Subject: Re: Frequency response was Re: [linux-audio-user] Audiophile CD's
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Mon Jan 28 2002 - 21:30:33 EET
On Mon, Jan 28, 2002 at 01:25:35 -0500, Paul Winkler wrote:
> On Mon, Jan 28, 2002 at 05:27:46PM -0000, Tony Lambley wrote:
> > Wouldn't fx algorithms be a difference case though?
>
> That's a good point. With digitally generated or processed material,
> aliasing is always a concern; raising the sampling rate is an easy way
> to make the programmer's job easier.
Not much. It makes filter design easier, but you still have to take care
of the aliasing. Running code at greater rates than the input data is
a common way of preventing aliasing, but the key thing is that the
internal rate is higher than the input or output.
- Steve
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