Why 24bit/48kHz/96kHz/, If 16bit/44.1kHz is good enough? |
Why 24bit/48kHz/96kHz/, If 16bit/44.1kHz is good enough? |
 Dec 29 2005, 13:45
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 Group: Members Posts: 287 Joined: 8-January 02 Member No.: 959  |
Yes, I have searched the forum.
Yes, maybe I am dumb. But it seems I cannot find the answer. Why do we need 24bit/48kHz/96kHz/192kHz if 16bit/44.1kHz is good enough? Are there any situations that 16bit/44.1kHz simply cannot satisfy? In other words, is there any real need for the higher bit depth and sampling rate? Thanks for answering. This post has been edited by William: Dec 29 2005, 13:47 |
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Dec 29 2005, 14:09
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Group: Members Posts: 287 Joined: 8-January 02 Member No.: 959 |
I heard someone saying that increasing the sampling rate improves the SNR. I simply don't get it. It would be grateful if someone can enlighten me on this as well.
Thank you. This post has been edited by William: Dec 29 2005, 14:10 |
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Dec 29 2005, 14:13
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 Server Admin Group: Admin Posts: 4808 Joined: 24-September 01 Member No.: 13 |
QUOTE (William @ Dec 29 2005, 03:09 PM) I heard someone saying that increasing the sampling rate improves the SNR. I simply don't get it. It would be grateful if someone can enlighten me on this as well. Thank you.  Normally, improving sampling rate improves bandwidth, not SNR. SNR is improved by increasing bit depth. Noise shaping allows trading bandwidth for effective SNR. The question is why one would need a SNR of >96dB or a bandwidth of over 22kHz for end user playback. This post has been edited by Garf: Dec 29 2005, 14:13 |
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Dec 29 2005, 14:22
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#4
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Group: Members Posts: 287 Joined: 8-January 02 Member No.: 959 |
QUOTE (Garf @ Dec 29 2005, 01:13 PM) Normally, improving sampling rate improves bandwidth, not SNR. SNR is improved by increasing bit depth. Noise shaping allows trading bandwidth for effective SNR. This is exactly what I am wondering... What I learnt is that, in frequency domain, the higher the sampling rate, the larger the bandwidth, and the farther away between the base band and its images.. And I see nothing related to SNR by improving sampling rate. Would you please give me more information on noise shaping? QUOTE (Garf @ Dec 29 2005, 01:13 PM) The question is why one would need a SNR of >96dB or a bandwidth of over 22kHz for end user playback. Then why DVD audio uses 96kHz? This is something I always wonder. Thank you. |
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Dec 29 2005, 14:45
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#5
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Server Admin Group: Admin Posts: 4808 Joined: 24-September 01 Member No.: 13 |
QUOTE (William @ Dec 29 2005, 03:22 PM) Would you please give me more information on noise shaping? Use the search function. |
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William Why 24bit/48kHz/96kHz/ Dec 29 2005, 13:45
Lyx QUOTE (William @ Dec 29 2005, 01:45 PM)Why do... Dec 29 2005, 13:53
