IPB

Welcome Guest ( Log In | Register )

High Playback Sampling Frequencies, Why are they becoming popular?
icstm
post Feb 17 2012, 16:25
Post #1





Group: Members
Posts: 121
Joined: 25-January 12
Member No.: 96698



OK, at the risk of sounding completely stupid?

Why do people listen to music with high sampling frequencies?
What is 88k+ providing them?
I understand why you might record at a high sampling rate, but why keep that for playback?

Looking through the FAQ, there are threads from 2003 that point out that the sampling frequency and bit-dept work in tandem. So the quantisation error of 16bit at 44.1k has the opportunity to be corrected sooner at a higher sampling rate, so in some ways is like a dithering pattern.

However given noise introduced in the analogue systems required to listen to music, a SNR within a 16bit signal of ~96dB seems pretty good.

So assuming that speakers struggle to produce the sounds that a 192k sampling frequency allow (eg 96kHz) and assuming that 16bits were sufficient when compared to the analogue equipment in the system, what have I missed in these high sampling playback formats?
Go to the top of the page
+Quote Post
 
Start new topic
Replies
icstm
post Feb 22 2012, 15:13
Post #2





Group: Members
Posts: 121
Joined: 25-January 12
Member No.: 96698



QUOTE (xnor @ Feb 20 2012, 16:30) *
QUOTE (icstm @ Feb 20 2012, 17:19) *
In fact, before I sample to 44.1, I could process my signal at the higher sampling rate to not include frequencies above 22k.

Which is called a low pass filter that acts as an anti-aliasing filter.

My understanding is that an anti-aliasing filter is applied prior to digitisation, to remove the ambiguity that arises from sampling.
What I am suggesting within the digital domain. In the digital (sampled) domain, the probablems that others have pointed to around anologue low pass filters do not apply.

QUOTE (greynol @ Feb 20 2012, 16:33) *
Right, I see that we were talking about removal of greater than Nyquist in the digital domain prior to reconstruction. Still lots of concern about anti-aliasing/anti-imaging, but not a lot of objective data demonstrating that it's been a problem over the last decade if not longer?
I agree, which was the reason for my OP. I agree that DAC use oversampling (as the post below yours points to) but that does not take away from the fact that 16bits per channel of information sampled at 44.1kHz is a suitable way to store music and is not improved upon by higher formats. Nothing posted here has changed my beleive and some posts have provided some evidence to support this position.
Go to the top of the page
+Quote Post

