"FLAC: Audio File Passed Verification" - what about when it doesn't pass?

[krafty]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

Sorry to revive this thread, but I am here to confirm there is a problem with this option, with FLAC.
I converted 25 CDs yesterday to ALAC and not one single file had "Audio File Passed Verification" missing in the log.
As for FLAC today (level 5), I ripped about 20 CDs and I did recognize a couple of tracks here and then not returning "Audio File Passed Verification".

Perhaps because FLAC was too fast? ALAC was slower?

I am on Windows 10 and dBpoweramp R17.4. I have no antivirus on my system (just Windows Defender).

If it's of any interest I can make a couple of screenshots.

[garym]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

The only situation I can think of that has *potential* to interfere with the ripping process is if the same computer you're ripping on has software that is trying to do things with the tracks you're ripping (e.g., a music library automatically indexing new audio tracks, or an Anti-virus program trying to do something with these tracks, etc.).

I also rip to my local C:\ drive and then later move the files to my music server (across the network). I could rip directly to the network server, but (1) I want to avoid any glitches that could occur simply because of network transfer while ripping (an unlikely problem) and (2) I want to review my newly ripped files to make sure I'm happy with tags, art, maybe rerun ReplayGain to treat multidisk CD as one album for "album RG" purposes, etc. Once I'm happy, I move the files over to my music Server.

[Jailhouse]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

That's interesting... So every time you rip you leave your computer well alone and don't do anything on it while the rip is in progress? If that's the case, may I ask why? Have you heard of it causing problems? Just curious...

I'm usually going over upcoming discs, checking for possible tagging gotchas or issues with scanning covers, while keeping one eye on the rip in progress to see if I've screwed up a tag or a track isn't Secure or if weirdness such as having to re-rip 25,000 frames has popped up. Also, I tend to like to concentrate on one task at a time when possible. (In this case, rip all the discs, then scan and edit all the covers.) That's just the way I like to work, so it hadn't occurred to me to worry that multitasking while ripping might be a problem. I haven't seen anything to that effect.

[garym]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

I surf the web, do email, etc. when I'm ripping. I've never seen this cause a problem with my files. I don't use the multi-rip. I rip to FLAC only.

[Max Dread]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

I have not used other applications when ripping is in process

That's interesting... So every time you rip you leave your computer well alone and don't do anything on it while the rip is in progress? If that's the case, may I ask why? Have you heard of it causing problems? Just curious...

[Jailhouse]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

But it is strange that this is happening on my system, but not to anyone else who has contributed to the thread... Do your rips have the log entry missing (presuming you use FLAC that is)?

I turned on "Verify Written Audio" after this thread started, and had confirmations on all ripped tracks. I have since turned it off as being unnecessary.

It's a bit too early to say this conclusively, but what I have noticed is a pattern whereby when I leave the PC alone while ripping, all of the logs are there at the end. If I use the PC whilst ripping (for things like using the internet, write word docs; basic stuff like that) that's when there seems to be tracks with missing logs.

I have not used other applications when ripping is in process, nor do I use Multi Encoder, so I suppose the combination could be a cause. However, your tracks rip without errors regardless and you can test them using a method known to be solid. All that "Verify Written Audio" is doing for you (or, rather, to you) is unsettling your mind. I that you have decided to untick it, and I applaud the decision.

[Max Dread]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

Spoon has stated the option does not work correctly. Un-tick the option and periodically run Test Conversion on your flac library.

I thought he said it does not work as people expect it to, rather than it not working correctly.

Anyhow, I'll just untick it then, ignore what it says in the manual, and use Test Conversion from time to time to check newer rips.

It definitely seems to be the case that if I leave my PC alone during the rip, all tracks get the verified notification log. But if I use my PC during the rip, some tracks have the log missing. That seems to be a set pattern, and to my mind at least would suggest that something in my set up is affecting the log entry; which in turn would suggest something wrong with my system and/or a bug.