krabapple QUOTE (Lyx @ Dec 29 2005, 07:53 AM)QUOTE (Wil... Jan 6 2006, 20:04 bizangoin I totally agree with you all. Increasing sample ra... Dec 29 2005, 14:32 William I am sorry. Thanks. Dec 29 2005, 14:59 singaiya QUOTE (William @ Dec 29 2005, 04:45 AM)Why do... Dec 29 2005, 18:44 bug80 QUOTE (singaiya @ Dec 29 2005, 07:44 PM)I hav... Dec 29 2005, 22:16 rosshmusic I agree that it makes no difference to end users..... Dec 29 2005, 21:32 Garf QUOTE (rosshmusic @ Dec 29 2005, 10:32 PM)I a... Dec 29 2005, 21:46 listen I had a thread here: http://www.hydrogenaudio.org/... Dec 29 2005, 22:24 rosshmusic QUOTE (Garf @ Dec 29 2005, 04:46 PM)QUOTE (ro... Dec 29 2005, 22:55 Garf QUOTE (rosshmusic @ Dec 29 2005, 11:55 PM)htt... Dec 29 2005, 23:58 rosshmusic QUOTE (Garf @ Dec 29 2005, 06:58 PM)QUOTE (ro... Dec 30 2005, 02:59 bug80 QUOTE (rosshmusic @ Dec 30 2005, 03:59 AM)whe... Dec 30 2005, 13:54 krabapple QUOTE (Garf @ Dec 29 2005, 03:46 PM)QUOTE (ro... Jan 6 2006, 20:10 Tool462 ok, i'm a newb so don't give me some slack... Dec 29 2005, 22:50 Garf QUOTE (Tool462 @ Dec 29 2005, 11:50 PM)ok, i... Dec 30 2005, 00:01 Revliskciuq I have to step out and disagree that there is no a... Dec 30 2005, 03:11 Garf QUOTE (Revliskciuq @ Dec 30 2005, 04:11 AM)I ... Dec 30 2005, 13:59 jmvalin QUOTE (Garf @ Dec 30 2005, 09:59 PM)Practise ... Dec 31 2005, 16:22 Garf QUOTE (jmvalin @ Dec 31 2005, 05:22 PM)Actual... Dec 31 2005, 16:31 WmAx QUOTE (jmvalin @ Dec 31 2005, 11:22 AM)but I... Dec 31 2005, 16:33 Shade[ST] QUOTE (WmAx @ Dec 31 2005, 09:33 AM)Just to p... Dec 31 2005, 19:25 WmAx QUOTE (Shade[ST),Dec 31 2005, 02:25 PM]QUOTE ... Dec 31 2005, 20:52 enry2k First: What about ensuring extremely controlled li... Jan 6 2006, 01:08 Pio2001 QUOTE (William @ Dec 30 2005, 05:03 AM)And wh... Jan 6 2006, 06:48 krabapple QUOTE (enry2k @ Jan 5 2006, 07:08 PM)First: W... Jan 6 2006, 20:27 enry2k
Thank you for quoting the thread, it is really i... Jan 8 2006, 20:36 crimsontide QUOTE (Revliskciuq @ Dec 29 2005, 08:11 PM)I ... Mar 13 2006, 14:36 Cyaneyes QUOTE (crimsontide @ Mar 13 2006, 08:36 AM)I ... Mar 13 2006, 15:55 crimsontide QUOTE (Cyaneyes @ Mar 13 2006, 08:55 AM)QUOTE... Mar 13 2006, 16:49 Societal Eclipse QUOTE (crimsontide @ Mar 13 2006, 09:36 AM)An... Mar 13 2006, 17:40 William OK, so here are some more technical questions I fo... Dec 30 2005, 04:03 probedb QUOTE (William @ Dec 30 2005, 04:03 AM)1) The... Jan 5 2006, 14:28 boombaard so, on a slightly different note, would the 24/96 ... Dec 30 2005, 14:24 Garf QUOTE (boombaard @ Dec 30 2005, 03:24 PM)so, ... Dec 30 2005, 14:25 boombaard QUOTE (Garf @ Dec 30 2005, 02:25 PM)QUOTE (bo... Dec 30 2005, 14:37 Garf QUOTE (boombaard @ Dec 30 2005, 03:37 PM)how ... Dec 30 2005, 15:13 boombaard QUOTE (Garf @ Dec 30 2005, 03:13 PM)QUOTE (bo... Dec 30 2005, 15:46 jussi well, and what about the HDCD (20bit) technology? ... Dec 30 2005, 15:52 Garf QUOTE (jussi @ Dec 30 2005, 04:52 PM)well, an... Dec 30 2005, 16:00 Garf QUOTE (boombaard @ Dec 30 2005, 04:46 PM)QUOT... Dec 30 2005, 15:56 Crissaegrim Definitive answer... Artists record at as high as ... Dec 30 2005, 17:02 bug80 QUOTE (Crissaegrim @ Dec 30 2005, 06:02 PM)De... Dec 30 2005, 17:09 William Well, it sounds like these 24bits / whatever kHz a... Dec 30 2005, 15:54 Wintershade Sorry for popping in like that, but here's my ... Dec 30 2005, 16:04 bug80 QUOTE (Wintershade @ Dec 30 2005, 05:04 PM)So... Dec 30 2005, 16:25 Wintershade QUOTE (bug80 @ Dec 30 2005, 05:25 PM)Do you h... Jan 2 2006, 12:45 krabapple QUOTE (Wintershade @ Dec 30 2005, 10:04 AM)So... Jan 6 2006, 20:16 Axon Some DSP algorithms may benefit from a high sampli... Dec 30 2005, 19:39 Lyx Regarding clipping and samplerate: according to a ... Dec 