Posts in this topic
- icstm   High Playback Sampling Frequencies   Feb 17 2012, 16:25
- - Prince Of All Saiyans   I'm not totally sure, but recalling my ever-so...   Feb 17 2012, 16:37
|- - dhromed   QUOTE (Prince Of All Saiyans @ Feb 17 2012, 1...   Feb 17 2012, 16:55
|- - greynol   QUOTE (Prince Of All Saiyans @ Feb 17 2012, 0...   Feb 17 2012, 17:19
||- - Prince Of All Saiyans   QUOTE (greynol @ Feb 17 2012, 17:19) QUOT...   Feb 17 2012, 17:53
|- - pawelq   QUOTE (Prince Of All Saiyans @ Feb 17 2012, 1...   Feb 17 2012, 19:05
|- - icstm   QUOTE (pawelq @ Feb 17 2012, 18:05) 10 or...   Feb 18 2012, 00:27
- - dhromed   QUOTE (icstm @ Feb 17 2012, 16:25) what h...   Feb 17 2012, 16:51
- - pdq   People sell music with higher sampling rates for t...   Feb 17 2012, 16:52
- - Prince Of All Saiyans   Exactly. That's why you see headphones with fr...   Feb 17 2012, 16:56
- - Bartholomew MacGruber   I'm still confused as to why studios use reall...   Feb 19 2012, 15:14
|- - saratoga   QUOTE (Bartholomew MacGruber @ Feb 19 2012, 0...   Feb 19 2012, 23:12
||- - Walter_Odington   For producing sound/music then higher bit depths a...   Feb 20 2012, 00:52
||- - saratoga   QUOTE (Walter_Odington @ Feb 19 2012, 18...   Feb 20 2012, 01:08
|||- - Walter_Odington   QUOTE (saratoga @ Feb 20 2012, 00:08) I d...   Feb 20 2012, 01:33
|||- - greynol   QUOTE (Walter_Odington @ Feb 19 2012, 16...   Feb 20 2012, 01:48
|||- - saratoga   QUOTE (Walter_Odington @ Feb 19 2012, 19...   Feb 20 2012, 02:06
||- - Ron Jones   QUOTE (Walter_Odington @ Feb 19 2012, 16...   Feb 20 2012, 03:37
|- - Ethan Winer   QUOTE (Bartholomew MacGruber @ Feb 19 2012, 0...   Feb 20 2012, 20:01
|- - Ron Jones   QUOTE (Ethan Winer @ Feb 20 2012, 12:01) ...   Feb 20 2012, 20:46
||- - knutinh   QUOTE (Ron Jones @ Feb 20 2012, 21:46) De...   Feb 20 2012, 21:24
||- - Arnold B. Krueger   QUOTE (Ron Jones @ Feb 20 2012, 14:46) QU...   Feb 21 2012, 13:43
||- - Ethan Winer   QUOTE (Ron Jones @ Feb 20 2012, 14:46) De...   Feb 23 2012, 20:04
||- - Walter_Odington   Loved food does generally taste better. Now define...   Feb 23 2012, 21:27
||- - rick.hughes   QUOTE (Ethan Winer @ Feb 23 2012, 14:04) ...   Feb 24 2012, 14:45
|- - saratoga   QUOTE (Ethan Winer @ Feb 20 2012, 14:01) ...   Feb 20 2012, 22:23
|- - Woodinville   QUOTE (Ethan Winer @ Feb 20 2012, 11:01) ...   Feb 21 2012, 18:12
|- - Ethan Winer   QUOTE (Woodinville @ Feb 21 2012, 12:12) ...   Feb 21 2012, 19:24
- - Walter_Odington   I see I have walked in to the lions den! I...   Feb 20 2012, 02:34
|- - greynol   QUOTE (Walter_Odington @ Feb 19 2012, 17...   Feb 20 2012, 02:49
|- - saratoga   QUOTE (Walter_Odington @ Feb 19 2012, 20...   Feb 20 2012, 02:52
- - Walter_Odington   I think I've misunderestimated the amount of e...   Feb 20 2012, 02:56
|- - saratoga   QUOTE (Walter_Odington @ Feb 19 2012, 20...   Feb 20 2012, 03:09
- - Walter_Odington   Saratoga, just seen your latest. I appreciate I ne...   Feb 20 2012, 03:09
|- - saratoga   QUOTE (Walter_Odington @ Feb 19 2012, 21...   Feb 20 2012, 03:22
|- - IgorC   QUOTE (saratoga @ Feb 19 2012, 23:22) The...   Feb 20 2012, 03:50
|- - saratoga   QUOTE (IgorC @ Feb 19 2012, 21:50) QUOTE ...   Feb 20 2012, 05:59
