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Aleron Ives
post Dec 13 2010, 02:23
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After a bit of searching, I failed to find any specific answers, so I hope I'm not repeating a commonly-asked question. I'm planning to make digital recordings from vinyl by using the line-in jack on my PC with a Sound Blaster Audigy 2 sound card. I was planning to use Audacity to do the recording, and I was wondering if there is any real purpose to using 24 bit and/or a high sample rate like 88,200 or 96,000 Hz when originally recording. The final destination will be typical 16 bit 44,100 Hz, but if I decide to try do do click/pop or noise removal, is there any benefit from doing such work at a higher quality and then reducing the sample rate and bit depth later, rather than doing all the manipulation at an initial setting of 16/44? The only topic on this subject that I found was this one:

http://www.hydrogenaudio.org/forums/index....showtopic=61758

Also, Audacity allows you to record with 32 bit float as well, but I'm quite sure that my sound card doesn't support it. Is there any way to verify that the sound card actually does output 24 bit when you're recording at that depth? If there is, I haven't found any way to configure it, except in the media player supplied by Creative, which allows you to select the bit depth for recording (but presumably only for it, not for other programs like Audacity). Any assistance would be greatly appreciated.
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Juha
post Dec 13 2010, 05:55
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Audigy 2 does support 24/96 but, it's same result if you record using 16/96 (measured using RMAA) -> no true 24-bit recording possible.

To test if the resulting samplerate is 96 just record something and then check with some spectrum analysis software (as for an example, iZotope RX http://www.izotope.com/) if the frequency range goes beyond 22.05 kHz.


Juha
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Brod
post Feb 9 2012, 07:26
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QUOTE (Juha @ Dec 13 2010, 12:55) *
To test if the resulting samplerate is 96 just record something and then check with some spectrum analysis software (as for an example, iZotope RX http://www.izotope.com/) if the frequency range goes beyond 22.05 kHz.


You're confusing low-pass filtering with sampling rate - the two things are not related.
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pdq
post Feb 9 2012, 18:14
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QUOTE (Brod @ Feb 9 2012, 02:26) *
QUOTE (Juha @ Dec 13 2010, 12:55) *
To test if the resulting samplerate is 96 just record something and then check with some spectrum analysis software (as for an example, iZotope RX http://www.izotope.com/) if the frequency range goes beyond 22.05 kHz.


You're confusing low-pass filtering with sampling rate - the two things are not related.

I think the point was that if the samplerate was 96 kHz then there may (and probably will) be frequencies above 22.05, but if the samplerate was 44.1 then there can not be frequencies above 22.05.
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Posts in this topic
- Aleron Ives   Vinyl -> Digital   Dec 13 2010, 02:23
- - saratoga   I'd probably just record at whatever the highe...   Dec 13 2010, 02:27
- - Aleron Ives   If I select to record at 96/24 in a program like A...   Dec 13 2010, 05:07
|- - saratoga   QUOTE (Aleron Ives @ Dec 12 2010, 23:07) ...   Dec 13 2010, 05:09
- - Juha   Audigy 2 does support 24/96 but, it's same res...   Dec 13 2010, 05:55
|- - Aleron Ives   QUOTE (Juha @ Dec 12 2010, 21:55) Audigy ...   Dec 13 2010, 06:42
|- - Brod   QUOTE (Juha @ Dec 13 2010, 12:55) To test...   Feb 9 2012, 07:26
|- - pdq   QUOTE (Brod @ Feb 9 2012, 02:26) QUOTE (J...   Feb 9 2012, 18:14
|- - greynol   QUOTE (Brod @ Feb 8 2012, 22:26) You...   Feb 9 2012, 18:52
- - rkay5   Hi, I recorded a lot LP's and I have found ...   Dec 13 2010, 07:30
|- - greynol   It was actually primarily directed at the last par...   Dec 14 2010, 20:57
- - greynol   Per our Terms of Service to which you agreed upon ...   Dec 13 2010, 07:39
|- - 2Bdecided   QUOTE (greynol @ Dec 13 2010, 06:39) Per ...   Dec 14 2010, 14:44
- - cliveb   QUOTE (Aleron Ives @ Dec 13 2010, 01:23) ...   Dec 13 2010, 09:53
|- - Aleron Ives   Thanks for all the input so far. I do have a few m...   Dec 13 2010, 21:25
|- - saratoga   QUOTE (Aleron Ives @ Dec 13 2010, 15:25) ...   Dec 13 2010, 21:30
|- - DonP   QUOTE (Aleron Ives @ Dec 13 2010, 15:25) ...   Dec 13 2010, 22:01
|- - cliveb   QUOTE (Aleron Ives @ Dec 13 2010, 20:25) ...   Dec 14 2010, 09:39
|- - DonP   QUOTE (cliveb @ Dec 14 2010, 03:39) Provi...   Dec 14 2010, 13:30
- - greynol   Unless you know that you're going to have a pr...   Dec 13 2010, 22:01
- - Juha   QUOTE Since recording at 24/96 seems to be out of ...   Dec 13 2010, 22:07
- - greynol   I only scanned those links, but didn't see any...   Dec 13 2010, 22:12
- - Juha   QUOTE I think you're probably best off recordi...   Dec 13 2010, 22:15
- - greynol   Ok so they still didn't get it right with the ...   Dec 13 2010, 22:20
- - LocrianGroove   Has anyone done any testing to determine the minim...   Dec 15 2010, 04:36
|- - saratoga   QUOTE (LocrianGroove @ Dec 14 2010, 22:36...   Dec 15 2010, 06:42
|- - cliveb   QUOTE (LocrianGroove @ Dec 15 2010, 03:36...   Dec 15 2010, 10:44
|- - LocrianGroove   QUOTE (cliveb @ Dec 15 2010, 04:44) It wa...   Dec 15 2010, 19:13
- - kraut   QUOTE We've been doing the calculations based ...   Dec 15 2010, 07:11
|- - LocrianGroove   QUOTE (kraut @ Dec 15 2010, 01:11) QUOTE ...   Dec 15 2010, 19:05
- - AndyH-ha   There is the noise level as recorded and the noise...   Dec 15 2010, 08:53
- - Brod   There's no such thing as a dead discussion - t...   Feb 10 2012, 08:46
- - Canar   QUOTE (Brod @ Feb 8 2012, 22:26) QUOTE (J...   Feb 10 2012, 08:51


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