Ok, whats the difference between a DVD player with
24bit 192Khz & another with 24bit 96Khz...???
I've seen cheap DVD players use 192Khz, and expensive ones use 96Khz... but I've also seen Expensive ones use 192Khz... argh....
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Ok, whats the difference between a DVD player with
24bit 192Khz & another with 24bit 96Khz...???
I've seen cheap DVD players use 192Khz, and expensive ones use 96Khz... but I've also seen Expensive ones use 192Khz... argh....
"xxKHZ" is the maximum sampling rate (of the digital audio) that it can decode. Generally, the higher the better. But it depends on the quality of the DAC.
i believe that 192 is needed for sacd/dvda but i might be wrong. as with everything hifi thou, a bigger number doesnt mean it'll sound better.
No only if you're buying decent quality equipment. It doesn't really apply if you're buying supermarket players :p
TBH I have my doubts that the human ear can tell the difference between 24/96 and 24/192. 96KHz sampling rate is high enough to have a fairly smooth rolloff filter from about 35KHz up, and I doubt we're capable of hearing harmonics that high.
Rich :¬)
Supposedly, the human ear can't tell the difference in sound quality with bitrates and frequencies of 128kbps and 22Khz and above. I do disagree with this however, because in my personal experience I have been able to tell the difference between 128kbps and 192kbps, and 192kbps and 320kbps. The same with frequencies - there is a noticable difference between a track recorded with 22khz and 44khz. CD standard is 48Khz iirc.
your mixed up there theo. your thinking of khz not kbps. theres no tests that show the human ear cant detect difference of mp3 quality
so... is 24bit 96Khz any good?
http://www.bolton.ac.uk/staff/dmm1/d...gitalAudio.ppt
I think I covered both, iirc, 5lab :)
Hmm, well I'm a bit of a deaf git and I'd probably struggle to tell the difference between 128 and 192 in a double blind test, but who knows.Quote:
Originally posted by Theo
Supposedly, the human ear can't tell the difference in sound quality with bitrates and frequencies of 128kbps and 22Khz and above. I do disagree with this however, because in my personal experience I have been able to tell the difference between 128kbps and 192kbps, and 192kbps and 320kbps. The same with frequencies - there is a noticable difference between a track recorded with 22khz and 44khz. CD standard is 48Khz iirc.
In any case, there's a reason why 96KHz might sound better than 44.1KHz sampling (which is the CD's sample rate, DAT is 48KHz). The human ear can in theory hear sounds up to 20KHz; some people claim that the ear can detect harmonics above this frequency while not being able to hear them on their own; I've never seen any hard evidence for this. Now a 44.1KHz sampler can reproduce sounds up to 22.05KHz, which should in theory be enough. Unfortunately though, any frequency above 22.05 entering the ADC will cause aliasing, so the recorders have a 'Brick Wall' filter with a very sharp rolloff above 20KHz. The trouble is that this kind of filter causes resonance effects or something like that, which compromises the sound quality.
If you have a 96KHz sampling rate, you can have a filter with a smooth rolloff starting at maybe 35-40KHz, well above the threshold of human hearing, and with no nasty resonance effects. 192KHz really doesn't provide any additional benefit to justify it's 100% data increase, as far as I can see.
As for going from 16 to 24 bit sampling....I'm not convinced of the benefits of that either, but that's only a 50% BW increase so never mind;).
If anyone who really knows about audio wants to pick holes in that: please do:). I've probably made some mistakes (in terminology if nothing else) and it could probably be explained better.
Rich :¬)
so whats better to have???
96Khz or 192KHz?
192KHz.
argh! ... even some £600 Marantz units only have 96Khz!!
Don't worry about it mate. If you buy a DVD-A player it should be good enough to cope with anything you throw at it.
Rich :¬)
Maybe I'm wrong... but have a look at the powerpoint presentation I posted. I don't think I'm wrong, though... I'm pretty sure I'm not.
Nah im just looking at the Marantz DV4300 and its a 96Khz 24bit machine... and its like £300+ ... and doesnt even play SACD/DVD-AQuote:
If you buy a DVD-A player it should be good enough to cope with anything you throw at it.