[haiku-development] Re: Mixer resampler API
- From: pulkomandy <pulkomandy@xxxxxxxxxxxxxxxxx>
- To: haiku-development@xxxxxxxxxxxxx
- Date: Wed, 18 Aug 2010 22:33:23 +0200
> One problem with simple interpolation is that it introduces high frequency
> noise, so it has to be followed by a low-pass filter. I haven't looked at
> the code, but if you haven't done that, it would explain the poor quality.
Yes, but looking at the available menu in mixer preference, I feel it
would be silly to do interpolation with a low-pass filter, as it would
mean more processing than the lanczos implementation (which does both in
one operation).
>
> A quick look at Wikipedia suggests that the Lanczos filter is a low-pass
> filter, so I guess better quality can be expected when using it.
I'm trying, let's see how it goes.
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