Guqula i-CDA ibe yi-MP3

Yize ama-CD alalelwayo engasasebenzi njengemfashini eminyakeni embalwa eyedlule ngenxa yemboni yedijithali eqale ukusebenza, njengamapulatifomu we-iTunes, futhi ikakhulukazi i-Spotify emnandi, kepha ama-CDA asazungeza futhi ayaqhubeka nokumakethwa. Ngakho-ke, uma unenye yalawa madiski futhi ufuna ukulahla okuqukethwe futhi ukwenze ku-MP3 ngendlela elula, kule ndatshana ye-LxA sichaza ukuthi kanjani guqula i-CDA ibe yi-MP3 igxathu negxathu.

I-CDA yadalwa nguPhilips no-Sony ngawo-80 ukugcina umsindo ngefomethi yedijithali uma kuqhathaniswa namateyipu amakhasethi wangaphambili. Yimpumelelo futhi igcinwe kuze kube namuhla, kepha iqiniso ukuthi uma sizohambisa umculo siye kwisidlali seMP3 noma siwulalele kusuka kusidlali somsindo ku-distro yethu, njll., Imvamisa akusebenzi ukusebenzisa iCD ngenxa yenani elilinganiselwe lezingoma noma ngenxa nje yokuthi ifomethi ye-WAV yalawa madiski ayisekelwa. Yingakho kungcono ukuyiguqulela kufomethi yendawo yonke futhi engasindi efana ne-MP3.

Ifomathi WAV noma igagasi Kube ukusungulwa kweMicrosoft ne-IBM futhi kuyifomethi yendabuko evame ukusetshenziswa kulolu hlobo lwe-CD-As, evumela ukugcina umsindo wekhwalithi ephezulu wongoti. Inkinga ukuthi isebenzisa isikhala esiningi kakhulu, inciphisa inani lezingoma ezingagcinwa kwi-CD. Isibonelo, kuyo yonke iminithi yomsindo ku-WAV kudliwe isikhala esingu-10MB, okuyimbudane ngokuqhathaniswa namanye amafomethi. Futhi banomkhawulo wamahora angama-6.6 ubude, ngoba amafayela we-WAV amakhulu kuno-4GB awakwazi ukugcinwa.

Uma senza izibalo, kwi-CD engaba ngu-750MB umthamo futhi uma sine-albhamu enezingoma ezigcina isilinganiso semizuzu emi-3 iyinye, singagcina kuphela izingoma ezingama-20 noma ezingama-25, futhi lokho ngaphandle kokubala ikhefu phakathi kwamathrekhi nawo hlala ngamamegabhayithi ambalwa. Esikhundleni salokho, nge-MP3 sinekhwalithi ephezulu kakhulu futhi akukho ukulahleka kepha singaba nosayizi ofika kathathu ku-WAV sisebenzisa i-11bit / s. Lokho kusho ukuthi inani lezingoma ezingangena kwi-CD lingakhuphukela emakhulwini amaningana wazo.

I-MP3 yasungulwa eJalimane ngu UKarlheinz Brandenburg Ngokwengxenye enkulu, wayengumqondisi we-Fraunhofer IIS Institute.Ukuze kuzuzwe lezi zinzuzo, i-MP3 isebenzisa ukulahleka kokucindezelwa kwe-algorithm okubizwa nge-MPEG-1 Audio Layer III noma i-MPEG-2 Audio Layer III yesimanje, okuyenza icishe ibe yindinganiso imboni yomsindo kanye nomsindo wokusakazwa kwenethiwekhi.

Khipha i-CDA kwi-MP3 usebenzisa i-Asunder:

Sizokwenza ngaphandle kokusebenzisa ikhonsoli nemiyalo, kepha kusuka kusixhumi esibonakalayo esilula sibonga uhlelo lwe-Asunder. Ngayo ungaklebhula konke okuqukethwe noma ukhethe kuphela amathrekhi ofuna ukuwalahla eqenjini lakho. Elinye iphakheji obekufanele futhi ukuthi ulifakile liyizinyonga, elizosetshenziselwa ukufaka umsindo ogciniwe ngefomethi esiyifunayo, kulokhu i-MP3. Ngokufakwa kwala mapakeji, ungawalanda ngqo kusuka ku- iwebhusayithi esemthethweni noma usebenzise ukuphumula kwe-distro yakho ukuyifaka kalula nabaphathi bephakeji ...

Lapho sesifakiwe lawo mapakeji, ungavula i-Asunder, futhi nge i-CD yomsindo efakiwe Kumfundi we-optical, ungayikhetha esikrinini sayo esikhulu. Uma uya kokuncamelayo ungakhetha amasethingi ahlukahlukene, njengefomethi ofuna i-CDA idluliselwe kuyo, phakathi kwalawo atholakala nge-OGG, MP3, ne-FLAC, njll. Esimweni sethu sikhetha i-MP3 siyayemukela bese sibuyela esikrinini esikhulu singasesha i-CDDB futhi sikhiphe amathrekhi.

