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Topic: F4 & F3 function in EAC? (Read 3763 times) previous topic - next topic
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F4 & F3 function in EAC?

In EAC what do you gain by pressing the F4 detect gaps & F3 test gaps on silence?

Obviously it does what it says but what's the point?

I've ripped some CD's withhout pressing F4 & F3 and some with.

Cheers.

F4 & F3 function in EAC?

Reply #2 –
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In EAC what do you gain by pressing the F4 detect gaps & F3 test gaps on silence?

Obviously it does what it says but what's the point?

I've ripped some CD's withhout pressing F4 & F3 and some with.

In short: F3 and F4 are a waste of time, unless you know why you use them.

It is a common misconception that F4 would be needed for a better DAE or a CUE sheet.

What do they do? They retrieve info about the gaps. F3 looks whether the gaps are silent or not, F4 looks where the gaps start/end. So they both retrieve info, but don't do anything with that info. If you don't do anything either, then F3/F4 have had no use.

By default EAC includes all gaps in the rip, appending each gap to the previous track (which most of us will want).
Suppose you don't like that (want gaps appended to next track, or leave them out), THEN is when you need F4 (to find the gaps' positions) and you'll command EAC afterwards to append to next or leave out.
Some people want to leave out the gaps, but only if they're pure silence. Then F3 comes in use, answering your question whether the gaps are silent. If they are and you want them out, you'll use F4 to find their positions and ommand EAC to leave them out.

F4 & F3 function in EAC?

Reply #3 –
Thanks for the info. So in short I shouldn't worry about these functions to much if I'm ripping my CD's to mp3 and have no interest in the cue sheets etc.

F4 & F3 function in EAC?

Reply #4 –
If one bothers with leaving out gaps, there's an important thing to know: EAC's silence test isn't exact! In a 2 second gap there can be, say, a 1/3 second dither noise and EAC still reports 100% silence. I was very surprised when I found this out, given that it should be easy to detect non-silence gaps via at least a single non-null sample within it. Still worse, it's completely contrary to EAC philosophy.

During the last months I tend to not bother with leaving out gaps, since accuraterip is only available when appending gaps to the previous track. The database includes a lot more CDs now and I want to use it.
I know that I know nothing. But how can I then know that ?

F4 & F3 function in EAC?

Reply #5 –
Quote
It is a common misconception that F4 would be needed for a better DAE or a CUE sheet.
[a href="index.php?act=findpost&pid=319328"][{POST_SNAPBACK}][/a]


If you want to burn a CD with pregaps identical to the original disc, you need to retrieve the info.

F4 & F3 function in EAC?

Reply #6 –
Quote
Quote
It is a common misconception that F4 would be needed for a better DAE or a CUE sheet.
[a href="index.php?act=findpost&pid=319328"][{POST_SNAPBACK}][/a]


If you want to burn a CD with pregaps identical to the original disc, you need to retrieve the info.
[a href="index.php?act=findpost&pid=319345"][{POST_SNAPBACK}][/a]

When you tell EAC to make a Cue Sheet(or rip to image + Cue), then EAC always first detects the gaps, and then makes the Cue Sheet(or else it wouldn't be possible to make the Cue Sheet), and that's why pressing F4 before making a Cue Sheet isn't needed, since it would be done automatically anyway...
Also if you are ripping without a Cue Sheet, then the pregaps are still perfectly copied(exept the part after the first two seconds of the pregap of track one - if present), but they are just not marked(which only use is to display negative times between tracks on a CD players display...

-Martin.

F4 & F3 function in EAC?

Reply #7 –
Quote
if you are ripping without a Cue Sheet, then the pregaps are still perfectly copied(exept the part after the first two seconds of the pregap of track one - if present), but they are just not marked(which only use is to display negative times between tracks on a CD players display...

... display negative times, and skip the gaps when playing separate tracks or in random order

F4 & F3 function in EAC?

Reply #8 –
no, i rip my cds as there supposed to be ripped/played back, ones without gaps eac will extract without the need for gap detection two good examples of this are Universal Indicator - Innovation In The Dynamics Of Acid and C64 - Transitional Days no doubt there are other examples but these are just two cd's i can remember ripping recently.
 

F4 & F3 function in EAC?

Reply #9 –
Quote
no, i rip my cds as there supposed to be ripped/played back, ones without gaps eac will extract without the need for gap detection...

liekloo is right, you have misunderstood what he said... If playing seperate tracks or in random order, then the gaps is not suppossed to be played, but if you have ripped your tracks without a Cue Sheet, then the gaps will be played... I personally don't mind that, since i never play seperate tracks or in random order(only straight albums once at a time)...

-Martin.