IPB

Welcome Guest ( Log In | Register )

SACD decoder options
Anakunda
post Dec 13 2011, 18:14
Post #1





Group: Members
Posts: 479
Joined: 24-November 08
Member No.: 63072



Hello,

perhaps somebody can explain meaning of SACD decoder options.

ASIO Driver mode: PCM / DSD (Autodetect) difference
and
DSD2PCM mode: Multistage (fixed point) / Multistage (floating point) / Direct (Floating point, 30kHz LF) difference

I'm utterly aimed to get highest quality for converter..

What's the native sampling frequency for SACD? I have 4 choices which 44.1 is too low, but there are higher. I intuiitionally choosed 88.2kHz but not sure if this still isnot downsampling the undecoded audio. I need a value that won't up/downsample the audio any way and extracts in the same reate as original. Thankyou.
Go to the top of the page
+Quote Post
 
Start new topic
Replies
SoNic67
post Apr 7 2012, 05:29
Post #2





Group: Members
Posts: 108
Joined: 3-February 11
Member No.: 87877



SACD is an optical support that holds an "encrypted" version of DSD audio. The same as DVD/CD are optical supports for PCM audio.
So there is no point of asking what is the sampling frequency for SACD - that's the disc itself.
More about that on wiki.
As quality goes, the DSD (resulted from SACD) is equivalent with PCM 24 bit 96kHz... So the 176.4kHz might be overkill, but some might say 88.2kHz is not "complete". As in it "goes" only to 40kHz instead of 50kHz biggrin.gif
In my view, 24 bit at 88.2kHz will get the maximum quality from DSD on today's DACs (that are slightly less performant at 192kHz rates).

This post has been edited by SoNic67: Apr 7 2012, 06:20
Go to the top of the page
+Quote Post
Anakunda
post Apr 7 2012, 09:00
Post #3





Group: Members
Posts: 479
Joined: 24-November 08
Member No.: 63072



QUOTE (SoNic67 @ Apr 7 2012, 06:29) *
As quality goes, the DSD (resulted from SACD) is equivalent with PCM 24 bit 96kHz... So the 176.4kHz might be overkill, but some might say 88.2kHz is not "complete". As in it "goes" only to 40kHz instead of 50kHz biggrin.gif


Then why must it be resampled to 88.2, 176.4 or even 352.8kHz? Why can't the reader keep the original sampling? Is 352.8kHz any sense when 176.4 is overkill already?
Go to the top of the page
+Quote Post

Posts in this topic
- Anakunda   SACD decoder options   Dec 13 2011, 18:14
- - lvqcl   QUOTE ASIO Driver mode: PCM / DSD (Autodetect) dif...   Dec 13 2011, 18:33
|- - Anakunda   QUOTE (lvqcl @ Dec 13 2011, 18:33) QUOTE ...   Dec 13 2011, 18:37
- - NiPP0   Currently I use the 'Multi-Stage (Double Preci...   Apr 7 2012, 01:07
|- - NiPP0   Edit 2: Can anybody confirm that Multi-Stage (Doub...   Apr 7 2012, 21:39
- - SoNic67   SACD is an optical support that holds an "enc...   Apr 7 2012, 05:29
|- - Anakunda   QUOTE (SoNic67 @ Apr 7 2012, 06:29) As qu...   Apr 7 2012, 09:00
- - lvqcl   Do you know what the orginal samplerete is?   Apr 7 2012, 09:48
- - Sandrine   Guys, the discussion you're having here is som...   Apr 7 2012, 12:03
- - NiPP0   2822.4/24=117.6... 117.6KHz isn't a rate so we...   Apr 7 2012, 21:44
|- - lvqcl   QUOTE (NiPP0 @ Apr 8 2012, 00:44) 2822.4/...   Apr 7 2012, 23:58
|- - SoNic67   QUOTE (NiPP0 @ Apr 7 2012, 16:44) 2822.4/...   Apr 8 2012, 00:39
|- - lvqcl   QUOTE (SoNic67 @ Apr 8 2012, 03:39) Actua...   Apr 8 2012, 09:42
- - Anakunda   I think mine foobar shows an astronomic samplerate...   Apr 8 2012, 00:02
|- - kode54   QUOTE (Anakunda @ Apr 7 2012, 16:02) I th...   Apr 8 2012, 00:56
- - SoNic67   I ment to say that information carried is the same...   Apr 10 2012, 04:03
- - NiPP0   Sorry to keep asking, but does dithering need to b...   Apr 13 2012, 15:00
- - lvqcl   I tested it (ver. 0.5.3), and it outputs samples i...   Apr 13 2012, 15:58
|- - NiPP0   QUOTE (lvqcl @ Apr 13 2012, 15:58) I test...   Apr 14 2012, 17:59
|- - NiPP0   Done some more reading... from what I gather DSD -...   Apr 29 2012, 22:38
- - Anakunda   Can I know how does the new decoding mode (Install...   Sep 5 2012, 10:35


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: 24th November 2014 - 15:03