Nevertheless, I'll leave it there, untick the "Verify" option, run Test Conversion from time to time, and put my faith in you guys who have been kind enough to put up with my insistence and share your time and knowledge. Much appreciated!

[mville]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

Maybe other people are not having the same problem and it is therefore irrelevant to them?

If you guys or any other users were coming on here to say that the same thing was happening and so we were all in the same boat, then I'd be fine and dandy to ignore.

Spoon has stated the option does not work correctly. Un-tick the option and periodically run Test Conversion on your flac library.

[Max Dread]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

Maybe other people don't care at all about that missing message? Maybe other people trust in AccurateRip? Maybe other people trust in the results of the test conversion? Maybe other people trust in Spoon's statements?


Dat Ei

Maybe other people are not having the same problem and it is therefore irrelevant to them?

If you guys or any other users were coming on here to say that the same thing was happening and so we were all in the same boat, then I'd be fine and dandy to ignore.

Am I missing something in the manual section on this function? It says "once compression is complete the compressed audio will be read and compared to the source, verifying the compression is without error". Is that incorrect?

[Dat Ei]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

But it is strange that this is happening on my system, but not to anyone else who has contributed to the thread... Do your rips have the log entry missing (presuming you use FLAC that is)? I do wonder why this should only be happening to me if it is a more general thing.

Maybe other people don't care at all about that missing message? Maybe other people trust in AccurateRip? Maybe other people trust in the results of the test conversion? Maybe other people trust in Spoon's statements?


Dat Ei

[Max Dread]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

Thanks Jailhouse for the info and the reassurance. It is nice to know I'm not the only person out there who stresses over these minor things. I guess I'll just do as you say and carry on regardless.

But it is strange that this is happening on my system, but not to anyone else who has contributed to the thread... Do your rips have the log entry missing (presuming you use FLAC that is)? I do wonder why this should only be happening to me if it is a more general thing.

And I still cannot reconcile Spoon's explanations with the entry from the manual (quoted above in post *56). Perhaps someone can explain how the two are saying the same thing, and I might then be able to rest a little more easy

EDIT: It's a bit too early to say this conclusively, but what I have noticed is a pattern whereby when I leave the PC alone while ripping, all of the logs are there at the end. If I use the PC whilst ripping (for things like using the internet, write word docs; basic stuff like that) that's when there seems to be tracks with missing logs.

[Jailhouse]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

But if it is not doing the function we both thought it was doing, what function IS it doing?

When there is no report that a file passed verification, it could well be because the function has not run at all. Whether it runs or it doesn't, though, it has no effect in terms of ripping results. The fact that your files lacking verification reports have all passed Test Conversion checks is proof.

As someone who has missed many meals and much sleep over the years while working hours on unresolved problems, I understand that you want an answer. And if this behavior had a negative impact on my rips, I'd be demanding one myself. But it's merely a random lack of information that ultimately means nothing to us as users, whether we know or don't know why it happens.

My advice: Untick "Verify Written Audio" and run Test Conversion on your files as you see fit.

[Max Dread]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

The help file / manual has this to say:

"After Encoding Verify Written Audio - once compression is complete the compressed audio will be read and compared to the source, verifying the compression is without error (hard disk, or very unlikely codec induced)."

[Dat Ei]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

Developers write sometimes code to check and verify their own assumptions and their own code. In this case that code does not work as the developers thought it would work. So the code to check the main code is faulty or behaves faulty because of the Windows caching mechanisms. Forget about those message. If you like to check your audio files, do as Spoon said and run a separate check routine after the ripping.


Dat Ei

[Max Dread]

Re: "FLAC: Audio File Passed Verification" - what about when it doesn't pass?

I see what you're saying. But if it is not doing the function we both thought it was doing, what function IS it doing? That's what I'm interested to know. Although saying that I did not even have a guess as to what function it might be doing!

So it would be good to know....