|- - Walter_Odington   QUOTE (saratoga @ Feb 20 2012, 04:59) QUO...   Feb 23 2012, 06:37
|- - saratoga   QUOTE (Walter_Odington @ Feb 23 2012, 00...   Feb 23 2012, 07:27
- - Walter_Odington   Your right that my understanding is limited given ...   Feb 20 2012, 04:53
- - wakibaki   Just as an aside, bit depths and sampling rates ar...   Feb 20 2012, 05:14
|- - saratoga   QUOTE (wakibaki @ Feb 19 2012, 23:14) The...   Feb 20 2012, 06:09
||- - knutinh   QUOTE (saratoga @ Feb 20 2012, 07:09) QUO...   Feb 20 2012, 08:34
|- - Arnold B. Krueger   QUOTE (wakibaki @ Feb 19 2012, 23:14) The...   Feb 21 2012, 13:51
|- - Woodinville   QUOTE (Arnold B. Krueger @ Feb 21 2012, 04...   Feb 21 2012, 18:14
|- - wakibaki   QUOTE (Arnold B. Krueger @ Feb 21 2012, 12...   Feb 22 2012, 02:57
|- - saratoga   QUOTE (wakibaki @ Feb 21 2012, 20:57) I l...   Feb 22 2012, 03:54
|- - wakibaki   QUOTE (saratoga @ Feb 22 2012, 02:54) No ...   Feb 22 2012, 04:44
||- - knutinh   QUOTE (wakibaki @ Feb 22 2012, 05:44) I u...   Feb 22 2012, 07:59
|- - Ethan Winer   QUOTE (saratoga @ Feb 21 2012, 21:54) No ...   Feb 22 2012, 18:42
|- - db1989   QUOTE (Ethan Winer @ Feb 22 2012, 17:42) ...   Feb 22 2012, 18:50
- - icstm   As I wrote the OP, I am going to wade in here ...   Feb 20 2012, 11:32
- - zaentzpantz   QUOTE (icstm @ Feb 17 2012, 15:25) OK, at...   Feb 20 2012, 12:02
|- - Arnold B. Krueger   QUOTE (zaentzpantz @ Feb 20 2012, 06:02) ...   Feb 20 2012, 14:06
|- - icstm   QUOTE (zaentzpantz @ Feb 20 2012, 11:02) ...   Feb 20 2012, 14:43
- - 2Bdecided   People are selling music in high sample rates and ...   Feb 20 2012, 12:21
|- - knutinh   QUOTE (2Bdecided @ Feb 20 2012, 13:21) .....   Feb 20 2012, 15:17
|- - IgorC   QUOTE (knutinh @ Feb 20 2012, 11:17) QUOT...   Feb 20 2012, 18:20
- - WernerO   QUOTE (zaentzpantz @ Feb 20 2012, 12:02) ...   Feb 20 2012, 15:22
|- - greynol   Have we conveniently forgotten that CD players com...   Feb 20 2012, 17:05
|- - Arnold B. Krueger   QUOTE (greynol @ Feb 20 2012, 11:05) Have...   Feb 20 2012, 18:19
- - icstm   QUOTE (greynol @ Feb 20 2012, 16:05) Have...   Feb 20 2012, 17:19
|- - saratoga   QUOTE (icstm @ Feb 20 2012, 11:19) QUOTE ...   Feb 20 2012, 17:35
- - xnor   QUOTE (icstm @ Feb 20 2012, 17:19) In fac...   Feb 20 2012, 17:30
- - greynol   Right, I see that we were talking about removal of...   Feb 20 2012, 17:33
- - icstm   QUOTE (xnor @ Feb 20 2012, 16:30) QUOTE (...   Feb 22 2012, 15:13
|- - wakibaki   QUOTE (icstm @ Feb 22 2012, 14:13) ...the...   Feb 22 2012, 15:49
- - xnor   QUOTE (icstm @ Feb 22 2012, 15:13) My und...   Feb 22 2012, 15:41
- - icstm   [In response to the above post:] That is what I wa...   Feb 23 2012, 11:00
- - greynol   Let's keep this on-topic, please.   Feb 23 2012, 22:17
- - Prince Of All Saiyans   Magical thinking at its best... http://www.musica...   Feb 24 2012, 17:10
|- - 2Bdecided   QUOTE (Prince Of All Saiyans @ Feb 24 2012, 1...   Feb 24 2012, 18:34
|- - Ethan Winer   ^^^ LOL at this in particular: "a new 66 bit...   Feb 24 2012, 18:36
- - pdq   It's funny, the rest of their specs seem reaso...   Feb 24 2012, 18:45
- - icstm   We now have an ANSWER!!   Mar 7 2012, 15:21


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



RSS Lo-Fi Version Time is now: 16th April 2014 - 06:06