Skip to main content

Notice

Please note that most of the software linked on this forum is likely to be safe to use. If you are unsure, feel free to ask in the relevant topics, or send a private message to an administrator or moderator. To help curb the problems of false positives, or in the event that you do find actual malware, you can contribute through the article linked here.
Topic: Best Audiochecker program? (Read 8548 times) previous topic - next topic
0 Members and 1 Guest are viewing this topic.

Re: Best Audiochecker program?

Reply #25
Are there really any known algorithmic giveaways available to give a good conclusion, except comparing to the encoders' known lowpasses?

(One should also be careful about selected counterexamples, as you cannot really surely tell that it isn't part of what the artist deliberately sent off. But we knew that, eh?)
High Voltage socket-nose-avatar

Re: Best Audiochecker program?

Reply #26
M4A file, Bitrate 61 kbps. Cut-off at 20.5 kHz.

Code: [Select]
Writing application : fhgaac v03.02.16;VBR=2
How are you setting up the cutoff frequency ? With Winamp ? Because I can't find such an option in any fhgaacenc version.

Re: Best Audiochecker program?

Reply #27
How are you setting up the cutoff frequency ? With Winamp ? Because I can't find such an option in any fhgaacenc version.
I used the foobar front end with auto settings. When the preset quality is low enough it will switch to SBR mode and render beautiful spectrograms, provided the source audio files have enough high frequency content.

 

Re: Best Audiochecker program?

Reply #28
(One should also be careful about selected counterexamples, as you cannot really surely tell that it isn't part of what the artist deliberately sent off. But we knew that, eh?)
Yeah, for example some "noise reduction" plugins in DAWs, when used with sources like noisy analog tapes. Depends on user settings and how the plugins are designed, it is possible to create gradual lowpass with spectral discontinuity, not only they can fool checking software, the resulting files can even look similar to some lossy codecs in spectrograms.

Some vintage synthesizers like the Roland SC/JV series used 32kHz synth engines and they will also result in obvious lowpass in spectrograms.

Re: Best Audiochecker program?

Reply #29
I used the foobar front end with auto settings. When the preset quality is low enough it will switch to SBR mode and render beautiful spectrograms, provided the source audio files have enough high frequency content.
Thanks for the information, I'll do some testing :)

Re: Best Audiochecker program?

Reply #30
Since I'm using foobar portable, do you know by any chance where I should copy the fhgaacenc folder ? Or should I just drop all of the needed files in the Encoders folder ?
I am using portable version too. Just copy the highlighted files to the encoder folder.
X

Re: Best Audiochecker program?

Reply #31
Yep, I've figured it out, the reason why I've removed this question from my post.
Thanks for the answer, it might help someone else one day ;)


Re: Best Audiochecker program?

Reply #33
(One should also be careful about selected counterexamples, as you cannot really surely tell that it isn't part of what the artist deliberately sent off. But we knew that, eh?)
Yeah, for example some "noise reduction" plugins in DAWs, when used with sources like noisy analog tapes. Depends on user settings and how the plugins are designed, it is possible to create gradual lowpass with spectral discontinuity, not only they can fool checking software, the resulting files can even look similar to some lossy codecs in spectrograms.

Some vintage synthesizers like the Roland SC/JV series used 32kHz synth engines and they will also result in obvious lowpass in spectrograms.
Like this:
X

Re: Best Audiochecker program?

Reply #34
Hi everyone, Does Using foobar2000, and is 'warning pannel' which tell you 'corrupted file etc..' is enough to sort 'corrupted folders, and' clean folders'?

My matter is, recently my mind was away, so my external hard drive, which have sometimes been disconenected because of usb cable.

By copying mass audio  folders it goes sometimes in 'errors'.

Usually I have good strategy and solves issues like this, 'manually' and the strategy includes a final result that's makes safe and sur that dedicate folders are 'safe' I mean no corrupted files in these.
But today i'm a bit lost.

Re: Best Audiochecker program?

Reply #35
Hi everyone, Does Using foobar2000, and is 'warning pannel' which tell you 'corrupted file etc..' is enough to sort 'corrupted folders, and' clean folders'?

Not quite sure what you want. If you use foo_verifier, the "verify integrity" function will give you a list of errors and warnings.

Good thing:
* You can click the status or warnings column header, get all corrupted on top, mark them (using shift+arrow), right-click, move (or copy!) them with the move entire folder content option to, say, "D:\suspicious\%path%", recreating full path on a different drive.

Not so good thing:
* Warnings may be nothing special, or they may be serious - and especially for the mp3 format, serious issues may be hidden in a haystack of minor issues. That goes if reported and decoded lengths are slightly off - which was common with certain software. I had such a thing when a mobo dropped the drive mid-writing, and mp3 files just got different audio. Tough thing to find those that were really corrupted.

Possibly even worse:
* If the file is so corrupted that fb2k cannot even make sense of it, you won't even have it loaded into the playlist. That is, you can have a folder with one corrupted file, but where fb2k won't recognize it as corrupted because it won't even recognize it as an audio file.
But, with a recent version that shows errors in library scanning ... you might be able to pick up more.
High Voltage socket-nose-avatar

Re: Best Audiochecker program?

Reply #36
Hi everyone, Does Using foobar2000, and is 'warning pannel' which tell you 'corrupted file etc..' is enough to sort 'corrupted folders, and' clean folders'?

Not quite sure what you want. If you use foo_verifier, the "verify integrity" function will give you a list of errors and warnings.

Good thing:
* You can click the status or warnings column header, get all corrupted on top, mark them (using shift+arrow), right-click, move (or copy!) them with the move entire folder content option to, say, "D:\suspicious\%path%", recreating full path on a different drive.

Not so good thing:
* Warnings may be nothing special, or they may be serious - and especially for the mp3 format, serious issues may be hidden in a haystack of minor issues. That goes if reported and decoded lengths are slightly off - which was common with certain software. I had such a thing when a mobo dropped the drive mid-writing, and mp3 files just got different audio. Tough thing to find those that were really corrupted.

Possibly even worse:
* If the file is so corrupted that fb2k cannot even make sense of it, you won't even have it loaded into the playlist. That is, you can have a folder with one corrupted file, but where fb2k won't recognize it as corrupted because it won't even recognize it as an audio file.
But, with a recent version that shows errors in library scanning ... you might be able to pick up more.


Yes thanks.
I wrote a long text here and was deleted.

I' ll look.
But I imagine very well the global thing.

That's why I do manually everything.

But there it's the mess.

My mind was away. Makes me worry.

A lot of 'corrupted files'.

I feel like what time. I will need to sort everything.

The only thing ?

Most of tracks in my foobar2k playlist with "?" are corrupted.
Then there is half of the track playing.


I'm really in fear of an infinite sorting folders.
Plus some folders on hdd 'said' safe's are also there.

The mess.

Don't look further, wi'm a bit in the sound, and computer.

There are so many ways in sound, and 'digital'.. .. Difficult to find a solid software, too mucb different uses for individuals ? Even if a lot of parameters are useless.

The mess.

Re: Best Audiochecker program?

Reply #37
Well, what do you have? Backup?
High Voltage socket-nose-avatar

 
SimplePortal 1.0.0 RC1 © 2008-2021