LG announces its own high resolution music service for LG smartphones
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- AnonD-294887
- 3uZ
- 14 Aug 2015
terminal, 14 Aug 2015Man, hats off for your great explanation. Now, I understand... moreThanks, and you're very welcome. I've learned a lot about those things by following the topics that come up now and then on hydrogenaud.io, an audio forum that has a goal of keeping things objective and scientifically correct. Most of the links I linked actually come from those topics.
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- terminal
- 7jV
- 14 Aug 2015
AnonD-294887, 13 Aug 2015Human hearing goes up to 22kHz at best, and turns progressi... moreMan, hats off for your great explanation. Now, I understand this oems just grab our money for some fake gimmicks.
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- AnonD-294887
- nfK
- 14 Aug 2015
AnonD-269277, 13 Aug 2015what you're talking about are frequencies. bit depth (in th... moreSorry, no. What bit depth affects is dynamic range. As the Tom's Hardware article mentions, nowadays music is so awfully compressed (dynamically! not lossy), you can't tell 24 from 16-bit. The only place where that matters is mastering (studio) stage, because of mixing and dithering.
Speaking of mastering, some people think they hear a difference between 24 and 16-bit, but what they are really hearing is different mastering - hi-res releases sometimes lay off on the Loudness War and actually keep more dynamic range than the sd-res releases. Not always though, and I often saw hi-res releases that were butchered even worse than their sd-res counterparts.
The sad truth is, nowadays' music can't even fill 8 bit in some cases. Don't believe me? Try a blind test!
http://www.audiocheck.net/blindtests_16vs8bit.php
http://www.audiocheck.net/blindtests_16vs8bit_NeilYoung.php
That site also has a lot of other self-tests where you can confront the truth about your hearing - if you don't fall into denial. I was especially surprised I couldn't tell 8bit from 16bit in those samples.
P.S.: http://xiph.org/~xiphmont/demo/neil-young.html
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- AnonD-269277
- vGU
- 13 Aug 2015
AnonD-294887, 13 Aug 2015Human hearing goes up to 22kHz at best, and turns progressi... morewhat you're talking about are frequencies. bit depth (in the post) directly affects bit rate of the audio. which in turn means that audio files will be more "clear". there will be less 'distortion'. that said, standard 16 bit depth with audio sampled at 44100 hertz on 2 channels can have a theortical bit rate of 700kbps. that is quite high. it is thus more practical to optimize 16 bit audio simply because devices that can take full advantage of 24 bit audio are not common. not to mention the increased filesize that high resolution audio brings with it. also im not sure that any lg phone can drive headphones that will be able to take advantage of these files, so you'll need an external amp. i dont have a clue about how good the onboard DAC is but it cant be good enough for hi-res. all in all, this new service is useless for all but a very specific demographic.
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- AnonD-294887
- nfK
- 13 Aug 2015
Therion, 13 Aug 2015Yes if you hear it from your potato phone no difference but... moreHuman hearing goes up to 22kHz at best, and turns progressively worse the older you get. No matter how good your speakers are, you can't hear what you can't hear. Personally, I did the test and I cap out at ~17kHz. That's with avoiding loud places (clubs, concerts etc).
The reason why the music is sampled at 44.1kHz is because of the Nyquist-Shannon theorem [1], the rest is marketing people fall for because they expect to get more for a hefty price. Same goes for audio equipment with prices in the multi-thousand region. There was a presentation from a speaker engineer some time ago [2] where he compared different speakers and "pricier" didn't necessarily meant "better". Then there is also a test Tom's Hardware did to compare an onboard Realtek chip vs. a few dedicated sound cards [3]
[1] https://en.wikipedia.org/wiki/Nyquist%E2%80%93Shannon_sampling_theorem
[2] https://www.youtube.com/watch?v=zrpUDuUtxPM
[3] http://www.tomshardware.co.uk/high-end-pc-audio,review-32894.html
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- AnonD-129208
- 3aQ
- 13 Aug 2015
To start LG should focus on put some high quality front facing stereo speaker on the phones .
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- Therion
- 0Tu
- 13 Aug 2015
AnonD-294887, 13 Aug 2015No human can hear the difference. The only cases where you ... moreYes if you hear it from your potato phone no difference but what if you conect it to a home cinema or to some good speakers?
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- AnonD-294887
- nfK
- 13 Aug 2015
No human can hear the difference. The only cases where you can is either because
- the hi-res music was mastered differently
- the device plays it back imperfectly (making ultrasound frequencies leak into the listenable spectrum)
- the user expects it to sound better aka placebo effect, and doesn't do a proper double or ABX blind test