[PD] tabread4~ "broken" interpolation algorithm - was Re:, Max Smoother Audio than Pd?

[cyrille henry]

i think this pdf can add lot's of useful information to this thread :
http://www.student.oulu.fi/~oniemita/dsp/deip.pdf

cyrille


Matteo Sisti Sette a écrit :
> Roman Haefeli escribió:
>> On Tue, 2010-03-30 at 14:15 +0200, Matteo Sisti Sette wrote:
>>
>>> However, even in presence of a tradeoff that makes some sense (i.e. 
>>> each of the two choices has advantages and disadvantages), it seems 
>>> to me that for audio applications the generated high-frequency noise 
>>> due to discontinuities should be _hugely_ worse than the 
>>> passband-non-flatness.
>>
>> Judging from the graph, it seems that the differences in the
>> passband-non-flatness are  much smaller than the differences in the stop
>> band. But then again, maybe I am tricked by the logarithmic view. 
> 
> Hmm, I don't think they can be compared at the same scale - though I 
> don't know with what scaling factor thay can be compared - or if it 
> makes sense at all to compare them quantitatively.
> 
> However, when one has to evaluate the ripple of the flat part, one 
> usually zooms in quite a bit...
> 
>