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Wave Corrector Users • View topic - 44.1 or 48 kHz

44.1 or 48 kHz

This forum is for discussing Wave Corrector, audio projects, tips & tricks etc.

Moderator: Derek

44.1 or 48 kHz

Postby mannie.gross » Fri Jun 17, 2005 6:11 am

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Postby Ray Bell » Fri Jun 17, 2005 8:31 pm

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Postby mannie.gross » Wed Jun 22, 2005 10:32 am

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Postby Glenn » Sun Jun 26, 2005 11:34 pm

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Why 48kHz in WC?

Postby deadpoirotsketch » Thu Sep 08, 2005 6:01 am

The standard for DAT was 48kHz but I think that standard is more or less dead now as people are using 96kHz and even 192kHz sampling rates and 24 bit bit-depth in music studios these days. There are quite a few relatively cheap soundcards capable of recording at that sort of quality level these days, but Wave Corrector is not aimed at that market. In the end most of its users will, I suspect, simply want to record out to a CDR at 44.1kHz, 16 bit without the added hassle of downsampling.

I have read elsewhere that the higher the sample rate and bit depth of your original recording then as a rule the better quality of your 44.1kHz, 16bit wav file after resampling compared to a directly recorded 44.1kHz, 16bit wav file. I think that would depend on the quality of the resampling algorithm and software used. You can pay a lot for high end software! I think there is a diminishing returns factor if you are using a typical domestic soundcard rather than high-end professional hardware. I couldn't repeat the technical explanations - it was all Nyquist and anti-aliasing stuff and made my brain hurt.

I'm not quite sure why Wave Corrector has a 48kHz option, except there were reports on the Internet forums that the Soundblaster Live and Audigy cards automatically upsampled any 44.1kHz input to 48kHz for internal processing and then downsampled it again on output. Apparantly that was a bad thing for technical reasons I can't remember, and purists bought alternative cards that didn't do it. If you did have an SB Live or an audigy then apparently it was better to record directly and process at 48kHz to avoid the resampling - although you would still have to write out a 44.1kHz wav file to record it to a playable audio CD.

If that is of interest I'm sure you can Google out the relevent forum articles. Although Creative remained pretty quiet about this apparent fault there was quite a lot of discussion on the forums which I dipped into now and again without getting really involved.

My apologies in advance if I've reported this SBLive/Audigy business incorrectly as it was a few years ago now and I went out and bought an Audiophile 2496 to do my digitising instead, and I kept my Audigy installed for games and MIDI.
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Audigy panic prevention

Postby deadpoirotsketch » Thu Sep 08, 2005 8:04 am

I don't want to make anyone reading my previous post think they have to throw out their audigy card, so here is a link to a site which explains the 48/44.1kHz resampling problem in straightforward terms:

http://www.pcmus.com/choosecard.htm#whynot

and here is a link to someone who has done extensive and serious testing and whose message seems to be that the fuss was all over-the-top and the Audigy cards are pretty good.

http://pages.sbcglobal.net/hamakerd/sbsrc/

If you personally can't actually hear a difference because of the 48/44.1 resampling then is there a problem?

I personally have an Audigy but I don't use it for recording. I won't be rushing out to buy the new Creative X-live. It sounds fantastic but I think it better to wait 6 months and let other people dig down and find out any shortcomings and whether they really matter or not. (Smile).
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Re: Why 48kHz in WC?

Postby Derek » Thu Sep 08, 2005 9:17 am

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