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High Playback Sampling Frequencies, Why are they becoming popular?
icstm
post Feb 17 2012, 16:25
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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?
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Bartholomew MacG...
post Feb 19 2012, 15:14
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I'm still confused as to why studios use really high sampling frequencies. I have a vague understanding of why higher bit depths might be needed for adujsting levels, but I don't get why they need higher sampling rates.
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Ethan Winer
post Feb 20 2012, 20:01
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QUOTE (Bartholomew MacGruber @ Feb 19 2012, 09:14) *
I'm still confused as to why studios use really high sampling frequencies. I have a vague understanding of why higher bit depths might be needed for adujsting levels, but I don't get why they need higher sampling rates.


Because even professional recording engineers can be subject to the same magical thinking and lack of scientific rigor we commonly see among audiophiles. It's just as easy to start a religious war about this stuff in a recording forum as it is in a hi-fi forum.

--Ethan


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Woodinville
post Feb 21 2012, 18:12
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QUOTE (Ethan Winer @ Feb 20 2012, 11:01) *
QUOTE (Bartholomew MacGruber @ Feb 19 2012, 09:14) *
I'm still confused as to why studios use really high sampling frequencies. I have a vague understanding of why higher bit depths might be needed for adujsting levels, but I don't get why they need higher sampling rates.


Because even professional recording engineers can be subject to the same magical thinking and lack of scientific rigor we commonly see among audiophiles. It's just as easy to start a religious war about this stuff in a recording forum as it is in a hi-fi forum.

--Ethan


Actually, there are occasionally (note the qualification) reasons to be working at a higher sampling rate. If you must do nonlinear processing for some reason, a higher sampling rate helps ensure that aliasing of harmonics does not happen. This kind of processing is, unfortunately, sometimes necessary. While it is possible to increase the sampling rate for that plugin, how many times do you want to run your signal through the 20kHz antialiasing filters? Perhaps better to run it once at the end? Of course, a plugin that accepts lower sampling rate should do upsampling if it must, etc.

Completely dismissing the idea is not appropriate. Just mostly dismissing it is reasonable. smile.gif

Having said that, indeed, there is a lot of magical thinking in some of the production folks.


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Ethan Winer
post Feb 21 2012, 19:24
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QUOTE (Woodinville @ Feb 21 2012, 12:12) *
Actually, there are occasionally (note the qualification) reasons to be working at a higher sampling rate. If you must do nonlinear processing for some reason, a higher sampling rate helps ensure that aliasing of harmonics does not happen.


Sure, and de-clicking software can work better when LPs are recorded at a higher sample rate, because the click rise-times are faster than the music.

QUOTE
Just mostly dismissing it is reasonable. smile.gif
Having said that, indeed, there is a lot of magical thinking in some of the production folks.


Exactly, I see this all the time at the womb and gearslutz. laugh.gif

--Ethan


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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


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