Subject: Re: [linux-audio-dev] Sample Rate / Resolution question
From: Stefan Kost (kost_AT_imn.htwk-leipzig.de)
Date: Fri Mar 01 2002 - 18:05:04 EET
Jason wrote:
> On Thu, 28 Feb 2002, Paul Winkler wrote:
>
>>>So why do we work with 96kHz? I don't know of any reason other than 'it
>>>seems to
>>>sound better'.
>>>
>>and it's a convenient excuse for the industry to sell us more expensive gear...
>>
> </lurk>
>
> There is the benefit that when you sample at a higher rate in your initial
> recording, the analog anti-aliasing filter before the sampler in the A/D
> converter doesn't have the potential to effect nearly as much audible
> content.
>
> there was a similar discussion on LAU about this issue
> last month
> that really didn't seem to come to any conclusions.
>
> <lurk>
>
Too be more precise, it can be less steep towards the stopband and
thus causes less ripple in the passband.
Furthermore, a lot of virtual audio gear is not using proper algorithms for up/down-sampling.
Using a higher sampling rate adds more headroom, so your audio doesn't suffer from aliasing.
Stefan
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