[1] So no one able to answer my question with reliable sources......
[2] at the point that many songs get mastered at 24bit going down to 16bit is just making that file lossy a little part of songs will get chopped off. It also effects volume of sound but that's not it.
[3] If higher than 16bit audio file is and snake oil why don't you guys just sell all your dap, dac and etc apple lighting gender and Samsung c type dongle has arround 100db snr dnr that's already higher than 16bit dnr
[4] The main point of hifi system is to reappearence original sound that has recorded and having higher audio file makes the sound be near to original sound since digital signal isn't curve.
[5] If you look at the files that has higher than 20khz bitrate you'll be able to see spectrum that is higher than 20k and sometimes goes up to 50khz that shows there is also some sound in that range that can effect other sounds.
[6] Measurement and spectrum shows is that there is difference on resampled audio and higher bitrate audio and most simple thing to find out is simply blind testing to your self
[7] and especially for resampled audio because of resampling filter it's very easy to be audible ...
Oh dear, and again!
1. Firstly, if you're going to contradict the accepted facts/science then YOU have to provide "reliable sources", please do so. As to our reliable sources, any text book on digital audio, for example 'The Principles of Digital Audio" - Pohlmann, "Digital Audio Explained" - Nika Aldrich and many others. In the case of the double blind testing of higher than 16/44.1 (hi-rez) played back at 16/44.1, there are numerous sources but the most commonly quoted is the Mayer & Moran study published in 2007. Now it's your turn!
2. Firstly, songs are NEVER mastered "at 24bit going down to 16bit"! Songs today are mastered at 64bit (float) and from that "go down to" a 24bit version and a 16bit version. And prior to "today" (many years ago), songs were mastered either in the analogue domain or at either 32bit (float) or 48bit. Secondly, little parts of the song were NOT "chopped off", they are "dithered off" (source: "Mastering Audio ..." - Bob Katz and numerous others)! Secondly, it does NOT affect the "volume of sound" (sources: All the text books already quoted and numerous others). Lastly, how is any of this relevant? Your android device is not mastering, it's simply resampling!
3. 100dB DR is NOT higher than 16bit. If we're talking about a 16bit master version derived from a digital mastering process, then it theoretically has a dynamic range of 120dB but again this is irrelevant as virtually all digital masters at any bit depth have a dynamic range of 60dB and typically much less! And secondly, if we sell our daps, dacs, etc., what are we going to replace them with? No one makes 16bit high quality DAC chips any more, they're all at least 24bit!
4. Firstly, Hi-Fi systems cannot/do not reproduce a digital signal, they ONLY reproduce an acoustic signal (otherwise we obviously couldn't hear it) and this is derived from an analogue signal reconstructed from digital data, which IS A CURVE!!! (same sources as previously).
5. No it does NOT! It shows that there is some sound in that range but NOT that it can effect other sounds and obviously whatever is between 20kHz and 50kHz is outside of human hearing (sources: Every medical text book that deals with hearing written in about the last 100 years!).
6. The most simple and accurate thing is just to have a look at the scientific evidence but double blind testing yourself is good, if for some strange reason you doubt the scientific evidence and that's something that I and countless others have done over the course of decades. Why don't you have a look on Hydrogen Audio, which has numerous examples?
7. Again, unless you provide some reliable evidence of your own, then as your claim contradicts a wealth of reliable evidence, it cannot be viewed as anything other than a false statement by a deluded audiophile!!
G