Where can I find some kind of test FLAC (or program), where the original track will be + it's the same, only compressed MP3 at different bitrates?

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roginvs2012-05-10 08:32:46

Software testing

roginvs, 2012-05-10 08:32:46

I asked myself to blindly check at what bitrate I can distinguish MP3 from lossless. You can, of course, take it and shake it yourself, but it takes a long time, and you don’t want to reinvent the wheel. Is there already something ready for this, with specially selected recordings on which you can hear codec losses? Any software that will compress everything and run a test? Or just recording with alternating compressed/uncompressed?

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6 answer(s)

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Vlad Zhivotnev, 2012-05-10
@inkvizitor68sl

Take Lyreil (Mnemoria, for starters). Distinguish around 320 kbps. Do not distinguish - I have sad news for you - either the ears are terrible, or the ears are terrible.

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roginvs, 2012-09-24
@roginvs

In foobar, there is a plug-in for the test, ABX Comparator, you can objectively understand for yourself at what bitrate the differences are heard. If you google, you can find a good article audiophilesoft.ru/publ/my/abx/11-1-0-37 .

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Eddy_Em, 2012-05-10
@Eddy_Em

And what's the problem with squeezing yourself?
The easiest way to do this is with ffmpeg.
Real-time histograms can be viewed in almost any player.
You can even compare two files in audacity.
Or you can build a complete spectrogram (at least in Octave, or look for something else).

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65520, 2012-05-10
@65520

Depends on the entry itself. There are recordings on which any person can distinguish mp3 of any bitrate from lossless - in the same place it's not just about bitrate. As for the choice of composition, I would take some good acoustic guitar recording and some very dense mix - well, some modern black / death metal, for example. On both sides, for various reasons, it is easiest to spot the difference.
In general, on decent ears, you will definitely find the difference. Another question is whether this difference is really important.
For myself, I download and rip disks only in the Apple Lossless format (you can also use FLAC - it doesn’t matter) - I see no reason to save space, that’s all. My entire music collection is 140 GB, well, I'll save on mp3s, even 100 GB, and what? I upload AAC (you can also mp3 - it doesn’t matter) versions into the player because I definitely won’t notice the difference in transport, and my player is old - there is 2 GB of space in total.

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asm0dey, 2012-05-10
@asm0dey

I can compress something for you, it’s not difficult for me and I don’t feel sorry for it.

2

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@2Nikolay2

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