30 2005, 19:58 bug80 QUOTE (Lyx @ Dec 30 2005, 08:58 PM)Regarding ... Dec 31 2005, 12:23 Garf QUOTE (Lyx @ Dec 30 2005, 08:58 PM)As you kno... Dec 31 2005, 14:26 Raptus >16bit would be necessary if someone wanted to ... Dec 30 2005, 20:07 NoXFeR On a sidenote; recorders may want higher frequenci... Dec 31 2005, 00:05 bug80 QUOTE (NoXFeR @ Dec 31 2005, 01:05 AM)On a si... Dec 31 2005, 12:16 NoXFeR QUOTE (bug80 @ Dec 31 2005, 12:16 PM)QUOTE (N... Dec 31 2005, 15:18 WmAx QUOTE (NoXFeR @ Dec 31 2005, 10:18 AM)The poi... Dec 31 2005, 15:29 Lyx One more reason to instead simply use proper level... Dec 31 2005, 12:33 bug80 QUOTE (Lyx @ Dec 31 2005, 01:33 PM)One more r... Dec 31 2005, 13:33 Garf QUOTE (bug80 @ Dec 31 2005, 02:33 PM)QUOTE (L... Dec 31 2005, 14:20 bug80 QUOTE (Garf @ Dec 31 2005, 03:20 PM)QUOTE (bu... Dec 31 2005, 14:23 Garf QUOTE (bug80 @ Dec 31 2005, 03:23 PM)QUOTE (G... Dec 31 2005, 14:31 kwwong The main reason why sampling rates > 44.1Khz is... Dec 31 2005, 14:30 Garf QUOTE (kwwong @ Dec 31 2005, 03:30 PM)The mai... Dec 31 2005, 14:41 kwwong QUOTE (Garf @ Dec 31 2005, 07:41 AM)QUOTE (kw... Jan 1 2006, 04:30 kwwong QUOTE (kwwong @ Dec 31 2005, 09:30 PM)QUOTE (... Jan 1 2006, 04:39 WmAx QUOTE (kwwong @ Dec 31 2005, 09:30 AM)As for ... Dec 31 2005, 15:39 Garf Another thing to consider is that with proper dith... Dec 31 2005, 14:51 marcan QUOTE (Garf @ Dec 31 2005, 05:51 AM)Another t... Jan 5 2006, 15:57 enry2k QUOTE (marcan @ Jan 5 2006, 06:57 AM)QUOTE (G... Jan 8 2006, 21:28 Garf QUOTE (marcan @ Jan 5 2006, 04:57 PM)QUOTE (G... Jan 10 2006, 12:33 Garf I think what he's trying to say is this:
If y... Dec 31 2005, 15:31 Lyx I think he means playing 192khz sample at 44khz WI... Dec 31 2005, 15:31 ivalladt QUOTE (Garf @ Dec 29 2005, 03:13 PM)The quest... Dec 31 2005, 19:13 dekkersj QUOTE (Garf @ Dec 31 2005, 02:51 PM)Another t... Jan 2 2006, 15:41 Qjimbo Ok, back to the original question of the thread. T... Jan 9 2006, 00:20 Lyx QUOTE (Qjimbo @ Jan 9 2006, 12:20 AM)Firstly ... Jan 9 2006, 16:17 marcan QUOTE (Lyx @ Jan 9 2006, 07:17 AM)QUOTE (Qjim... Jan 9 2006, 17:59 Woodinville QUOTE (Lyx @ Jan 9 2006, 07:17 AM)This thread... Jan 10 2006, 00:38 Garf QUOTE (Woodinville @ Jan 10 2006, 01:38 AM)We... Jan 10 2006, 12:42 Woodinville QUOTE (Garf @ Jan 10 2006, 03:42 AM)QUOTE (Wo... Jan 10 2006, 23:41 CSMR Somehow this question brings out all the know-alls... Jan 9 2006, 01:52 AndyH-ha The Sampling Theorem says that signals containing ... Jan 9 2006, 08:28 bug80 QUOTE (AndyH-ha @ Jan 9 2006, 09:28 AM)T... Jan 9 2006, 10:19 Woodinville QUOTE (AndyH-ha @ Jan 8 2006, 11:28 PM)T... Jan 10 2006, 00:41 AndyH-ha My immediately available source is Principles of D... Jan 9 2006, 18:02 SebastianG QUOTE (AndyH-ha @ Jan 9 2006, 06:02 PM)o... Jan 9 2006, 18:30 stephanV @crimsontide:
You can never prove a negative. The... Mar 13 2006, 17:49 crimsontide QUOTE (stephanV @ Mar 13 2006, 10:49 AM)@crim... Mar 13 2006, 18:32 harlekeyn 16bit means 2^16 = 65536 possible values
for each ... Mar 19 2006, 06:58 Pio2001 QUOTE (harlekeyn @ Mar 19 2006, 07:58 AM)If y... Mar 19 2006, 22:07 crimsontide Well I agree with what Tristan said – For example ... Mar 20 2006, 11:03 Woodinville QUOTE (crimsontide @ Mar 20 2006, 02:03 AM)I ... Mar 20 2006, 21:19 harlekeyn WHEN COMPARING digital audio to digital photograph... Apr 4 2006, 16:48 benski With somewhat expensive studio equipment (RME Hamm... Apr 4 2006, 16:56 |
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Lo-Fi Version | Time is now: 25th May 2013 - 17:03 |
