Do tag changes affects AR verification?, (lossless/flac files) |
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Do tag changes affects AR verification?, (lossless/flac files) |
 Jul 1 2010, 06:46
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#1
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Group: Members Posts: 38 Joined: 24-March 10 Member No.: 79261  |
Somewhere (in HA) I read that changing tags may* affect the AR verification let say using CueTools.
Since I donīt know how AR calculates the checksums, I wonder if thatīs correct. Does it use the internals flac checksums? Also what about if you add ID3v1-2 to flac files? and what about the tags added by ReplyGain? Thanks. |
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Jul 1 2010, 08:07
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#2
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Group: Members Posts: 944 Joined: 6-September 04 Member No.: 16817 |
Like you I don't really know. But I don't believe it'll have any effect. After all, it would be useless as a system if it included tag data as they will change wildly from user to user with all the different possible combinations, album art etc.
I'd guess it's just done on the audio data. |
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Jul 1 2010, 08:45
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#3
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 Group: Super Moderator Posts: 9261 Joined: 1-April 04 Member No.: 13167 |
Tag changes that do not alter the audio data will not affect the AccurateRip hash value for that data.
CUETools provides the option to store hash data as a tag, though any verification, if implemented properly, would always generate a hash value from the raw audio and compare with that written in the tag (or better yet, against the actual record downloaded from AccurateRip). This is much like how lossless files are verified, though the AR hash is completely different from the hashes used by lossless codecs. -------------------- Everything sounds the same until it is proven otherwise.
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Jul 2 2010, 07:41
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#4
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Group: Members Posts: 38 Joined: 24-March 10 Member No.: 79261 |
Thanks for the answers.
QUOTE (greynol @ Jul 1 2010, 08:45)  Tag changes that do not alter the audio data will not affect the AccurateRip hash value for that data. just curious which tag changes alter audio data? |
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Jul 2 2010, 13:42
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#5
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Group: Members Posts: 3080 Joined: 1-September 05 From: SE Pennsylvania Member No.: 24233 |
QUOTE (Wooops @ Jul 2 2010, 02:41) just curious which tag changes alter audio data? I think the bottom line is that tag changes should NOT alter the audio data. If there are any that do (and I'm not sure there are any) then those are to be avoided. |
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Jul 2 2010, 18:27
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#6
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Group: Super Moderator Posts: 9261 Joined: 1-April 04 Member No.: 13167 |
I know of none. If it were a problem then it would be caused by the software adding the tag and not the tag itself. If there is a tag or type tag that would somehow break a file, then a tag editor should not be applying it.
-------------------- Everything sounds the same until it is proven otherwise.
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Lo-Fi Version | Time is now: 21st May 2013 - 08:21 |