Ungabakhetha bonke noma usebenzise labo obafunayo, futhi uma ucindezela Inkinobho yokukhipha wonke azolahlwa futhi aguqulwe abe yifomethi ekhethiwe. Ngendlela, kusixhumi esibonakalayo uzobona ukuthi ezinye izici zingashintshwa, njengegama lamathrekhi, usuku, isihloko, njll. Iqiniso ukuthi alinayo imfihlakalo eningi noma ubunzima, kepha yisihloko ukuthi abantu babuza okuningi ezinkundleni nasezizindeni. Incazelo ilula kangangokuba ngicabanga ukuthi akukufanele ukusho okuningi, noma kunjalo uma ungabaza, shiya imibono yakho ...

Guqula i-CDA ibe yi-MP3 kusuka kukhonsoli:

Kepha uma ukhetha ukusebenzisa i- imiyalo yokuguqulwa kusebenza kahle, ungawasebenzisela amathuluzi womugqa wokuyala. Uma ukhumbula, esigabeni esedlule ngikhulume ngephakeji elibizwa ngokuthi yi-lame, kahle-ke, uma ulifakile, ungaguqula i-.wav ibe yi-.mp3 ngendlela elula ngokwenza umyalo:

lame canción.wav canción.mp3

Kepha yile ndlela esihamba ngayo ngamunye ngamunye, uma okuthandayo ukulahla konke okuqukethwe yi-CD bese ukukuguqula kube yi-MP3 ngendlela ezenzakalelayo, faka amaphakheji:

• i-id3 ne-id3v2: abahleli bamathegi.
• Izinyonga: ukudala amafayela we-MP3 njengoba sibonile.
• cdparanoia: ukuklebhula amathrekhi kusuka ku-CD
• cddiscid: yedatha yediski ebonakalayo.
• abcde: isifaki khodi seCD.

Lapho sesiwafakile lawo maphakeji, singakha iskripthi ukuguqula ngokuzenzakalela onke amathrekhi alalelwayo abe yi-MP3. Kopisha bese unamathisela ikhodi elandelayo kusihleli sakho sombhalo osithandayo bese usigcina njenge-cda-to-mp3.sh:

<pre class="bbcode_code">#!/bin/bash
#Especificar el encoder para la conversión:
MP3ENCODERSYNTAX=lame 

#Seleccionamos el path
LAME=lame

#Añadimos las opciones de lame necesarias:
LAMEOPTS='--preset extreme' 

#Especificamos el formato de salida, en este caso MP3
OUTPUTTYPE="mp3"

#Seleccionamos el rippeador para extraer las pistas del CDA
CDROMREADERSYNTAX=cdparanoia            
                                     
#Localización para el programa anterior y sus opciones:
CDPARANOIA=cdparanoia  
CDPARANOIAOPTS="--never-skip=40"

#Programa de identificación del CD:       
CDDISCID=cd-discid            
                               
#Localización de la base de datos (donde se almacenan): 
OUTPUTDIR="$HOME/musica/"               

#Damos formato a las etiquetas de las canciones:
OUTPUTFORMAT='${OUTPUT}/${ARTISTFILE}-${ALBUMFILE}/${TRACKNUM}.${TRACKFILE}'
VAOUTPUTFORMAT='${OUTPUT}/Various-${ALBUMFILE}/${TRACKNUM}.${ARTISTFILE}-${TRACKFILE}'

#Decidimos cómo van a ser etiquetadas:
ONETRACKOUTPUTFORMAT='${OUTPUT}/${ARTISTFILE}-${ALBUMFILE}/${ALBUMFILE}'
VAONETRACKOUTPUTFORMAT='${OUTPUT}/Various-${ALBUMFILE}/${ALBUMFILE}'

#Ponemos espacios en los nombres de las canciones: 
mungefilename ()
{
  echo "$@" | sed s,:,-,g | tr / _ | tr -d \'\"\?\[:cntrl:\]
}

#Extra para mejorar el script como correr varios encoders a la vez, etc. 
MAXPROCS=2                              
PADTRACKS=y                             
EXTRAVERBOSE=y  

#Expulsa el CD una vez ha finalizado.                         
EJECTCD=y</pre>

Ukuyisebenzisa, kufakwe i-CDA kudrayivu, kufanele nje senze okulandelayo:

chmod +x cda-to-mp3.sh

./cda-to-mp3.sh

Ungakhohlwa ukushiya ifayela lakho le- uphawula ngokungabaza neziphakamiso ...