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Topic: Question about speed when ripping with EAC (Read 706 times) previous topic - next topic
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Question about speed when ripping with EAC

Hello. I’m ripping with EAC, secure mode and test and copy with a usb connected external drive to my laptop. One strange thing that I noted while ripping is that the speed changes a lot between different rips (cds in good conditions, without major problems). If I have to rip three cds, I turn on my laptop and open eac, then with the first cd that I rip the speed is between 3.5x and 5x and it takes me about 30 minutes to test and copy a cd that is about 40 min. long. Then, with the second and third cd the speed is reduced to 1.3x or little more, but usually well under 2.0x. It’s always the same, the first cd takes one third of the time compared to the others. Even detecting gaps and creating a cue sheet is faster. I didn’t change the settings, both error recovery quality and extraction and compression priority are set to “high”. There’s no difference between cds that are in the accuraterip database or not, the only difference is between the first one and the others. Thanks.

Re: Question about speed when ripping with EAC

Reply #1
Your main problem is that you are using secure mode. This is very hard on the drive. Trust accurate rip results in burst mode.

Re: Question about speed when ripping with EAC

Reply #2
“If your drive caches audio data, it may be more efficient to use Burst mode in conjunction with AccurateRip and generate test CRCs for tracks that cannot be verified as accurate. Tracks ripped in Burst mode that are verified with AccurateRip or generate identical read and test CRCs are every bit as secure as if they were ripped in Secure mode.

http://wiki.hydrogenaud.io/index.php?title=EAC_Lossless_Backup#Drive_Options

Furthermore, as I told you already, CUE Tools will be able to fix errors provided correction information for the disc is in the database and the amount of corruption is not too large.
Is 24-bit/192kHz good enough for your lo-fi vinyl, or do you need 32/384?

Re: Question about speed when ripping with EAC

Reply #3
“If your drive caches audio data, it may be more efficient to use Burst mode in conjunction with AccurateRip and generate test CRCs for tracks that cannot be verified as accurate. Tracks ripped in Burst mode that are verified with AccurateRip or generate identical read and test CRCs are every bit as secure as if they were ripped in Secure mode.

http://wiki.hydrogenaud.io/index.php?title=EAC_Lossless_Backup#Drive_Options

Furthermore, as I told you already, CUE Tools will be able to fix errors provided correction information for the disc is in the database and the amount of corruption is not too large.

Thanks! I’ll try with burst mode, at least for the cds that are in the accuraterip database. Just one more question: defeat audio cache should be yes or no?

Re: Question about speed when ripping with EAC

Reply #4
http://wiki.hydrogenaud.io/index.php?title=EAC_Drive_Options#Drive_caches_audio_data
You should read the whole section but here's a quote
Quote
        If the "Detect Read Features..." function reports "Caching : Yes", it is important that you enable the cache flushing routine by checking the "Drive caches audio data" box.

        If the "Detect Read Features..." function reports "Caching : No", it is not necessary to enable the flushing routine. Checking the "Drive caches audio data" box with drives that are reported by EAC as not caching will not improve EAC's accuracy. It won't improve EAC's ability to detect errors nor EAC's ability to correct them. What it will do however, is reduce your ripping speed and shorten the life of your drive.
korth

Re: Question about speed when ripping with EAC

Reply #5
I have another question about EAC, it's related to the CUE sheet creation but I'm writing here to avoid creating another topic. I read the wiki and everything but still I don't understand how this works. I always use create CUE sheet -> Multiple WAV Files With Gaps (Noncompliant) after detecting the gaps but at the end my files look different one from another. Some show only index00, some also index01 for each track.  Anyway, they doesn't look like the example from the hydrogenaudio wiki. Here I copy two examples of two metal cds that I ripped recently without changing anything from the settings:

Spoiler (click to show/hide)

and another one:

Spoiler (click to show/hide)

I don't know what's wrong about them, why my CUE sheets look so different from the examples I found here and there (show less infos usually).

Re: Question about speed when ripping with EAC

Reply #6
I don't know what's wrong about them
Nothing is wrong with them.
Is 24-bit/192kHz good enough for your lo-fi vinyl, or do you need 32/384?

Re: Question about speed when ripping with EAC

Reply #7
Thanks. Another question. I unistalled eac a few times and also deleted accuraterip from appdata -> roaming because I wasn’t sure it was properly configured. Anyway when I reinstalled eac (with the accuraterip plugin, of course) the window for configuring accuraterip never appeared. When a cd is know there is the usual accuraterip symbol down right in eac and seems to work properly. My question is: is it possible that accuraterip is configured wrongly or if it works then it means that it is ok? I don’t remember how many cds I used for the configuration and in which conditions they were...

Re: Question about speed when ripping with EAC

Reply #8
That information is retained in the registry.

Why are you worried about something so trivial?
Is 24-bit/192kHz good enough for your lo-fi vinyl, or do you need 32/384?

 

Re: Question about speed when ripping with EAC

Reply #9
That information is retained in the registry.

Why are you worried about something so trivial?

Because I’m ripping my entire collection and I hope to do it only once...

Re: Question about speed when ripping with EAC

Reply #10
When I use a new drive for the first time do I have to configure accuraterip again?

Re: Question about speed when ripping with EAC

Reply #11
AccurateRip will offer to configure the new drive when you insert a Key disc.
korth

Re: Question about speed when ripping with EAC

Reply #12
Thanks!

Re: Question about speed when ripping with EAC

Reply #13
That information is retained in the registry.

Why are you worried about something so trivial?

Because I’m ripping my entire collection and I hope to do it only once...
Offsets between pressings can be in the thousands of samples.  Besides that, the reference being used for calibration isn’t even exact.

What do you fear the problem will be if Accuraterip somehow managed to get the drive offset wrong?
Is 24-bit/192kHz good enough for your lo-fi vinyl, or do you need 32/384?

 
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