokugcina. Ukuba unokuguqula ifayile ye- MP3 ene-bitrate eyi-96 kbps enye ibe ne-bitch 192kbps kwaye akukho phuculo oluya kubakho. Isizathu salokhu kukuba i-original yayingama-32kbps kuphela kwaye ngoko nayiphi na ephakamileyo kunoko iya kwandisa ubungakanani befayile kwaye ayiyi kuphucula isisombululo esifanelekileyo.
Nazi ezinye izicwangciso zebhitrate eziqhelekileyo ongafuna ukuzama ngazo:
- 32 kbps - Iirekhodi zezwi / analog.
- 128 ukuya ku-192 kbps - Ukuhlawula amathrekhi kwiCD.
- 192 ukuya kuma-320 kbps - Ukurekhoda imithombo yomsindo oyingxubevange (ezo ziqulethe ububanzi bemida, njengomculo weklasi ngokomzekelo).
Ukulahlekelwa nguLossy
I-MP3 format ifomati elahlekileyo kwaye iguqulela kwindlela ethile yokulahleka (kuquka enye i-MP3) ayikhuthazwa. Nangona uzama ukuguqula kwi-bitrate ephezulu, uya kulahlekelwa ngumgangatho. Kuqhelekile ukuba ushiye i-original njengokuba kunjalo, ngaphandle kokuba ufuna ukunciphisa indawo yokugcina kwaye ungacingi ukunciphisa isisombululo somsindo.
CBR kunye neVBR
I-bitrate engunaphakade (i- CBR ) kunye ne-bitrate eguquguqukayo ( VBR ) zikhetho ezimbini ongakhetha ngazo xa ufaka iifayile ze-MP3 zombini ezinamandla kunye nobuthathaka. Ngaphambi kokuba wenze isigqibo malunga nokuba usebenzisa i-CBR okanye i-VBR kufuneka uqale ucinge malunga nendlela oza kuphulaphula ngayo umsindo. I-CBR yimiqathango engagqibekanga ehambisanayo yonke iifowuni ze-MP3 kunye nezixhobo ze-hardware kodwa ayivelisi ifayile ye-MP3 ephezulu kakhulu. Ngaphandle koko, i-VBR ikhiqiza iFayile yefayile elungiselelwe ubukhulu befayili kunye nomgangatho. I-VBR isisombululo esona sisisombululo kodwa ayisoloko ihambelana ne-hardware endala kunye neefolda ezithile ze-MP3.