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Topic: Need explanation about cue sheet (Read 5011 times) previous topic - next topic
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Need explanation about cue sheet

I'm a little bit confused about this thing about cue sheets, that i would like to be explained:
practically in a cue file the "INDEX 01" is the only one who is suppose to be always there, and that's clear for me, 1 thing i don't understand about it is about "INDEX 00" "PREGAP"
1st of all, is pregap ONLY concerning about the silence between the tracks, right?
and about index 00 i'm a bit confused, i make an example with a cue i have:
Code: [Select]
REM GENRE Hip-Hop
REM DATE 1996
REM DISCID AD0B100C
REM COMMENT "ExactAudioCopy v0.95b4"
CATALOG 0000000000000
PERFORMER "Various"
TITLE "Detroit Hip-Hop: Volume One"
FILE "01 - Boom! - Temple of Flame.wav" WAVE
  TRACK 01 AUDIO
    TITLE "Temple of Flame"
    PERFORMER "Boom!"
    INDEX 01 00:00:00
FILE "02 - Proof - Wuch U No .wav" WAVE
  TRACK 02 AUDIO
    TITLE "Wuch U No?"
    PERFORMER "Proof"
    INDEX 01 00:00:00
  [b]TRACK 03 AUDIO
    TITLE "It Wasn't Me... (It Was the Glock)"
    PERFORMER "Children of the Dust"
    INDEX 00 03:27:61[/b]
FILE "03 - Children of the Dust - It Wasn't Me... (It Was the Glock).wav" WAVE
    INDEX 01 00:00:00
  [b]TRACK 04 AUDIO
    TITLE "On the Run"
    PERFORMER "7th Nation from the Lost Souls of Motown"
    INDEX 00 03:57:37
FILE "04 - 7th Nation from the Lost Souls of Motown - On the Run.wav" WAVE[/b]
    INDEX 01 00:00:00
  [b]TRACK 05 AUDIO
    TITLE "Bandigin' MC's"
    PERFORMER "Dynasty Family"
    INDEX 00 03:39:27
FILE "05 - Dynasty Family - Bandigin' MC's.wav" WAVE[/b]
  [b]  INDEX 01 00:00:00
  TRACK 06 AUDIO
    TITLE "Lay It Down"
    PERFORMER "Mr. Scott"
    INDEX 00 02:19:29
FILE "06 - Mr. Scott - Lay It Down.wav" WAVE[/b]
    INDEX 01 00:00:00
  TRACK 07 AUDIO
    TITLE "Get That Booty Up"
    PERFORMER "Raw"
    INDEX 00 04:54:69
FILE "07 - Raw - Get That Booty Up.wav" WAVE
    INDEX 01 00:00:00
  TRACK 08 AUDIO
    TITLE "Da Science"
    PERFORMER "Proof"
    INDEX 00 04:18:07
FILE "08 - Proof - Da Science.wav" WAVE
    INDEX 01 00:00:00
  TRACK 09 AUDIO
    TITLE "Corporate World"
    PERFORMER "Boom!"
    INDEX 00 03:45:41
FILE "09 - Boom! - Corporate World.wav" WAVE
    INDEX 01 00:00:00
  TRACK 10 AUDIO
    TITLE "Need Money?"
    PERFORMER "Mr. Scott"
    INDEX 00 05:07:31
FILE "10 - Mr. Scott - Need Money .wav" WAVE
    INDEX 01 00:00:00
  TRACK 11 AUDIO
    TITLE "Mic Skils 101"
    PERFORMER "Children of the Dust"
    INDEX 00 05:39:26
FILE "11 - Children of the Dust - Mic Skils 101.wav" WAVE
    INDEX 01 00:00:00
  TRACK 12 AUDIO
    TITLE "Wuch U No? (Acapella)"
    PERFORMER "Proof"
    INDEX 00 03:57:37
FILE "12 - Proof - Wuch U No  (Acapella).wav" WAVE
    INDEX 01 00:00:00
so basically, in a cue sheet of a cd of separated tracks, what is the index 00 supposed to do? what's the function in the cuesheet for it?
i can't understand, in a cuesheet with timings for a single audio file i believe to have understood that the index 02, 03, 04, etc. are meant to divide the tracks
so basically i'm a bit confused about INDEX 00, 01, 02, 03 ETC. and need a confirmation about the PREGAP voice in the cuesheet
EDIT:
PREGAP: silence before a track (or beetween two tracks?), the silence is not part of the ripped audio file but it's useful just for writing a copy of the cd using the cue file right?
INDEX 01: is it always supposed to be 00:00:00?
INDEX 00, INDEX 02, INDEX 03 ETC. what do they mean?

Need explanation about cue sheet

Reply #2 –
When you're playing a CD and you seek to a particular track, you're jumping to that track's index 01 point, the start of the main part of the track. But you might notice on some CDs that if you seek backwards from there a little bit, or just let a track play to the end, the CD player's display advances to the next track before reaching that index 01 point, and the timer starts counting up from a negative number to 0:00. That's the index 00 portion (a.k.a. the "gap", not necessarily silent). Even though it seems to be at the end of the preceding track, it's really part of the next track. Not all tracks will have an index 00, and even if they do, you might not see it if you're using a CD drive in a computer instead of a real CD player.

When you extract audio from a CD with a program like Exact Audio Copy, you normally get the tracks as separate files, with the index 00 portions (if any) tacked on to the end of the previous track's audio. You can override that, but it's not a good idea because you want it so that when you play the track, it's just like when you jumped to the track normally; the beginning of the file is the index 01 point.

If you're burning the audio back to CD, you need a way to tell the burner where the index 00 portions are in the files. That's what INDEX 00 is for in the cue sheet.

PREGAP in a cue sheet is an alternative to INDEX 00; it's a way of telling the burner to insert a totally silent index-00 portion where there is none currently. It's not normally necessary when making a copy of a CD. It's more useful for specifying the amount of between-track silence in a custom compilation of trimmed audio.

If, instead of extracting all the audio tracks as separate files, you put them all into one big file, the usefulness of the cue sheet becomes more apparent. Now your INDEX 01 values are going to be non-zero, because they refer to different spots in the same file.