FLAC Tester Program Needed!

don't know about a tester program, but i know one 100% foolproof way to get a real FLAC rip, buy the CD.

you'll have to wait a bit more for a useful reply.

If you see 44.1 all of the time, obvious Foobar is displaying the sample rate of the output file.

What you need is the bitate of the audio file read.

http://thewelltemperedcomputer.com/KB/BitRate.htm

However this won’t help you.

A simple example, take a 128 kbs MP3, convert it to WAV and you will have an audio file with 1411 kbs, the bitrate of a uncompressed format.

This is what more or less happens when you play an MP3, it is expanded to raw PCM (16/44.1) otherwise the sound card don’t understand but of course expanding it back to this format won’t restore what has been lost in the compression.

There are programs like AuCDTect.

It can detect obvious artifacts like high roll of but I do think it only works reliable with low bit rate MP3.

In essence this program is like us, having as much difficulties distinguishing between CD quality and high bitrate MP3.

http://thewelltemperedcomputer.com/SW/Miscellaneous.htm

Quote:

Originally Posted by J.Pocalypse 

I'd say, play the unsure flac files in foobar2000 and look at the bottom info bar. If the KHz aren't hovering around 44, then they're fakes. I have not tested this idea myself. It's just a theory that makes perfect sense to me.

That has nothing to do with the file being transcoded or not.

Detecting transcodes efficiently are actually quite tricky, but one way is to do a spectral analysis through Audacity, Audition or SoX and look for certain signs. There are guides for doing this if you google for it.

Looking for blocking and cut-off frequencies is one method: http://whatimg.com/images/54854744949039584031.gif

Quote:

Originally Posted by BenAdamson 

That link is broken.

Try this one: http://i302.photobucket.com/albums/nn108/nissepelle/54854744949039584031.gif

Ben

The good news is that there is such a program. It reads file information and can tell with 95% + accuracy if the FLAC came from a WAV/CD or MP3. It dets details from the header parts of the fiel, it doesn't analyze the audio stream.

The bad new is I can't remember what it is, and in the 4 minutes I had free to Google it for you, I couldn't find it. I also couldn't find it on my music PC at the moment.

If you can find the right key words, you will find it. "FLAC MP3 media information" doesn't find it. :(

Have you tried "Spectro"? It works for mp3 and flac.

This question keeps getting asked over and over again...... use the search.

Quote:

Originally Posted by Dreaming Of A Better ... 

don't know about a tester program, but i know one 100% foolproof way to get a real FLAC rip, buy the CD.

 

you'll have to wait a bit more for a useful reply.

That was THE WORST reply I've ever had the displeasure of reading on ANY FORUM  on ANY SUBJECT in the last 10 years.

Quote:

Originally Posted by gyrodec 

Ben

 

The good news is that there is such a program. It reads file information and can tell with 95% + accuracy if the FLAC came from a WAV/CD or MP3. It dets details from the header parts of the fiel, it doesn't analyze the audio stream.

 

The bad new is I can't remember what it is, and in the 4 minutes I had free to Google it for you, I couldn't find it. I also couldn't find it on my music PC at the moment.

 

If you can find the right key words, you will find it. "FLAC MP3 media information" doesn't find it. :(

I use Flac Tester and Audio Checker.

Both work very well.