IPB

Welcome Guest ( Log In | Register )

 
Reply to this topicStart new topic
File Comparison of two flac images, Using Flac fingerprint
c1c2c3
post Jul 16 2012, 22:38
Post #1





Group: Members
Posts: 13
Joined: 17-August 08
From: Germany
Member No.: 57197



Hi,

Im just checking my backup drive bit by bit against my music folder which
contains all those accurately ripped and compressed flac files.
Im using Total Commander performing this check.
Here the trouble starts.

Some files are not equal, compared bit by bit. But I cant tell
if its just some metadata I changed.
Im sure flac fingerprint could do the job, but Im running on W764bit
and I cant get flac frontend to work on my machine.

Is there a versatile and easy to perform way to compare two
flac files if the audio data is identical (without using flac frontend)?

Thanks in advance
c1c2c3
Go to the top of the page
+Quote Post
lvqcl
post Jul 16 2012, 22:40
Post #2





Group: Developer
Posts: 3439
Joined: 2-December 07
Member No.: 49183



foobar2000 + foo_bitcompare plugin.
Go to the top of the page
+Quote Post
c1c2c3
post Jul 16 2012, 22:46
Post #3





Group: Members
Posts: 13
Joined: 17-August 08
From: Germany
Member No.: 57197



Thanks for your fast reply. Should have read the documentation
of foo bitcompare. Shame on me and big hug to you.

This post has been edited by c1c2c3: Jul 16 2012, 22:46
Go to the top of the page
+Quote Post
c1c2c3
post Jul 16 2012, 23:31
Post #4





Group: Members
Posts: 13
Joined: 17-August 08
From: Germany
Member No.: 57197



Just to complete this thread: Worked like a charm as soon as
I figured out to mark all tracks to get the menu "compare" inside utils.
Go to the top of the page
+Quote Post
greynol
post Jul 16 2012, 23:58
Post #5





Group: Super Moderator
Posts: 10256
Joined: 1-April 04
From: San Francisco
Member No.: 13167



Probably would have been faster and just as effective to have simply just run a test decode with flac without it actually writing to your drive (flac -t). Maybe this is too late for the OP, but at least future readers might see this as a more worthwhile (or not) alternative.

This post has been edited by greynol: Jul 17 2012, 00:04


--------------------
Your eyes cannot hear.
Go to the top of the page
+Quote Post
c1c2c3
post Jul 31 2012, 11:38
Post #6





Group: Members
Posts: 13
Joined: 17-August 08
From: Germany
Member No.: 57197



Would a test decode always prove that the musical information of
a backup file is the same as the original?
Go to the top of the page
+Quote Post
Kohlrabi
post Jul 31 2012, 12:23
Post #7





Group: Super Moderator
Posts: 1114
Joined: 12-March 05
From: Kiel, Germany
Member No.: 20561



If you decode two lossless encodes of the same source file, then yes, the decoded stream is (and has to be, that's what lossless means!) identical, unless either one of the encoders or the decoder is broken in some way.

This post has been edited by Kohlrabi: Jul 31 2012, 12:23


--------------------
It's only audiophile if it's inconvenient.
Go to the top of the page
+Quote Post
greynol
post Jul 31 2012, 13:16
Post #8





Group: Super Moderator
Posts: 10256
Joined: 1-April 04
From: San Francisco
Member No.: 13167



QUOTE (c1c2c3 @ Jul 31 2012, 03:38) *
Would a test decode always prove that the musical information of a backup file is the same as the original?

If you're concerned about audio data changing from copying a flac to a different location and/or altering its metadata then yes, a test decode does indeed prove that it didn't happen.


--------------------
Your eyes cannot hear.
Go to the top of the page
+Quote Post
spoon
post Jul 31 2012, 14:28
Post #9


dBpowerAMP developer


Group: Developer (Donating)
Posts: 2757
Joined: 24-March 02
Member No.: 1615



As long as the file is not held in a cache, ie you copy File >> some drive, then run decode on said file, it might come from a memory cache not the drive, to be sure you would have to do a full restart of the computer.


--------------------
Spoon http://www.dbpoweramp.com
Go to the top of the page
+Quote Post
greynol
post Jul 31 2012, 15:23
Post #10





Group: Super Moderator
Posts: 10256
Joined: 1-April 04
From: San Francisco
Member No.: 13167



Based on the information in the original post, possible caching issues won't apply.


--------------------
Your eyes cannot hear.
Go to the top of the page
+Quote Post

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



RSS Lo-Fi Version Time is now: 26th November 2014 - 19:44