I recently posted the results of my online test of which I got 580 submittals. Visit my site to check the results (https://cdvsmp3.wordpress.com/cd-vs-itunes-plus-blind-test-results/)

In case you want to know how AAC 256k VBR (iTunes standard) compares to CD, y may try the blind test (http://cdvsmp3.wordpress.com)

Please help me on my survey on CD vs iTunes plus by taking the blind test: http://cdvsmp3.wordpress.com. Thanks!

I would not be so sure about it... Try this blind test: http://cdvsmp3.wordpress.com.

You don't have to blame you equipment or your ears. Take a look at the results of my null test in "Why I think HD audio is irrelevant". A quite different thing is detecting differences between lossless and lossy formats. I have a blind test that compares CD to AAC 256, in case you want to test...

By the way, I am engaged in personal project to see how good people are at telling CD quality and iTunes plus apart. Would you be kind enough to have a look at it? cdvsmp3.wordpress.com

That's interesting! I'll see if I can try something similar... just for the fun of it. We are not missing much, that's for sure.

Thank you! The output was quite of a surprise for me too! How will HD audio fans manage to hide this kind of evidence?  

There is an interesting thing you could do to compare a song bought from iTunes and the same song ripped and converted to iTunes plus using iTunes application. You'll need an audio editor like Adobe Audition, for example: Load the original (purchased) track and the ripped track. Invert one of...

Take a look at this experiment I did with an HD track. It certainly is revealing.   1. Pick an HD track that is sampled at, say, 96k/24bit. 2. Convert it to 44.1/16bit PCM (.wav) 3. Upsample the .wav file to the original 96k. 4. Invert one of the waves, say, the converted and upsampled one...

I've made a new shorter version of my blind test, in case you would like to try it. cdvsmp3.wordpress.com. I would appreciate suggestions to improve it, too!

I am conducting a survey on the topic of lossy vs lossless files. It may interest you guys. I recommend the last version of my blind test (the shortest and easiest), but there are also previous tests comparing HD vs ACC 256 and CD vs AAC 256. Please have a look and help me in my personal...

You can download HD tracks in ALAC format (which is Apple Lossless). You may import them to your iTunes library and they will play in your iPod (but I don't think you will any difference at all). No need for any other applications.   _____________________ cdvsmp3.wordpress.com

Thanks for the article. I share the same opinion about HD audio.

I am struggling to get the point of HD audio...  Take a look at this spectrogram of an HD track I recently bought... (and this is only one of several more I've seen) spectrogram Excuse my ignorance if I am wrong, but doesn't it just look like inaudible high frequency noise, up there, in...